Changelog

Guides 2

• Email Header Analyzer: Copy Full Headers From Gmail, Outlook or Apple Mail and Read the Results
• Image to Base64: Turn an Image Into a Data URI for HTML, CSS and Email

Guides 2

• Open Graph Preview: Check How a Link Looks on Facebook, X, LinkedIn, Slack and More
• LIVP Extract: Open an iPhone .livp File and Get the Photo and Video

Guides 2

• Readability Calculator: Check the Reading Level of Any Text
• VAT Calculator: Add VAT, Remove VAT or Find the VAT in Any Price

Guides 2

• cURL to Code: Convert a cURL Command to JavaScript, Python, PHP, Go, Ruby or Node.js
• Screen Resolution Detector: Check Screen Size, Viewport and Pixel Ratio

Guides 2

• JSON to Go Struct: Generate Go Types From a JSON Sample, and What to Fix Before You Use Them
• Text Truncate: Cut Text to a Character or Word Limit Without Breaking Words or Emoji

Guides 2

• vCard Generator: Create a .vcf Contact File for iPhone, Android and Outlook
• Running Pace Calculator: Find Your Pace, Finish Time or Distance

Guides 2

• Pomodoro Timer: Set Up Focus and Break Cycles That Fit Your Work
• Amortization Calculator: Read Your Loan Schedule Payment by Payment

Guides 2

• Prime Checker: Test Any Number and Get Its Prime Factorization
• URL Parser: Read Any Link Part by Part (Host, Path, Query, Hash)

Guides 2

• DNS Propagation Checker: Is Your DNS Change Live Yet?
• JSON Flatten: Turn Nested JSON into Clean CSV Columns

Guides 2

• Aspect Ratio Calculator: Resize Without Stretching
• HMAC Generator: Create and Check HMAC-SHA256 Signatures

Guides 2

• JSON to TypeScript: Generate Interfaces from a JSON Sample
• Compound Interest Calculator: How Your Money Grows, Step by Step

Guides 2

• H1 Checker: How to Fix a Page's Heading Structure (H1–H6)
• Case Converter: camelCase, snake_case, kebab-case and More

Guides 1

• Subnet Calculator: Work Out IPv4 CIDR Ranges Fast

New tools 26

• Avatar Generator Make an initials avatar or a mirrored identicon from a name or email. Same input, same avatar. Download SVG or PNG.
• Bookmarks HTML to Markdown Turn a browser bookmarks.html export into Markdown, with folders as headings and links as lists, for Notion or Obsidian.
• Coupon Code Generator Make up to 10,000 unique random coupon or promo codes with a prefix, length, character set and groups. Copy them or download a CSV.
• CSV to Internet Shortcuts Turn a CSV of names and links into Windows .url Internet Shortcut files, downloaded as one ZIP.
• DNS Propagation Checker Compare A, AAAA, CNAME, MX, TXT or NS answers and TTLs from Google Public DNS and Cloudflare side by side.
• DOCX Accept Track Changes Accept or reject every tracked change in a Word .docx and download a copy with the revision markup gone.
• DOCX to TXT Pull the plain UTF-8 text out of one or more Word .docx files and download it as .txt.
• ICS Busy/Free Turn a .ics calendar export into an availability file: Busy events or VFREEBUSY periods, no details.
• ICS Diff Compare two .ics calendar exports and see which events were added, removed or changed, matched by UID.
• ICS Expand RRULE Turn recurring .ics events into one event per occurrence between two dates, as .ics, JSON or CSV.
• ICS Filter Trim a .ics calendar to a date range, keyword, category or status, and drop cancelled events.
• ICS Privacy Scrub Redact a .ics calendar export field by field: keep busy times, drop titles, links, attendees and alarms.
• ICS Timezone Convert Move .ics events to another time zone, re-anchor clock times, or rename Windows zone IDs to IANA.
• JSON Flatten Flatten nested JSON into a CSV with dot-path columns such as address.city, with a wrapper array found for you.
• LIVP Extract Unpack an iPhone Live Photo .livp into its HEIC still and MOV clip, with an optional JPG copy of the still.
• Markdown Table to CSV Turn a GitHub-flavored Markdown pipe table, or one of several in a README, into CSV, and a CSV back into a Markdown table.
• Markdown TOC Generator Build a nested table of contents with GitHub or GitLab anchor links from a Markdown file's headings, then copy it or insert it.
• OPML to Bookmarks HTML Turn a feed reader or podcast OPML export into a bookmarks.html that Chrome, Firefox and Edge import.
• PDF Metadata Remover See and remove a PDF's author, title, creator, producer, dates and XMP metadata, with a before and after list.
• Protect PDF Add a password to a PDF with AES-256 encryption, and optionally limit printing, copying and editing.
• Redirect Chain Checker Follow a URL through every redirect and see each hop's status code, Location and time.
• Reverse DNS Lookup Find the PTR hostname of an IPv4 or IPv6 address, or see plainly that it has none.
• Safari Bookmarks to HTML Turn Safari's Bookmarks.plist, binary or XML, into a bookmarks.html other browsers import, Reading List included.
• Text Reverse Reverse text by character, word or line. Emoji, flags and accented letters stay whole. Same function as the text-reverse API.
• Text Truncate Cut text to a character or word limit, with an ending such as ... and a whole-word option. Live counts for the original and the result.
• Unlock PDF Remove a password you know from a PDF and save a copy that opens without it.

Improvements 16

• JSON to XML keeps attributes over the API

• Unit Converter API converts time and volume

• dot.case over the API

• Page addresses work as API names

• Random Name Picker takes a pasted list over the API

• Unlock links where they were missing

• QR codes over the API

• Line Sorter API removes repeats in the same call

• Number Base converts any size exactly

• Two-way pages name their other direction

• Hubs list the guides for their tools

• Step-by-step help on more pages

• Site to Markdown works again

• One Image Resizer

• One NDJSON and CSV page

• Text Truncate keeps characters whole

Fixes 10

• Pages say what an API call sends

• Converters no longer advertise video and audio

• IP Address Lookup tells one story

• LinkedIn Post Generator promises structure, not reach

• URL Encoder description ends in a sentence

• Every category says what an API call sends

• Email Header Analyzer sends nothing

• What Is My IP shows only what it does

• KKTC Exchange Rates has its own site

• PDF Text Extractor lists one set of formats

New tools 5

• CSP Header Generator Build a Content-Security-Policy header from presets and directives, with a meta tag and warnings for unsafe sources.
• Password Hasher (bcrypt / Argon2id) Hash a password with bcrypt or Argon2id for storage, or verify a password against a stored hash, in your browser.
• SRT to TXT Turn SRT or VTT subtitles into a plain-text transcript without timestamps or cue numbers.
• Subtitle Cleaner Strip HTML tags, ASS overrides, SDH brackets and speaker labels from SRT or VTT captions without touching timing.
• Subtitle Overlap Fixer Fix SRT or VTT cues that start before the previous cue ends, with a minimum cue duration. Text stays as it is.

Guides 5

• How to Write a Content-Security-Policy Header, Step by Step
• bcrypt vs Argon2id: How to Hash a Password for Storage
• SRT to TXT: Turn Subtitles Into a Plain Transcript
• Clean SRT and VTT Subtitles: Remove Tags, {\an8}, [music] and Speaker Names
• Fix Overlapping Subtitles: Repair SRT and VTT Cue Overlaps

Improvements 7

• Secure Note Sharing works across devices

• Phone Number Validator checks lists too

• Hash Comparison compares MD5

• URL Safety Checker spots brand lookalikes

• Password Breach Checker: a private path for the API

• Phone number API validates every country

• CSP Header Generator warns about the Google Analytics snippet

Fixes 5

• The RSA tool says what it is

• Security pages say what leaves your device

• Complete meta descriptions

• Broken FAQ and page text repaired

• Answers no longer lose words in angle brackets

New tools 6

• CSV Dedupe Remove duplicate rows from a CSV by whole row or by key columns such as email or SKU, keep the first or last copy, and download the clean file.
• CSV Diff Compare two CSV or TSV exports by a key column and see the rows that were added, removed or changed, down to the cell. Reordered rows are not changes.
• llms.txt Generator Build an /llms.txt file for your site: a summary and grouped links in the llmstxt.org format, with the robots.txt and link header lines that point agents to it.
• robots.txt Tester Paste a robots.txt and test whether Googlebot, GPTBot or any user agent may crawl a path, with the rule and line that decided it.
• SQL to JSON Turn SQL INSERT statements or a .sql dump into JSON objects with typed values, one array per table. Nothing is executed.
• XML Sitemap Validator Paste an XML sitemap or sitemap index to find missing or relative URLs, bad lastmod dates, invalid priority and changefreq values and size-limit problems, by line.

Guides 6

• Remove Duplicate Rows From a CSV by Email, ID or Any Column
• Compare Two CSV Files by ID: Find Added, Removed and Changed Rows
• How to Create an llms.txt File for Your Website
• Test robots.txt Rules: Is a URL Blocked for Googlebot or GPTBot?
• Validate an XML Sitemap: Find the Errors Search Engines Trip On
• Convert SQL INSERT Statements to JSON With the Right Types

Improvements 4

• JSON-LD Generator: JobPosting and Course over the API

• Domain Rating Checker says when the provider is down

• GEO Analyzer: a clear message and a retry button

• SEO hub in Markdown names the tools that go online

Fixes 4

• Hreflang: x-default no longer replaces the language tag

• GEO Analyzer over the API

• SEO hub answers match the tools

• Clearer tool descriptions

New tools 6

• Env Diff Compare two .env files by key: added, removed and changed variables, with secret values masked.
• Env Merge Merge a base .env with an overlay using a conflict rule you pick, and download one .env file.
• Merge VCF Combine several .vcf contact files into one to import, with optional skip of exact duplicate cards.
• TOML Diff Compare two TOML files by parsed value and list added, removed and changed key paths.
• URL to Webloc Convert Windows .url Internet Shortcuts, or a ZIP of them, into Mac .webloc files Finder opens.
• Webloc to URL Convert Mac .webloc website shortcuts, or a ZIP of them, into Windows .url Internet Shortcuts.

Guides 6

• Find Missing Environment Variables: Compare .env With .env.example
• Combine .env and .env.local Into One File, With Clear Conflict Rules
• Combine Contacts From Old Phones Into One vCard File Before Importing
• Review Cargo.toml and pyproject.toml Changes Without Formatting Noise
• Move Windows Internet Shortcuts to a Mac
• Move Mac Website Shortcuts to a Windows PC

Improvements 5

• jq Playground: select() works everywhere

• Regex tester over the API: capture groups and replace

• JSON to Form is one page

• API and MCP health on the status page

• Markdown versions of the site pages

Fixes 3

• Hub counts match their pages

• Privacy wording says what really happens

• The MCP page counts MCP tools

New tools 7

• Bookmarks Diff Compare two bookmarks.html exports and see which links were added, removed, renamed or moved.
• Bookmarks JSON to HTML Turn Chrome's profile Bookmarks file or a Firefox JSON backup into a bookmarks.html any browser imports.
• Device Frame Mockup Put any screenshot inside a phone, tablet or browser window frame and download a watermarked PNG.
• Instagram Story Mockup Make a mock 9:16 Instagram story with progress bars, text overlays and a reply bar, as a watermarked PNG.
• LinkedIn Post Mockup Make a mock LinkedIn feed post as a watermarked PNG: author, headline, text, image, reactions and comments.
• Merge Bookmarks Combine two or more bookmarks.html exports from Chrome, Firefox, Edge or Safari into one file to import.
• Slack Chat Mockup Make a mock Slack-style channel or DM with reactions and thread replies, as a watermarked PNG.

Guides 4

• Compare Two Bookmark Exports: Added, Removed and Moved Links
• Convert Chrome's Bookmarks File (JSON) to bookmarks.html
• Merge Bookmarks From Two Browsers Into One File
• Social Media Mockups That Say They Are Mockups

Improvements 6

• Tweet threads

• WhatsApp photo messages

• iMessage group chats

• ChatGPT: any model label, and an instructions notice

• A watermark that shows on dark mockups

• Uploads work from the keyboard

New tools 1

• Vocabulary Worksheet Paste a word list and print a spelling worksheet: scramble, missing letters, matching, word search and tracing, with an answer key.

Improvements 5

• Vocabulary Worksheet

• Quiz Maker takes three kinds of question

• Flashcards remember what you know

• Attendance registers print

• Seating charts: drag names between seats

Fixes 3

• Seating Chart Maker accepts any class list

• Pages that described features which were not there

• Education Suite explains how it stores your classes

New tools 4

• DOCX Comments Extractor Drop a reviewed Word file and export every comment, author, date and anchor as CSV or Markdown.
• Eisenhower Matrix Sort tasks by urgent and important into four quadrants: do first, schedule, delegate, eliminate.
• Markdown to HTML Paste Markdown or drop a .md file and get HTML to copy or download, tables and task lists included.
• RTF to Markdown Drop a legacy .rtf from WordPad or an old mail export and get editable Markdown back.

Guides 3

• Export Word Comments to CSV Without Opening Word
• Markdown to HTML: Get Markup You Can Paste Into a CMS
• RTF to Markdown: Rescue a WordPad File Without Word

Improvements 8

• Markdown to HTML converts the same way everywhere

• Link destinations are checked against a short list

• The Markdown Previewer stopped denying its own button

• HTML to Markdown finally links the tool it recommends

• An Eisenhower matrix for the list that got too long

• The spreadsheet editor does arithmetic

• You can see which cell is selected

• The tool counts say which list they are counting

Fixes 14

• The spreadsheet editor now calculates its formulas

• Formulas reach across sheets

• The sheet tabs are where you can see them

• A file can hold more than one sheet

• Copy, cut and paste answer the keyboard

• Pin the first column, fill by dragging, reorder by dragging

• The first formula you typed had to wait for a download

• Arrow keys now finish what you are typing and move on

• Typing in a selected cell did nothing

• Pasting a block into the spreadsheet kept only its last cell

• The slide deck builder said it needed a sign-up

• The privacy policy generator stopped calling its output compliant

• The mind map said nothing ever left your device

• The productivity page advertised two tools that are not on it

New tools 6

• DOCX Metadata Remover Strip the author, company, template and editing history a Word document carries in its properties, without uploading the file.
• Paycheck Calculator Estimate US take-home pay from a gross salary: federal income tax from the published bracket tables, plus the employee half of Social Security and Medicare. Federal and FICA only.
• Prime Checker Check whether a number is prime, and see its prime factorisation when it is not.
• SBV to SRT Convert a YouTube Studio .sbv caption export to SubRip .srt that editors and players accept, or convert back the other way.
• Subtitle FPS Converter Rescale every subtitle timestamp between frame rates, such as 23.976 to 25, to fix captions that drift further out of sync the longer a video plays.
• Subtitle Merger Join multiple SRT or VTT subtitle files into one track. Append lays sequential parts end to end and fixes the timestamps that restarted at zero; Dual stacks two languages on one timeline.

Guides 8

• SBV to SRT: Convert YouTube Caption Exports That Nothing Else Opens
• Fix Subtitle Drift: Convert SRT and VTT Between Frame Rates
• Merge Subtitle Files: Join SRT and VTT Parts Into One Track
• GPA Calculator Guide: Weighted, Unweighted and Cumulative
• Macro Calculator Guide: Protein, Carbs and Fat From Calories
• Scientific Calculator Guide: Functions, Modes and Precedence
• Percentage Calculator Guide: Increase, Decrease and Change
• TDEE Calculator Guide: Work Out Your Daily Calorie Burn

Improvements 6

• A Word document no longer tells people who wrote it

• Guides for the three new subtitle tools

• The SBA loan calculator is now an SBA calculator

• Case Converter results are a field you can use

• IP Address Lookup can look up an address again

• The self-employment tax calculator has one set of tables

Fixes 12

• The countdown timer never made a sound

• Story Point Poker described itself as peer-to-peer

• Tools promising exports they never had

• A shortcut finder that named apps it had no data for

• Two pages published without a heading

• Mortgage calculator claimed a PMI estimate it does not make

• The finance page promised after-tax salary figures

• Tax rates were described as current

• Two category pages overstated what stays on your device

• Exchange rates page had no heading

• A tool listed for developers that could never run

• Tools available to code in one way but not another now say so

New tools 5

• Calorie Calculator Work out how many calories to eat per day to lose, maintain, or gain weight, using the Mifflin-St Jeor equation and the deficit or surplus you choose.
• Fraction Calculator Add, subtract, multiply and divide fractions and mixed numbers with every step shown, reduced to lowest terms and converted to a decimal.
• GCD & LCM Calculator Find the greatest common divisor and least common multiple of two whole numbers using the Euclidean algorithm.
• Running Pace Calculator Give any two of pace, distance and finish time to solve for the third, and see the projected 5K, 10K, half marathon and marathon times.
• Statistics Calculator Paste a list of numbers and get count, sum, mean, median, mode, range, variance, standard deviation and the quartiles with the interquartile range.

Improvements 4

• Hyperbolic functions and roots on the scientific calculator

• Two more body fat methods

• The API and MCP name is on the page

• Clearer titles across the Calculators hub

Fixes 5

• Scientific calculator function keys

• The Calculators hub described features that did not exist

• Tool counts matched the hub they were on

• The developer tool catalog listed no tools

• Duplicate entry in the tool API list

New tools 3

• Clean ZIP Remove __MACOSX, .DS_Store, ._ files, Thumbs.db and desktop.ini from a ZIP and download a clean copy.
• Internet Shortcuts to CSV Turn Windows .url Internet Shortcut files, or a ZIP of them, into a CSV or a plain list of URLs.
• Plist JSON Converter Convert Apple XML and binary property lists to JSON, and JSON back to an XML plist.

Guides 4

• How to Remove __MACOSX and .DS_Store from a ZIP File
• How to Extract URLs from Windows .url Shortcut Files to CSV
• How to Convert a Plist File to JSON (XML and Binary)
• How to Animate an SVG Without Writing Code

Improvements 5

• A dual sidebar on every page

• One window for search and saved tools

• A search results page

• Learning paths on the guides page

• What's new and the changelog, redesigned

Fixes 3

• Search tabs show their counts before you type

• The top bar stays put when Saved opens

• Guide cards show their covers again

New tools 10

• Color Blindness Simulator See a palette or screenshot the way common colour vision deficiencies render it.
• CSS Border Radius Generator Set each corner radius with a live preview and copy the CSS.
• CSV to VCF Turn a contacts spreadsheet into one .vcf file that iPhone, Android and Google Contacts import.
• Cubic Bezier Generator Drag two control points to shape a CSS easing curve and copy the value.
• Dedupe Bookmarks Remove duplicate links from a Chrome, Firefox, Edge or Safari bookmarks.html export.
• Env YAML Converter Convert a .env file to a flat YAML map or a Compose/Actions snippet, and back.
• Image Cropper Crop an image to any aspect ratio and download it, without uploading the file.
• INI JSON Converter Convert INI, .cfg and .conf sections to nested JSON and back in your browser.
• OPML to CSV Flatten an OPML feed or podcast subscription export into a CSV of titles, feed URLs and folders.
• YAML TOML Converter Convert YAML to TOML 1.0 and TOML back to YAML in your browser.

Guides 21

• How to Edit a Lottie Animation in the Browser
• How to Turn a Photo Into a Sticker
• How to Extract a Color Palette From an Image
• How to Build a Custom CSS Easing Curve
• How to Use CSS Border Radius Properly
• How to Check a Palette for Color Blindness
• How to Crop an Image Without Uploading It
• How to Build a CSS Animation With a Keyframe Timeline
• How to Build a Glassmorphism Effect in CSS
• How to Build a Color Palette From One Base Color
• How to Generate a Favicon for Every Platform
• How to Edit a Photo in Your Browser Without Signing Up
• How to Convert a .env File to YAML
• How to Convert an INI File to JSON
• How to Convert YAML to TOML (and Back)
• Convert a CSV of Contacts to VCF Without Uploading It
• Remove Duplicate Bookmarks From a bookmarks.html Export
• How to Convert an ICS Calendar File to JSON in the Browser
• How to Merge ICS Files Into One Calendar File
• Convert an OPML Subscription Export to CSV
• How to Split a Large ICS File into Smaller Calendars

API & MCP 6

• Neumorphism Generator
• Text Shadow Generator
• Css Filter Generator
• Clip Path Generator
• +2 more

Improvements 2

• A new layout for every page

• Color Palette Generator exports CSS and JSON

Fixes 1

• Presets work over the REST API

New tools 5

• ICS to JSON Parse a .ics calendar export into JSON, one object per event, for scripts and fixtures.
• JSON to Liquid Turn JSON, JS, Python, PHP or YAML data, or a Handlebars, Mustache or Knap template, into Shopify Liquid.
• Knap Template Renderer Render a Knap template (the Obsidian Web Clipper language) with JSON data into Markdown.
• Merge ICS Combine several .ics calendar exports into one calendar file, with optional UID dedupe.
• Split ICS Cut a large .ics calendar into smaller .ics parts, zipped, so importers accept it.

New tools 3

• DOCX to HTML Drop a Word .docx and get clean semantic HTML for a CMS, a blog, or an email editor.
• HTML to DOCX Paste or drop HTML and download an editable Word .docx with headings, lists, links, and tables.
• ODT to Markdown Drop a LibreOffice .odt and get clean Markdown for a wiki, README, or docs site.

Guides 3

• Convert a Word DOCX to HTML in Your Browser
• Convert HTML to a Word DOCX in Your Browser
• Convert a LibreOffice ODT to Markdown in Your Browser

New tools 2

• NDJSON CSV Converter Turn newline-delimited JSON (.ndjson, .jsonl) into a flat CSV, or a CSV into one JSON object per line, both ways on one page in your browser.
• TSV to CSV Convert tab-separated exports from psql, mysql and Excel into RFC 4180 CSV, and CSV back into TSV, with correct quoting.

Guides 4

• Convert CSV to NDJSON or JSONL in Your Browser: One JSON Object per Line
• Convert NDJSON or JSONL to CSV in Your Browser: Flatten JSON Lines into Rows
• Convert TSV to CSV (and CSV to TSV) in Your Browser with Correct Quoting
• Unix Timestamp Converter: Seconds, Milliseconds, UTC

New tools 3

• AVIF to JPG Convert .avif images from a CDN or phone to JPG, PNG, or WebP in your browser.
• ICNS to PNG Extract a Mac app icon from an .icns file as PNG, largest size or every size.
• TIFF to JPG Convert .tif scans and photos to JPG, PNG, or WebP, one image per page.

Guides 6

• Convert AVIF to JPG: Format, Quality, and Transparency
• ICNS to PNG: Extract Mac App Icons and Available Sizes
• Convert TIFF to JPG: Scan Pages, Color, and File Limits
• ENV to JSON: Preserve Strings, Quotes and Duplicate Keys
• JSON to TOML: Convert Tables, Arrays and Null Values
• Properties to JSON: Choose Flat Keys or Nested Objects

New tools 3

• Env JSON Converter Convert a .env file to a flat JSON object and back in your browser; values stay strings, secrets are not uploaded.
• JSON TOML Converter Convert a JSON object to TOML 1.0 and TOML back to JSON in your browser, with tables and arrays of tables.
• Properties JSON Converter Convert Java .properties to nested or flat JSON and flatten JSON back to dotted keys in your browser.

New tools 3

• ULID & NanoID Generator Generate time-sortable ULIDs or short URL-safe NanoIDs with a custom alphabet and length, in batches of up to 100. Crypto-random.
• URL Parser Split a URL into protocol, host, port, path, query table and hash, as rows and as JSON. Validate it, with an optional HTTPS requirement.
• vCard Generator Create a vCard (.vcf) contact file with name, emails, phones, address, and more. vCard 3.0 or 4.0, escaped and folded per RFC 6350.

Guides 1

• How to Generate Barcodes: Code 128, EAN and UPC

New tools 3

• HTML Tag Stripper Remove every HTML tag and keep the text. Block tags become line breaks, common entities are decoded. Same function as the html-strip API.
• Line Prefix & Suffix Add a prefix, a suffix, or line numbers to every line. Start at any number, pad with zeros, skip blank lines.
• Whitespace Cleaner Trim text, collapse runs of spaces and tabs, remove blank lines, and normalize line endings to LF. Same function as the whitespace-clean API.

New tools 3

• Bookmarks HTML to CSV Turn a browser bookmarks.html export into a CSV with one row per link and its folder path.
• CSV to Bookmarks HTML Turn a spreadsheet of links into a bookmarks.html file Chrome, Firefox, Edge and Safari import.
• VCF to CSV Turn an iPhone, Android, Gmail or Outlook .vcf contacts export into one CSV row per contact.

Guides 3

• Convert a Bookmarks HTML Export to CSV: One Row per Link
• Convert a CSV of Links to a Bookmarks File Browsers Import
• Convert a VCF Contacts Export to CSV Without Uploading It

New tools 5

• ASS to SRT Flatten a styled .ass or .ssa subtitle script to plain .srt that any player accepts.
• CSV to ICS Turn a spreadsheet of events into an .ics file Google Calendar, Apple Calendar and Outlook import.
• DOCX to Markdown Drop a Word .docx and get clean Markdown for a README, wiki, or site page.
• ICS to CSV Turn a Google, Apple or Outlook .ics calendar export into a CSV with one row per event.
• Subtitle Shifter Shift every cue in an SRT or VTT file by one offset so the captions match the audio again.

Guides 5

• Convert a CSV of Events to an ICS File for Google, Apple or Outlook
• Convert an ICS Calendar Export to CSV: One Row per Event
• Convert ASS and SSA Subtitles to SRT Without Losing the Timing
• Convert a Word DOCX to Markdown in Your Browser
• Fix Subtitles That Are Early or Late: Shift SRT and VTT by One Offset

New tools 6

• Images to PDF Combine JPG and PNG images into one PDF, one image per page, in the order you set.
• JSON to SQL Turn a JSON array into CREATE TABLE and INSERT statements. Booleans and null survive.
• PDF Page Numbers Add page numbers to a PDF, with a position, a start value and a title page to skip.
• PDF Watermark Stamp CONFIDENTIAL, DRAFT or your own text across the pages of a PDF.
• SQL to CSV Paste a .sql dump and get a CSV per table. No database to restore.
• Time Difference Calculator Hours between two times of day, including a shift that runs past midnight.

Guides 6

• Calculate Hours Between Two Times, Including Overnight Shifts
• Add Page Numbers to a PDF, Including the Title Page Case
• Add a Watermark to a PDF, and What It Does Not Protect
• Convert JPG and PNG Images to a Single PDF
• Convert JSON to SQL INSERT Statements Without Losing Types
• Convert a SQL Dump to CSV Without Restoring a Database

New tools 3

• CSV to SQL Turn a CSV into CREATE TABLE and INSERT statements for Postgres, MySQL, or SQLite.
• HEIC to JPG Convert iPhone .heic photos to JPG, PNG, or WebP in your browser.
• SRT to VTT Convert SubRip captions to WebVTT and back, both directions on one page.

Guides 5

• Convert CSV to SQL for PostgreSQL, MySQL, and SQLite
• HEIC to JPG: Convert iPhone Photos and Check the Result
• Convert SRT to VTT and WebVTT Back to SubRip
• Tailwind to StyleX Migration: Convert and Review Token Files
• Test Webhooks Online with a Temporary HTTP Request Bin

Guides 6

• Cron to systemd: Convert Crontab to Timers and CronJobs
• Env Linter: Catch Duplicate Keys and Secret Drift
• GraphQL Query Syntax Check Without Running a Server
• HAR Viewer: Inspect DevTools Logs in Your Browser
• HTTP Request Builder: Send Public HTTP Calls Safely
• PEM Decoder: Read Certificates and CSRs Locally

New tools 8

• Cron to systemd Convert a 5-field cron expression into a systemd timer plus a Kubernetes CronJob YAML file.
• Env Linter Lint a .env file for duplicate keys, unquoted spaces, export prefixes, and drift against .env.example.
• GraphQL Playground Paste a GraphQL schema and query. See a syntax or schema check with line-level errors.
• HAR Viewer Paste a HAR file and inspect method, URL, status, size, and time. Copy one entry as cURL. Runs in the browser.
• HTTP Request Builder Build and send an HTTP request. Shows status, headers, and body. Public http and https hosts only.
• PEM Decoder Paste a PEM certificate, CSR, or key. See type, subject, SAN, dates, and issuer in the browser.
• Tailwind to StyleX Converter Convert Tailwind CSS v4 theme variables, design-token JSON, or static Tailwind config objects into StyleX constants and TypeScript declarations.
• Webhook Tester Create a private request bin, send a curl to it, and inspect method, headers, and body. Bins expire. No account.

Guides 4

• Tailwind to StyleX Token Guide: Mapping and Validation
• Local LLM Hardware Guide: Estimate VRAM, RAM, and Model Size
• Postman to cURL Guide: Convert Collections into Portable Commands
• Photo Measurement Guide: Measure Objects in an Image Accurately

New tools 1

• GitHub Dev Card Turn any GitHub username into a FIFA-style dev card rated out of 99 — plus a roast, archetype, commit clock, and five more shareable vibe checks. no login.

New tools 1

• Domain Rating Checker Check the Domain Rating (DR) of up to 25 domains at once and export the results.

Guides 1

• Domain Rating Checker: Read DR and Compare Backlink Strength

New tools 1

• Curve Fitting Calculator Fit linear, polynomial, exponential, logarithmic, power, logistic, Gaussian, or custom models to your X/Y data and get coefficients, R-squared, and a chart.

New tools 3

• PDF Text Extractor Extract text, Markdown, JSON with bounding boxes, HTML or CSV from a PDF, for the whole document or one page. On this page, liteparse WebAssembly parses it in your browser; the file is not uploaded.
• SQLite Browser Open.db /.sqlite /.sqlite3 files in your browser. Run SQL queries, browse schemas, export CSV / JSON / Markdown — your database never uploads. Powered by the official @sqlite.org/sqlite-wasm.
• SQLite Diff Drop two SQLite databases side-by-side and see exactly what changed — added or removed tables, column changes, and row-level diffs by primary key. 100% in-browser, no upload.

Guides 1

• PDF Text Extractor: Text, JSON, and Layout Guide

New tools 6

• GIF to Video Convert an animated GIF to a smaller MP4 or WebM video.
• Mute Video Remove the audio track from a video with no quality loss.
• Video Cropper Crop a video to any region with social aspect ratio presets.
• Video Merger Join multiple video clips into one continuous video.
• Video Reverser Play a video backwards with reversed audio.
• Video Speed Changer Speed up or slow down a video from 0.25x to 4x.

Guides 23

• Audio Format Converter: Export Browser-Decoded Audio as WAV
• Audio Metadata Extractor: Duration, Channels and Bitrate Estimate
• Audio Resampler: Change Sample Rate and Export WAV
• Audio Trimmer: Select a Time Range and Export WAV
• GIF to Video: Convert Animation to MP4 or WebM
• How to View Media File Info Online Free Without Uploading
• How to Mute a Video Online Free Without Uploading
• How to Extract Subtitles from Video Online Free Without Uploading
• How to Compress a Video Online Free Without Uploading
• How to Crop a Video: Frame Selection and Export Limits
• How to Convert Video Format Online Free Without Uploading
• How to Merge Videos Online Free Without Uploading
• How to View Video Metadata Online Free Without Uploading
• How to Reverse a Video Online Free Without Uploading
• How to Rotate a Video Online Free Without Uploading
• How to Change Video Speed Online Free Without Uploading
• How to Make a Video Thumbnail Online Free Without Uploading
• How to Extract Audio from Video Online Free Without Uploading
• How to Convert Video to GIF Online Free Without Uploading
• CSS Box Shadow Generator: Offsets, Blur, Spread and Layers
• CSS Gradient Generator: Directions and Color Stops
• Lorem Ipsum Generator: Create Placeholder Text Online
• Unit Converter: Convert Units of Measurement Online

Guides 21

• CSS Minifier: Remove Whitespace and Check the Output
• JWT Generator: Create Signed JSON Web Tokens Online
• Timezone Converter: Convert Time Between Zones Online
• YAML Validator: Validate & Fix YAML Syntax Online
• Color Converter: HEX, RGB, HSL and Alpha Values
• Contrast Checker: WCAG Ratios for Text and Background Colors
• CSV to JSON: Map Headers, Rows and Data Types
• Word Counter: Count Words & Characters Online
• ER Diagram Designer: Entities, Keys and Relationships
• Cron Expression Generator: Build and Check Five-Field Schedules
• JSON to XML Converter: Convert JSON to XML Online
• JWT Decoder: Decode & Inspect JSON Web Tokens Online
• Number Base Converter: Binary, Hex, Decimal & Octal
• DNS Lookup: Read A, AAAA, MX, TXT and CNAME Records
• Email Validator: Check Address Syntax and Understand the Limits
• Hreflang Tag Generator: Create Hreflang Tags Online
• Image Eraser: Remove Objects from Photos Online
• JSON Escaper: Escape & Unescape JSON Strings Online
• PPTX Viewer: Open PowerPoint Files Online
• Security Headers: Inspect HTTP Policies and Scan Limits
• State Machine Designer: Build Finite State Machines Online

Guides 4

• Robots.txt Generator: Create a Robots.txt File Online
• SSL Certificate Checker: Verify HTTPS & Expiry Online
• Video Resizer Guide: Dimensions, WebM Export, and Audio Limits
• XML Sitemap Generator: Create a Sitemap.xml Online

Guides 1

• How AI Agents Discover and Call Paid APIs: A Practical x402 Buyer's Guide

New tools 1

• Markdown Table to Image Paste a Markdown table and export it as a high-resolution PNG, JPG, or SVG. Customise theme, fonts, and padding. Great for shipping tables in slides and tweets.

Guides 1

• GEO Audit Guide: Check Content, Crawling and Search Eligibility

New tools 1

• GEO Analyzer Score any URL for AI search visibility. Checks crawler access for 16 AI bots (GPTBot, ClaudeBot, PerplexityBot, Google-Extended), llms.txt, schema stacking, listicle format, E-E-A-T signals, and 20+ technical checks. Includes compare mode.

New tools 1

• A2UI Lab Interactive playground for Google's A2UI protocol. Build, validate, and prompt declarative agent UIs with surface updates, data models, and the Lit-based renderer. JSONL streaming included.

New tools 2

• LLM System Requirements Calculator Estimate VRAM, RAM, and disk space for running open-source LLMs locally (Llama, Mistral, Qwen, DeepSeek, Gemma, Phi) across quantization levels.
• SBA Loan Calculator Calculate SBA 7(a), 504, and Express loan payments. Includes guarantee fees, amortization, and effective APR.

Guides 2

• SBA Loan Calculator: Estimate Payments and Check Fee Assumptions
• Make a Website AI-Agent Ready: Discovery and Permission Checks

New tools 6

• AI Agent Starter Guide Interactive learning playground for AI coding agents. Master Claude Code, GitHub Copilot, Cursor, Gemini, Codex, and Windsurf through hands-on simulated exercises, prompting techniques, and real-world workflows.
• DNS & WebRTC Leak Test Check if your VPN is leaking your real IP address through DNS or WebRTC side channels.
• Email Header Analyzer Trace email routing, list the IP address of each hop, and verify SPF/DKIM/DMARC authentication.
• Image to ASCII Video Convert any image into an animated ASCII art or emoji mosaic video clip. Choose from 6 animation styles, customize colors and density, and export as a shareable WebM video.
• IP Blacklist Checker Check if an IP is listed on 5 DNSBL blocklists: Barracuda, SpamCop, UCEPROTECT, JustSpam and PSBL.
• What Is My IP Find your public IP address, location, ISP, and connection details.

Guides 2

• AI Coding Agent Guide: Context, Instructions and Review
• What Is My IP Address? Public IP and Geolocation Guide

New tools 1

• Claude Code Usage Analyzer Analyze your Claude Code token usage, costs, and session data locally. Drop your JSONL files and get instant charts. 100% private, nothing leaves your browser.

New tools 13

• Bot Crawl Checker Check whether your site's robots.txt allows or blocks a URL for 24 search engine crawlers, AI bots, and social media bots, with the deciding rule.
• Crypto Testnet Faucets Directory of blockchain testnet faucets. Get test ETH, USDC, SOL for Ethereum, Base, Arbitrum, Solana and more. MetaMask configs included.
• FAQ Schema Generator Generate valid FAQPage JSON-LD structured data for Google rich results. Add question-answer pairs, preview how they appear in search, validate content, and export ready-to-use markup.
• H1 Checker — Heading Structure Analyzer Paste a page's HTML to check its H1 and full H1-H6 hierarchy: missing or duplicate H1s, skipped levels, empty headings and outline problems. No signup.
• Hreflang Tag Generator Generate correct hreflang tags for multilingual and multi-region websites. Output as HTML link tags, HTTP headers, or XML sitemap format. Validates self-referencing, reciprocal links, and x-default usage.
• Keyword Density Checker Analyze keyword density and frequency in your content. Check 1-gram, 2-gram, and 3-gram phrases with density percentages. Optimize your content for SEO without over-stuffing keywords.
• Open Graph Preview & Debugger Preview how your website looks when shared on Facebook, Twitter/X, LinkedIn, Discord, Slack, and WhatsApp. Validate Open Graph and Twitter Card meta tags with real-time social card previews.
• SEO Title & Description Writer Write and optimize SEO titles and meta descriptions with real-time character and pixel width counters. Preview Google SERP snippets, detect power words, calculate emotional marketing value, and compare A/B variants side by side.
• SERP Preview Preview how your page will look in Google search results. Edit title, description, and URL with live rendering, pixel-width counters, and competitor comparison mode.
• Structured Data Tester Validate JSON-LD structured data and Schema.org markup. Check required and recommended properties, rich result eligibility, and syntax errors. alternative to Google Rich Results Test.
• Teleprompter web-based teleprompter with adjustable scroll speed, fullscreen mode, mirror flip, and keyboard shortcuts. Perfect for speeches, presentations, video recordings, and live streaming.
• URL Slug Generator Generate clean, SEO-friendly URL slugs from any text. Supports bulk mode, stop word removal, Unicode transliteration, custom separators, and full URL preview with CSV export.
• XML Sitemap Generator Generate valid XML sitemaps instantly. Add URLs manually or import from CSV, set priority, change frequency, and last modified dates. online sitemap builder with sitemap index support for large sites.

Guides 2

• Bot Crawl Checker: Test HTTP Access and Robots Rules
• Testnet Faucets: Find Test Tokens and Check Network Details

New tools 3

• Yoyo Component Generator Generate Yoyo PHP component boilerplate with properties, actions, events, computed properties, and lifecycle hooks. Supports PHP, Blade, and Twig templates.
• Yoyo Config Generator Generate Yoyo PHP framework bootstrap and configuration code for PHP, Blade, or Twig with vanilla PHP or Laravel integration.
• Yoyo Loading State Builder Build Yoyo spinning and loading state attributes interactively with show/hide, CSS class toggling, attribute setting, and live preview.

New tools 3

• Cloudflare Cost Calculator Estimate monthly Cloudflare developer platform costs across Workers, R2, D1, KV, Durable Objects, and 13 more products. Compare vs paid tiers.
• CSS Animation Generator Create custom CSS animations with a visual keyframe timeline editor. Design, preview, and export as CSS, Tailwind, React, or Framer Motion code.
• SVG Animation Generator Create animated SVGs with a visual editor. Animate SVG elements with transforms, opacity, color, and path animations. Export as animated SVG or CSS code.

New tools 2

• Code Diff Checker Compare two code snippets side by side and highlight every difference with line numbers.
• Image Eraser Remove unwanted objects from photos using AI. Browser-based, no upload needed.

Guides 1

• x402 Config Generator: Create and Verify Payment Middleware

New tools 3

• dnpm Configurator Generate a secure Docker-based npm wrapper that sandboxes installs and builds. Blocks supply chain attacks like the axios RAT.
• x402 Config Generator Generate x402 payment middleware code for Express, Hono, Next.js, Fastify, Gin, FastAPI, Flask, and client SDKs. Configure routes, pricing, and networks visually.
• Yolobox Configurator Generate.yolobox.toml configs and CLI commands for running AI coding agents in isolated containers. Supports Claude, Codex, Gemini, and more.

Guides 2

• Yolobox Configurator: Generate AI Sandbox Configs in Seconds
• dnpm Guide: Isolate npm Commands with Docker

New tools 2

• Image to Puzzle Turn any photo into a playable jigsaw puzzle with realistic interlocking pieces. Choose grid size, difficulty, and solve with drag-and-drop. online puzzle maker.
• Lottie Editor Edit Lottie animations in your browser with GPU-accelerated Skia rendering. Modify colors, text, opacity and export modified JSON. no signup.

New tools 3

• AI Model Picker Pick the right AI model for your task. Compares GPT-4, Claude, Gemini, Llama, Mistral, and others by capability, context window, latency, and price. Filter by use case and benchmark.
• Photo Calendar Create a beautiful visual monthly journal by adding photos to calendar dates. Export as PNG or PDF for printing. Works offline with no uploads.
• Sticker Maker Turn any photo into a custom sticker with decorative borders, stamp edges, shapes, and transparent backgrounds. Download as PNG for WhatsApp, Telegram, iMessage, or print.

Guides 9

• Base64 Encoding and Decoding: Padding, UTF-8 and URL Safety
• UUID Versions Explained: Choose v1, v4 or v7
• BMI Calculator Guide: Formula, Adult Categories and Limits
• Mortgage Payment Calculator: Formula, Costs and Assumptions
• QR Code Generator Guide: Content, Size and Scan Checks
• Password Generator Guide: Randomness, Length and Passphrases
• Merge PDF Files: Reorder Pages and Review the Combined Document
• Regex Tester: Patterns, Flags, Groups and Backtracking
• How to Trim Video Online: Keyframes, Quality, and Export Limits

New tools 1

• ASCII Diagram Generator AI-powered ASCII diagram generator. Describe diagrams in plain English, get publication-ready Unicode box-drawing diagrams. Supports flowcharts, sequence, ER, architecture diagrams and more.

New tools 1

• WVW Store Checker Check if your apps.json is synced with World Vibe Web app store. Compare app listings, detect missing apps, and see next update countdown.

New tools 1

• UML Diagram Editor Create UML diagrams with a live PlantUML editor. Write code and instantly preview sequence, class, activity, state, and component diagrams.

Guides 1

• UML Diagram Editor Online — Free PlantUML & Mermaid Editor with AI

New tools 2

• Windows Update Settings Generator Generate .reg files, PowerShell scripts, and batch files to control Windows Update behavior. Disable auto-updates, block restarts, manage driver updates.
• WVW Apps.json Generator Create and validate apps.json files for wvw.dev (World Vibe Web). Visual form builder for app store listings.

Guides 1

• Windows Update Settings: Registry and PowerShell Guide

New tools 1

• System Architecture Diagram Designer Design and visualize software system architectures with drag-and-drop components. Create diagrams with servers, databases, APIs, message queues, containers, and more.

New tools 9

• Decision Tree Builder Build interactive decision trees with yes/no branches. Visualize decision logic and export flowcharts.
• ER Diagram Designer Design entity-relationship diagrams visually. Create database schemas with tables, columns, and relationships.
• Load Balancer Design Tool Visually design load balancer architectures and generate Nginx, HAProxy, and Caddy configuration files.
• Mind Map Maker Create beautiful mind maps with drag-and-drop nodes. Brainstorm ideas, organize thoughts, and export your mind maps.
• Port Reference Guide Interactive reference for common TCP/UDP network ports with security ratings, filtering, and detailed notes.
• State Machine Designer Design finite state machines with states and transitions. Visualize automata and export state diagrams.
• Subnet Calculator Calculate IPv4 subnet details including network address, broadcast, subnet mask, wildcard, and usable host range from CIDR notation.
• WHOIS Lookup Look up domain registration details including registrar, creation date, expiry, nameservers, and DNSSEC status.
• Workflow Builder Build business process workflows visually. Add process steps, decisions, and conditions with drag-and-drop.

Guides 1

• Load Balancer Design: Nginx, HAProxy, and Caddy Configs

New tools 2

• Markdown to PDF Convert Markdown to PDF with custom background, headers, images, and fonts. Generate styled PDF documents in your browser.
• Markdown to Word Convert Markdown to Word (.docx) with custom background, headers, images, and fonts. Download professional documents instantly.

New tools 1

• Vision Board Create a beautiful vision board to visualize your goals and dreams with text, drawings, images, and progress tracking.

Guides 1

• Create an Online Vision Board: Arrange Goals and Images

New tools 18

• 3D Function Plotter Plot 3D mathematical functions z=f(x,y) with interactive surface visualization and color mapping.
• 3D Geometry Visualizer Explore and visualize 3D geometric shapes interactively with wireframe, edges, and real-time calculations.
• 3D Model Viewer Upload and inspect GLTF/GLB 3D models with material inspector, animation player, and geometry stats.
• 3D Rotation Visualizer Convert between Euler angles, quaternions, and rotation matrices with live 3D preview.
• 3D Vector Visualizer Visualize 3D vectors, calculate dot and cross products, angles, and projections interactively.
• Chmod Calculator Calculate Linux/Unix file permissions with visual grid. Convert between numeric (644) and symbolic (rw-r--r--) formats.
• Color Name Finder Find color names from hex codes or search colors by name. Browse all CSS named colors with live previews.
• Country Lookup Search countries by name, currency, timezone, or capital. Get detailed info cards with flags and contact details.
• Duplicate Line Remover Remove duplicate lines from text. Options for case sensitivity, whitespace trimming, sorting, and keeping first or last occurrence.
• Emoji Finder Search 3,700+ emojis with fuzzy search. Find by keyword, copy with one click. Includes skin tone variants.
• Font Icon Search Search icons from FontAwesome, Material Icons, Lucide, and Heroicons by name or keyword. Find the perfect icon instantly.
• Glob Pattern Tester Test glob patterns against file lists in real-time. Supports *, **,?, character classes, and brace expansion.
• HTML Entity Finder Search HTML entities and special characters by name or description. Copy entity codes, hex codes, and characters instantly.
• HTTP Status Code Lookup Search HTTP status codes by number or description. Get explanations, use cases, and solutions for every status code.
• Keyboard Shortcut Finder Find keyboard shortcuts for VS Code, Chrome, Excel, Photoshop and more. Search by action name with Mac and Windows keys.
• MIME Type Finder Search MIME types by file extension or content type. Find the right MIME type for any file format.
• PBR Material Previewer Preview PBR texture maps on 3D shapes with tiling controls and environment lighting.
• Text Find & Replace Find and replace text with regex support, case sensitivity, whole word matching, and live match highlighting.

Guides 21

• Chmod Calculator: Read Linux File Permission Values
• Remove Duplicate Lines: Case, Whitespace and Order
• Glob Pattern Tester: Match Paths and Check Pattern Rules
• Find and Replace Text Online: Free Tool with Regex Support
• 3D Function Plotter: Surface Equations, Domains and Resolution
• 3D Geometry Visualizer: Shapes, Volumes and Euler’s Formula
• GLTF and GLB Viewer: Inspect 3D Models in Your Browser
• Euler to Quaternion: Convert and Check 3D Rotations
• 3D Vector Visualizer: Dot Products, Cross Products and Angles
• Color Name Finder: Match Names and HEX Values
• Country Lookup: Search Names, Codes, Currencies and Time Zones
• E.164 Phone Number Validator: Format and Numbering Limits
• Emoji Finder: Search Keywords, Copy Symbols and Check Variants
• Find and xargs Cheatsheet: Commands and Web Tool Alternatives
• Font Icon Search: Compare Names Across Icon Libraries
• HTML Entity Finder — Search Special Characters and Entity Codes
• HTTP Status Code Lookup: Meanings, Examples, and Limits
• Keyboard Shortcut Finder: Search by App and Platform
• MIME Type Finder — Search File Types and Content Types by Extension
• PBR Material Previewer Online: View Texture Maps on 3D Shapes Free
• SVG Path Visualizer: How to View, Edit & Optimize SVG Paths Online

New tools 2

• Course Quiz Generator Create course quizzes with LaTeX formula support. Export as PDF or Word for classroom use.
• Visual JSON Editor Edit JSON visually with drag-and-drop reordering, inline editing, type conversion, and undo/redo.

Guides 2

• Course Quiz Generator: Questions, LaTeX and Answer Keys
• Visual JSON Editor — Edit JSON with Drag & Drop, Tree View, and Diff

New tools 2

• JSON to PDF Renderer Render JSON specifications as professionally formatted PDF documents in your browser.
• Math Expression Generator Render LaTeX math expressions beautifully with 40+ formula templates. Export as PNG.

Guides 3

• Grade Calculator: Weighted Scores and Final Exam Targets
• JSON to Markdown Table: Select Columns and Escape Cell Values
• JSON to PDF Guide: Build Documents and Check Export Limits

Guides 6

• JQ Playground Online: How to Query & Transform JSON with jq Filters
• JSON Path Finder Online: How to Query JSON with JSONPath Expressions
• Product Cards from JSON: Fields, Templates, and Export
• Profile Card Generator: Team and Speaker Data from JSON
• Social Cards from JSON: Templates, PNG Export, and Metadata
• Testimonial Card Generator: Quotes, Ratings, and Attribution

Guides 25

• JSON Formatter and Beautifier: Format and Check JSON
• Online Developer Tools: Choose a Tool for Each Code Task
• Online Image Tools: Resize, Compress, Convert and Remove Metadata
• Online JSON Tools: Format, Validate, Compare and Convert
• Online PDF Tools: Choose Conversion, Compression or Page Editing
• Online Security Tools: Passwords, Encryption and Hash Checks
• Compare Code Files: Read Line Differences and Whitespace Changes
• JSON Diff: Compare Nested Objects, Arrays and Values
• Compress Images: Balance File Size and Visible Quality
• Compress PDF Files: Reduce Size and Check Image Quality
• Convert Image Formats: Choose JPEG, PNG, WebP or AVIF
• Word and PowerPoint to PDF: Conversion and Layout Checks
• Edit a PDF Online: Add Text, Images and Annotations
• Encrypt and Decrypt Text: Passwords, AES-GCM and Output Format
• Format Code Online: JSON, JavaScript, HTML and CSS
• Generate Random Passwords: A Creation and Storage Workflow
• Hash Text and Files: Checksum Algorithms and Verification Limits
• Merge and Split PDFs: Choose a Page Assembly Workflow
• Remove EXIF Metadata: Export and Verify a Photo Copy
• Resize Images: Set Pixel Dimensions and Keep the Aspect Ratio
• Password Strength Checker: Read Scores and Estimate Limits
• JSON Conversion Tools: Convert JSON to CSV, YAML, XML and More Online
• JSON Schema Validation: Rules, Examples, and Tool Limits
• Regex Patterns and Testing: Examples and Common Mistakes
• SQL Formatting and Validation: Format and Validate SQL Queries Online

New tools 2

• Site to Markdown Turn a web page's HTML, pasted or saved as a file, into clean Markdown without its navigation, scripts and footer.
• Word to PDF Converter Convert Word documents (.docx) to PDF and download as ZIP. 100% browser-based.

New tools 1

• PPTX to PDF Converter Convert PowerPoint presentations to PDF or images. 100% browser-based, no upload required.

New tools 4

• Photo Editor Create stunning images with text, stickers, and filters. No watermark!
• Photo Measurement Measure real-world objects from photos using reference calibration.
• Slide Deck Builder Create stunning presentations with text, images, and shapes. Export to PDF, PNG, or GIF.
• Spreadsheet Editor Edit CSV and Excel files directly in your browser without uploading to any server.

New tools 6

• Caption Generator Build social captions from templates in five tones with hashtags and a call to action. No AI model.
• LinkedIn Post Generator Draft LinkedIn posts from templates for hooks, stories, tips, and lists.
• Social Media Bio Generator Create compelling bios for Instagram, Twitter, TikTok, LinkedIn, and YouTube.
• Social Media Calendar Generator Plan your social media content with weekly or monthly posting schedules.
• Thread Generator Write a Twitter/X thread tweet by tweet with 280-character counts, and copy it numbered 1/N.
• YouTube Description Generator Create optimized YouTube video descriptions with timestamps, links, and SEO keywords.

Guides 2

• Merge Grant Proposal PDFs: Budgets, Timelines, and Support Letters
• Prepare Client PDFs: Remove Draft Pages and Check Hidden Data

New tools 75

• Audio Format Converter Convert audio between MP3, WAV, OGG, and FLAC formats.
• Audio Metadata Extractor Extract metadata, duration, and codec info from audio files.
• Audio Resampler Change audio sample rate for compatibility or quality.
• Audio Trimmer Cut and trim audio files to specific timestamps.
• Body Fat Calculator Estimate body fat percentage using the Navy method or BMI estimation.
• Break-Even Calculator Calculate your break-even point to understand when your business becomes profitable.
• Business Loan Calculator Calculate business loan payments, interest, and effective APR. Compare SBA loans, equipment financing, and term loans.
• Carbon Footprint Calculator Calculate your annual carbon footprint from home energy, transportation, and lifestyle choices.
• ChatGPT Screenshot Generator Create realistic mock ChatGPT conversations with custom messages and styling.
• Client Status Report Generator Generate professional status reports for clients. Track completed work, blockers, and next goals with custom branding.
• Code Screenshot Generator Create beautiful code screenshots with syntax highlighting, themes, and customizable backgrounds.
• Dev Request Prioritizer Prioritize development requests using weighted scoring. Track analysis, estimate effort, see what to build next.
• Diff Checker Compare two texts side by side and highlight differences at character, word, or line level.
• Dividend Calculator Calculate dividend income, yield on cost, and growth with DRIP reinvestment. Plan your passive income from dividend stocks.
• Essay Outline Generator Generate structured outlines for essays with introduction, body, and conclusion.
• EXIF Remover Remove metadata from photos to protect your privacy. Strip GPS, camera info, and timestamps.
• Extract Audio from Video Extract audio tracks from video files as MP3 or WAV.
• FIRE Calculator Calculate your FIRE number for Financial Independence, Retire Early. Plan Lean FIRE, Fat FIRE, or Coast FIRE based on savings rate.
• Home Affordability Calculator Calculate how much house you can afford based on income, debts, and DTI ratio. Get a realistic home buying budget.
• Image Color Extractor Extract dominant colors from images and export as HEX, RGB, CSS, or Tailwind.
• iMessage Chat Generator Create realistic mock iMessage conversations with iOS-style bubbles and reactions.
• Instagram Post Generator Create realistic mock Instagram posts with likes, comments, and custom profiles.
• JSON to Chart Generate interactive charts from JSON data.
• JSON to Email Template Generate HTML email templates from JSON data.
• JSON to Invoice Render an invoice from JSON line items as a PNG or HTML. For a PDF, use the Finance Invoice Generator.
• JSON to Org Chart Create organizational hierarchy charts from JSON data.
• JSON to Pricing Table Create professional pricing tables from JSON configuration.
• JSON to Product Card Turn product JSON into a store card with price, rating and stock badges.
• JSON to Profile Card Turn a person's JSON into a team-page profile card with avatar and links.
• JSON to README Generate README.md files from JSON project data.
• JSON to Resume Create professional resumes from JSON data.
• JSON to Social Card Turn a post's JSON into a 1200:630 social card for link previews.
• JSON to Testimonial Card Turn a customer quote in JSON into a testimonial card with a star rating.
• JSON to Timeline Create visual timelines from JSON event data.
• JSON to TypeScript Convert JSON to TypeScript interfaces or type aliases with customizable options.
• JSON YAML Converter Convert between JSON and YAML formats instantly with syntax validation.
• Markdown Table Generator Create markdown tables visually with import from CSV, JSON, and Excel support.
• Media Info Viewer Extract EXIF data, GPS location, and camera info from images, videos, and audio files.
• One Rep Max Calculator Estimate your 1RM for any lift using proven formulas with training weight recommendations.
• Phone Number Validator Validate and format phone numbers from any country with E.164 and international formats.
• Privacy Policy Generator Generate GDPR, CCPA, and COPPA compliant privacy policies for your website or app.
• Profit Margin Calculator Calculate profit margin and markup percentage. Understand margin vs markup difference and set profitable pricing for your business.
• Purchase Order Generator Create professional purchase orders (PO) online. Add vendor details, line items, shipping info, and download as PDF.
• Readability Calculator Analyze text readability with Flesch-Kincaid, Gunning Fog, and SMOG formulas.
• Refinance Calculator Calculate mortgage refinance savings and break-even point. Compare current vs new loan to determine if refinancing is worth it.
• Research Title Generator Create compelling academic research paper titles in multiple styles.
• Retro Meeting Run engaging sprint retrospectives with anonymous feedback. Reveal items one by one and vote on action items.
• Robots.txt Generator Generate valid robots.txt files for SEO with crawler rules and sitemap support.
• Scope Creep Tracker Track and visualize project scope changes over time. Monitor original scope vs additions and generate reports.
• Self-Employment Tax Calculator Calculate self-employment tax (15.3%), income tax, and quarterly estimated payments for freelancers, contractors, and gig workers.
• Sleep Calculator Calculate optimal bedtime and wake times based on 90-minute sleep cycles.
• Sprint Capacity Calculator Calculate your team's realistic sprint capacity accounting for meetings, PTO, holidays, and historical velocity.
• Stock Average Calculator Calculate stock average cost basis using dollar cost averaging (DCA). Track multiple purchases and see your break-even price.
• Subtitle Extractor Extract subtitle tracks from MKV and MP4 video files.
• SVG Path Visualizer Visualize and edit SVG path data with real-time preview and command breakdown.
• TDEE Calculator Calculate your Total Daily Energy Expenditure based on BMR and activity level for weight management.
• Technical Debt Register Track, prioritize, and communicate technical debt. Log debt items with severity and effort, calculate interest cost.
• Text Line Sorter Sort lines A to Z, by length, numerically, reversed, or shuffled. Trim and dedupe options.
• Text Summarizer Shorten a text by extracting its key sentences. Extractive, not generative, so every sentence is from the source.
• Thesis Statement Generator Create strong thesis statements for essays and research papers.
• Timesheet Calculator Calculate hours worked, overtime pay, and total earnings. Track time for payroll, freelance billing, and contractor invoicing.
• Travel Budget Calculator Plan your trip expenses including flights, hotels, food, and activities. Get a complete cost breakdown.
• Twitter/X Post Generator Create realistic mock Twitter/X posts with likes, retweets, and custom engagement.
• Video Compressor Reduce video file size while maintaining quality. Privacy-focused.
• Video Format Converter Convert videos between MP4, WebM, and MKV formats.
• Video Metadata Extractor Extract duration, resolution, codecs, and metadata from videos.
• Video Resizer Change video resolution and dimensions. Browser-based processing.
• Video Rotator Rotate videos 90, 180, or 270 degrees instantly.
• Video to GIF Converter Convert video clips to animated GIFs directly in your browser.
• Video Trimmer Cut and trim video clips to specific timestamps. No upload required.
• Voice Recorder Record audio from your microphone and save it as a WebM file.
• Water Intake Calculator Calculate your optimal daily water intake based on weight, activity, and climate.
• WhatsApp Chat Generator Create realistic mock WhatsApp conversations with read receipts and timestamps.
• XML Formatter Beautify and minify XML documents with syntax validation.
• YAML Validator Validate and format YAML files with syntax checking for Kubernetes and DevOps.

New tools 156

• 2FA Code Tester Test and verify TOTP two-factor authentication codes from your authenticator app.
• Age Calculator Calculate exact age in years, months, and days.
• Amortization Calculator Generate loan amortization schedules showing principal and interest breakdown. See how extra payments save money and shorten loan term.
• API Docs Generator Generate API documentation in Markdown or OpenAPI format.
• Aspect Ratio Calculator Calculate and convert aspect ratios for images and videos.
• Attendance Sheet Generator Generate printable attendance tracking sheets for classes.
• Auto Loan Calculator Calculate car loan payments, total interest, and amortization. Factor in down payment, trade-in value, and sales tax.
• Barcode Generator Generate barcodes in Code128 and Code39 formats.
• Base64 Encoder Encode and decode text or files to Base64 format.
• BMI Calculator Calculate your Body Mass Index and understand your weight category.
• Box Shadow Generator Create beautiful CSS box shadows with presets.
• Career Experience Calculator Calculate your total professional experience across multiple jobs.
• Case Converter Switch text case: upper, lower, title, camelCase.
• Character Counter Count characters with and without spaces and check the limits for X, Instagram, LinkedIn, YouTube, and meta tags.
• Citation Generator Generate APA, MLA, Chicago, Harvard citations.
• Color Converter Convert HEX, RGB, HSL and generate palettes.
• Color Palette Generator Generate harmonious color palettes from any color.
• Compound Interest Calculator Calculate compound interest with daily, monthly, or annual compounding. Visualize investment growth and wealth accumulation over time.
• Contrast Checker Check color contrast for WCAG accessibility.
• Cookie Analyzer Analyze browser cookies for security attributes like Secure, HttpOnly, and SameSite.
• Countdown Timer Set countdown timers for events, deadlines, and special occasions.
• Credit Card Payoff Calculator Calculate credit card payoff time and total interest. See how extra payments can help you become debt-free faster.
• Cron Expression Generator Build and validate cron expressions with a visual editor.
• CSS Minifier Minify or beautify CSS code for production.
• CSV Column Extractor Extract specific columns from CSV files and download filtered data.
• CSV Merger Merge multiple CSV files into one. Combine vertically or horizontally.
• CSV to Excel Convert CSV files to Excel format (.xlsx) online.
• CSV Viewer View, search, sort, and filter CSV files online.
• cURL to Code Convert cURL commands to JavaScript, Python, PHP, Go, Ruby, and Node.js code.
• Daily Habit Calculator Track how your daily habits add up over time.
• Data Sanitizer Sanitize user input for HTML, SQL, XSS, and other security threats.
• Date Difference Calculator Calculate the difference between two dates in days, weeks, months.
• Debt Payoff Calculator Create a debt payoff plan using avalanche or snowball methods. Calculate payoff time, interest saved, and track progress to debt freedom.
• DNS Lookup Perform DNS lookups to find A, AAAA, MX, CNAME, NS, TXT, SOA records for any domain.
• DNS Security Scanner Scan DNS records for security configurations including SPF, DKIM, and DMARC.
• Down Payment Calculator Calculate home down payment amounts and PMI costs. Compare 3%, 5%, 10%, and 20% down payment options and savings timelines.
• Education Suite All-in-one teacher dashboard for student management, attendance, report cards, and more.
• Email Security Checker Verify email domain security with SPF, DKIM, DMARC, and MTA-STS checks.
• Email Signature Generator Create professional email signatures for Gmail, Outlook, and other clients.
• Email Validator Validate email addresses for proper format and syntax.
• Favicon Generator Generate favicons and app icons for all platforms.
• File Hash Calculator Calculate MD5, SHA-1, SHA-256, SHA-512 checksums for files.
• Flashcard Maker Create digital flashcards for studying and memorization.
• Form to JSON Schema HTML form in, JSON Schema out: field names, types and validation read from the markup.
• Glassmorphism Generator Create trendy glass-effect UI components.
• GPA Calculator Calculate your grade point average easily.
• Grade Calculator Calculate weighted grades and target scores.
• Gradient Generator Create beautiful CSS gradients with live preview.
• GraphQL Schema Validator Validate GraphQL schema definitions for errors.
• GraphQL to TypeScript Generate TypeScript types from GraphQL schemas.
• HAR to cURL Convert HAR files to cURL commands for debugging.
• Hash Comparison Tool Compare file or text hashes to verify integrity using SHA-256, SHA-512, and more.
• Hashtag Generator Generate relevant hashtags from a built-in keyword database for Instagram, X, TikTok, and more. Rule-based, no live trend data.
• HMAC Generator Generate HMAC signatures for message authentication.
• HTML Formatter Beautify and minify HTML code with syntax highlighting.
• HTML Table to JSON Convert HTML tables to JSON arrays or objects.
• HTML to Markdown Convert HTML code to Markdown format instantly.
• Image Caption Maker Add captions and text overlays to your images.
• Image Compressor Reduce JPEG, PNG, WebP and AVIF file sizes with adjustable quality, or lossless PNG.
• Image Converter Convert images between PNG, JPG, WebP, GIF formats.
• Image Resizer Resize an image by percentage, to exact pixels, or to social media presets for Instagram, Facebook, X, LinkedIn, YouTube and more.
• Image to Base64 Convert images to Base64 encoded strings for embedding.
• Inflation Calculator Calculate purchasing power and the real value of money over time using historical CPI data. See how inflation affects your savings.
• Internet Speed Test Test your internet download and upload speeds.
• Investment Calculator Calculate investment growth with compound interest and monthly contributions. Project future value of stocks, bonds, and retirement accounts.
• Invoice Generator Create professional invoices online. Add line items, taxes, and download as PDF. Perfect for freelancers and small businesses.
• IP Address Lookup Look up the location and ISP of an IP address: your own for free, other addresses with an IPFast API key.
• JQ Playground Online jq playground to test, filter, and transform JSON data with jq expressions. Real-time results, built-in examples, and cheat sheet.
• JSON Diff Compare two JSON objects and highlight differences semantically.
• JSON Escaper Escape and unescape JSON strings for embedding in code.
• JSON Faker Generate realistic fake JSON data with names, emails, addresses, and 40+ field types.
• JSON Formatter Validate, format, and minify JSON data instantly.
• JSON Path Finder Explore JSON interactively and find JSONPath expressions.
• JSON Schema Form Builder Add fields and validation visually, then export the JSON Schema; the schema is the output, not a form.
• JSON Schema Generator JSON sample in, Draft-07 schema out: types, formats and nesting detected from the data.
• JSON Schema Validator Validate JSON data against JSON Schema Draft-07 specifications.
• JSON to CSV Convert JSON data to CSV format for spreadsheets and databases.
• JSON to Form Turn a JSON field list into HTML, Tailwind, Bootstrap 5 or React form code.
• JSON to Go Struct Convert JSON to Go struct definitions with JSON tags and type inference.
• JSON to Java Class Generate Java POJO classes from JSON with Lombok and validation support.
• JSON to Markdown Table Transform JSON arrays into GitHub-flavored Markdown tables.
• JSON to Python Class Create Python dataclasses or Pydantic models from JSON data.
• JSON to URL Params Convert JSON objects to URL-encoded query parameters.
• JSON to XML Convert JSON data to XML format with customization.
• JSON to Zod Schema Generate Zod validation schemas from JSON data with type inference.
• JSON-LD Generator Generate structured data markup for SEO with JSON-LD format.
• JWT Decoder Decode and inspect JSON Web Tokens (JWT) instantly.
• Lesson Plan Template Create structured lesson plans with objectives and activities.
• Loan Calculator Calculate monthly loan payments, total interest, and amortization schedules for personal loans, mortgages, and auto loans.
• Lorem Ipsum Generator Generate placeholder text for your designs and layouts.
• Macro Calculator Calculate daily protein, carbs, and fat needs for your fitness goals.
• Markdown Previewer Write and preview Markdown with live rendering.
• MD5 Hash Generator Generate MD5, SHA-1, SHA-256 hashes from text.
• Meta Tag Generator Generate the SEO meta tags, Open Graph and Twitter Card markup for your page head, with a live search preview to check the result. No signup required.
• Mortgage Calculator Calculate monthly mortgage payments, total interest, and loan-to-value ratio. Plan your home purchase with accurate payment estimates.
• Net Worth Calculator Calculate your net worth by adding assets and subtracting liabilities. Track financial health and debt-to-asset ratio over time.
• Number Base Converter Convert numbers between binary, decimal, hexadecimal, and octal.
• OpenAPI Validator Check the required structure of OpenAPI 3.x and Swagger 2.0 documents. Not a Spectral-style lint.
• Password Breach Checker Check if your passwords have been exposed in known data breaches using k-Anonymity.
• Password Generator Create strong, secure passwords with customizable rules.
• Password Pattern Validator Validate passwords against custom patterns, common passwords, and entropy requirements.
• Password Strength Checker Analyze password security and get improvement suggestions.
• PDF Compress Reduce PDF file size while maintaining quality.
• PDF Delete Pages Remove unwanted pages from your PDF documents.
• PDF Editor All-in-one PDF tool: merge, split, rotate, delete, compress, organize.
• PDF Merger Combine multiple PDF files into one document securely.
• PDF Organize Drag and drop to reorder, rotate, or remove PDF pages.
• PDF Rotate Rotate PDF pages by 90, 180, or 270 degrees.
• PDF Split Split PDF files into multiple documents by page selection.
• PDF to Image Convert PDF pages to high-quality images instantly.
• Percentage Calculator Calculate percentages, increases, and decreases.
• Placeholder Image Generator Create placeholder images with custom sizes and colors.
• Pomodoro Timer Boost productivity with timed work sessions.
• Postman to cURL Convert Postman collections to cURL commands.
• Privacy Policy Checker Analyze privacy policies for data collection, user rights, and compliance issues.
• QR Code Generator Generate QR codes for URLs, text, Wi-Fi, and vCards.
• Quiz Maker Create interactive quizzes with multiple question types.
• Random Key Generator Generate secure random keys for APIs and encryption.
• Random Name Picker Pick a raffle or giveaway winner from a pasted list, with a winner history. Crypto-random and fair.
• Random Picker Generate random numbers, pick from a list, or split a group into teams. Crypto-random and fair.
• Reading Time Estimator Estimate reading and speaking time at slow, average, and fast words-per-minute presets.
• Regex Tester Test and debug regular expressions with real-time matching.
• Relationship Calculator Calculate how long you've been together as a couple.
• Report Card Generator Create student report cards with GPA calculation.
• Retirement Calculator Plan your retirement with 401(k), IRA projections and the 4% withdrawal rule. Calculate if you are on track for retirement goals.
• ROI Calculator Calculate return on investment (ROI) for stocks, real estate, and business investments. Compare simple and annualized returns.
• RSA Encryption Tool (PEM) Generate RSA key pairs as PEM and encrypt or decrypt a short message with RSA-OAEP. Not OpenPGP.
• Rubric Generator Create grading rubrics for assessments and evaluations.
• Salary Calculator Convert salary between hourly, daily, weekly, bi-weekly, monthly, and annual rates. Calculate your true hourly wage.
• Savings Calculator Calculate savings growth with compound interest and regular contributions. Plan your emergency fund, retirement, or savings goals.
• Scientific Calculator Advanced calculator with trigonometry, logarithms, and scientific functions.
• Screen Resolution Detector Detect your screen resolution, viewport size, and device info.
• Screenshot Tool Capture your screen instantly and download or copy screenshots.
• Seating Chart Maker Create classroom or event seating arrangements visually.
• Secure Note Sharing Create encrypted, self-destructing notes with password protection and expiration.
• Security Headers Analyzer Check HTTP security headers for web applications and get improvement recommendations.
• Signature Generator Create digital signatures and handwritten-style text.
• SQL Formatter Format and beautify SQL queries for readability.
• SSL Certificate Checker Verify SSL/TLS certificates, check expiration dates, and validate chain trust.
• Stopwatch Online timer with lap times and precision.
• Swagger to OpenAPI Convert Swagger 2.0 specs to OpenAPI 3.0 format.
• Text Encryption Encrypt and decrypt text using AES-256 encryption.
• Timezone Converter Convert times between different time zones worldwide.
• Tip Calculator Calculate restaurant tips and split bills easily. Determine 15%, 18%, 20% tips and divide costs among multiple people.
• Tone Analyzer Score tone and sentiment signals with an English keyword lexicon. No AI model.
• Typing Speed Test Test your typing speed and accuracy with 60-second typing challenges.
• Unit Converter Convert length, weight, temperature, and more.
• Unix Timestamp Convert Unix timestamps to human-readable dates.
• URL Encoder/Decoder Encode and decode URLs for safe transmission and parsing.
• URL Safety Checker Analyze URLs for potential security threats and phishing indicators.
• UUID Generator Generate unique identifiers (UUID/GUID) instantly.
• VAT Calculator Calculate VAT and sales tax instantly. Add or remove tax from prices, extract VAT amounts. Works with any tax rate worldwide.
• Video Thumbnail Generator Extract frames from videos as thumbnail images.
• Word Counter Count words, characters, sentences, and paragraphs, with readability scores and keyword density.
• Work Anniversary Calculator Calculate how long you've been working at your job.
• Worksheet Generator Generate printable math and educational worksheets.