All Free Tools
Browse our complete collection of free online tools organized by category. Click any tool to get started instantly.
Developer Tools
71 tools
Load Balancer Design Tool
Visually design load balancer architectures and generate Nginx, HAProxy, and Caddy configuration files.
JSON Formatter
Validate, format, and minify JSON data instantly.
JSON Minifier
Compress JSON by removing whitespace and formatting.
JSON Escaper
Escape and unescape JSON strings for embedding in code.
URL Params to JSON
Parse URL query strings and convert them to JSON objects.
JSON to URL Params
Convert JSON objects to URL-encoded query parameters.
JSON Path Finder
Explore JSON interactively and find JSONPath expressions.
JSON to HTML Form
Generate clean HTML5 forms from JSON schema definitions.
JSON to Tailwind Form
Create Tailwind CSS styled forms from JSON schemas.
JSON to Bootstrap Form
Generate Bootstrap 5 forms from JSON definitions.
JSON to React Form
Create complete React form components from JSON.
Form to JSON Schema
Extract JSON schema from existing HTML forms.
JSON Schema Form Builder
Build form schemas visually without writing JSON.
HTML Formatter
Beautify and minify HTML code with syntax highlighting.
Unix Timestamp
Convert Unix timestamps to human-readable dates.
Base64 Encoder
Encode and decode text or files to Base64 format.
CSS Minifier
Minify or beautify CSS code for production.
SQL Formatter
Format and beautify SQL queries for readability.
JWT Decoder
Decode and inspect JSON Web Tokens (JWT) instantly.
Cron Expression Generator
Build and validate cron expressions with a visual editor.
Regex Tester
Test and debug regular expressions with real-time matching.
Markdown Previewer
Write and preview Markdown with live rendering.
JSON YAML Converter
Convert between JSON and YAML formats instantly with syntax validation.
YAML Validator
Validate and format YAML files with syntax checking for Kubernetes and DevOps.
XML Formatter
Beautify and minify XML documents with syntax validation.
Code Screenshot Generator
Create beautiful code screenshots with syntax highlighting, themes, and customizable backgrounds.
JSON to TypeScript
Convert JSON to TypeScript interfaces or type aliases with customizable options.
JSON to Zod Schema
Generate Zod validation schemas from JSON data with type inference.
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 Python Class
Create Python dataclasses or Pydantic models from JSON data.
JSON Schema Validator
Validate JSON data against JSON Schema Draft-07 specifications.
JSON Schema Generator
Auto-generate JSON Schema from sample JSON data with customizable options.
Mock JSON Generator
Generate realistic fake JSON data with names, emails, addresses, and more.
JSON Diff
Compare two JSON objects and highlight differences semantically.
JSON Comparer
Compare two JSON structures with a git-style unified diff view.
cURL to Code
Convert cURL commands to JavaScript, Python, PHP, Go, Ruby, and Node.js code.
JSON Faker
Generate realistic fake JSON data with names, emails, addresses, and 40+ field types.
JSON Visualizer
Explore JSON data with an interactive tree view and copy JSONPath expressions.
JQ Playground
Free online jq playground to test, filter, and transform JSON data with jq expressions. Real-time results, built-in examples, and cheat sheet.
OpenAPI Validator
Validate OpenAPI 3.x and Swagger 2.0 specifications.
Swagger to OpenAPI
Convert Swagger 2.0 specs to OpenAPI 3.0 format.
GraphQL Schema Validator
Validate GraphQL schema definitions for errors.
GraphQL to TypeScript
Generate TypeScript types from GraphQL schemas.
Postman to cURL
Convert Postman collections to cURL commands.
HAR to cURL
Convert HAR files to cURL commands for debugging.
API Docs Generator
Generate API documentation in Markdown or OpenAPI format.
JSON to PDF Renderer
Render JSON specifications as professionally formatted PDF documents in your browser.
Visual JSON Editor
Edit JSON visually with drag-and-drop reordering, inline editing, type conversion, and undo/redo.
Chmod Calculator
Calculate Linux/Unix file permissions with visual grid. Convert between numeric (644) and symbolic (rw-r--r--) formats.
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.
3D Rotation Visualizer
Convert between Euler angles, quaternions, and rotation matrices with live 3D preview.
ER Diagram Designer
Design entity-relationship diagrams visually. Create database schemas with tables, columns, and relationships.
State Machine Designer
Design finite state machines with states and transitions. Visualize automata and export state diagrams.
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.
WVW Apps.json Generator
Create and validate apps.json files for wvw.dev (World Vibe Web). Visual form builder for app store listings.
UML Diagram Editor
Create UML diagrams with a live PlantUML editor. Write code and instantly preview sequence, class, activity, state, and component diagrams.
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.
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.
Name
Description
dnpm Configurator
Generate a secure Docker-based npm wrapper that sandboxes installs and builds. Blocks supply chain attacks like the axios RAT.
Yolobox Configurator
Generate .yolobox.toml configs and CLI commands for running AI coding agents in isolated containers. Supports Claude, Codex, Gemini, and more.
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.
Cloudflare Cost Calculator
Estimate monthly Cloudflare developer platform costs across Workers, R2, D1, KV, Durable Objects, and 13 more products. Compare free vs paid tiers.
Code Diff Checker
Compare two code snippets side by side and highlight every difference with line numbers.
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.
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.
Crypto Testnet Faucets
Directory of blockchain testnet faucets. Get free test ETH, USDC, SOL for Ethereum, Base, Arbitrum, Solana and more. MetaMask configs included.
Design Tools
21 tools
Photo Editor
Create stunning images with text, stickers, and filters. No watermark!
Color Converter
Convert HEX, RGB, HSL and generate palettes.
Gradient Generator
Create beautiful CSS gradients with live preview.
Contrast Checker
Check color contrast for WCAG accessibility.
Box Shadow Generator
Create beautiful CSS box shadows with presets.
Color Palette Generator
Generate harmonious color palettes from any color.
Glassmorphism Generator
Create trendy glass-effect UI components.
Favicon Generator
Generate favicons and app icons for all platforms.
Image Color Extractor
Extract dominant colors from images and export as HEX, RGB, CSS, or Tailwind.
SVG Path Visualizer
Visualize and edit SVG path data with real-time preview and command breakdown.
Color Name Finder
Find color names from hex codes or search colors by name. Browse all CSS named colors with live previews.
Font Icon Search
Search icons from FontAwesome, Material Icons, Lucide, and Heroicons by name or keyword. Find the perfect icon instantly.
3D Model Viewer
Upload and inspect GLTF/GLB 3D models with material inspector, animation player, and geometry stats.
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.
PBR Material Previewer
Preview PBR texture maps on 3D shapes with tiling controls and environment lighting.
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. Free online puzzle maker.
Lottie Editor
Edit Lottie animations in your browser with GPU-accelerated Skia rendering. Modify colors, text, opacity and export modified JSON. Free, no signup.
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.
Image Eraser
Remove unwanted objects from photos using AI. Browser-based, no upload needed.
Finance Tools
30 tools
Inflation Calculator
Calculate purchasing power and the real value of money over time using historical CPI data. See how inflation affects your savings.
Loan Calculator
Calculate monthly loan payments, total interest, and amortization schedules for personal loans, mortgages, and auto loans.
Invoice Generator
Create professional invoices online for free. Add line items, taxes, and download as PDF. Perfect for freelancers and small businesses.
VAT Calculator
Calculate VAT and sales tax instantly. Add or remove tax from prices, extract VAT amounts. Works with any tax rate worldwide.
Debt Payoff Calculator
Create a debt payoff plan using avalanche or snowball methods. Calculate payoff time, interest saved, and track progress to debt freedom.
Tip Calculator
Calculate restaurant tips and split bills easily. Determine 15%, 18%, 20% tips and divide costs among multiple people.
Compound Interest Calculator
Calculate compound interest with daily, monthly, or annual compounding. Visualize investment growth and wealth accumulation over time.
Mortgage Calculator
Calculate monthly mortgage payments, total interest, and loan-to-value ratio. Plan your home purchase with accurate payment estimates.
Auto Loan Calculator
Calculate car loan payments, total interest, and amortization. Factor in down payment, trade-in value, and sales tax.
Savings Calculator
Calculate savings growth with compound interest and regular contributions. Plan your emergency fund, retirement, or savings goals.
ROI Calculator
Calculate return on investment (ROI) for stocks, real estate, and business investments. Compare simple and annualized returns.
Retirement Calculator
Plan your retirement with 401(k), IRA projections and the 4% withdrawal rule. Calculate if you are on track for retirement goals.
Credit Card Payoff Calculator
Calculate credit card payoff time and total interest. See how extra payments can help you become debt-free faster.
Salary Calculator
Convert salary between hourly, daily, weekly, bi-weekly, monthly, and annual rates. Calculate your true hourly wage.
Investment Calculator
Calculate investment growth with compound interest and monthly contributions. Project future value of stocks, bonds, and retirement accounts.
Amortization Calculator
Generate loan amortization schedules showing principal and interest breakdown. See how extra payments save money and shorten loan term.
Net Worth Calculator
Calculate your net worth by adding assets and subtracting liabilities. Track financial health and debt-to-asset ratio over time.
Down Payment Calculator
Calculate home down payment amounts and PMI costs. Compare 3%, 5%, 10%, and 20% down payment options and savings timelines.
Dividend Calculator
Calculate dividend income, yield on cost, and growth with DRIP reinvestment. Plan your passive income from dividend stocks.
Profit Margin Calculator
Calculate profit margin and markup percentage. Understand margin vs markup difference and set profitable pricing for your business.
Timesheet Calculator
Calculate hours worked, overtime pay, and total earnings. Track time for payroll, freelance billing, and contractor invoicing.
Business Loan Calculator
Calculate business loan payments, interest, and effective APR. Compare SBA loans, equipment financing, and term loans.
Self-Employment Tax Calculator
Calculate self-employment tax (15.3%), income tax, and quarterly estimated payments for freelancers, contractors, and gig workers.
Purchase Order Generator
Create professional purchase orders (PO) online. Add vendor details, line items, shipping info, and download as PDF.
Refinance Calculator
Calculate mortgage refinance savings and break-even point. Compare current vs new loan to determine if refinancing is worth it.
Home Affordability Calculator
Calculate how much house you can afford based on income, debts, and DTI ratio. Get a realistic home buying budget.
FIRE Calculator
Calculate your FIRE number for Financial Independence, Retire Early. Plan Lean FIRE, Fat FIRE, or Coast FIRE based on savings rate.
Stock Average Calculator
Calculate stock average cost basis using dollar cost averaging (DCA). Track multiple purchases and see your break-even price.
KKTC Exchange Rates
Live exchange rates from Northern Cyprus (KKTC) exchange offices. Compare GBP, EUR, USD rates in Turkish Lira with real-time updates.
Break-Even Calculator
Calculate your break-even point to understand when your business becomes profitable.
Security Tools
26 tools
Password Generator
Create strong, secure passwords with customizable rules.
MD5 Hash Generator
Generate MD5, SHA-1, SHA-256 hashes from text.
SHA256 Hash Generator
Generate secure SHA-256 hashes from text and files.
Password Strength Checker
Analyze password security and get improvement suggestions.
Text Encryption
Encrypt and decrypt text using AES-256 encryption.
HMAC Generator
Generate HMAC signatures for message authentication.
Random Key Generator
Generate secure random keys for APIs and encryption.
File Hash Calculator
Calculate MD5, SHA-1, SHA-256, SHA-512 checksums for files.
EXIF Remover
Remove metadata from photos to protect your privacy. Strip GPS, camera info, and timestamps.
Password Breach Checker
Check if your passwords have been exposed in known data breaches using k-Anonymity.
URL Safety Checker
Analyze URLs for potential security threats and phishing indicators.
Secure Note Sharing
Create encrypted, self-destructing notes with password protection and expiration.
Email Security Checker
Verify email domain security with SPF, DKIM, DMARC, and MTA-STS checks.
PGP Encryption Tool
Generate PGP keys, encrypt messages, and decrypt content using RSA encryption.
2FA Code Tester
Test and verify TOTP two-factor authentication codes from your authenticator app.
JWT Security Validator
Decode, validate, and analyze JSON Web Tokens for security vulnerabilities.
JWT Generator
Create and sign JSON Web Tokens with custom claims and algorithms.
Data Sanitizer
Sanitize user input for HTML, SQL, XSS, and other security threats.
Cookie Analyzer
Analyze browser cookies for security attributes like Secure, HttpOnly, and SameSite.
Hash Comparison Tool
Compare file or text hashes to verify integrity using SHA-256, SHA-512, and more.
Password Pattern Validator
Validate passwords against custom patterns, common passwords, and entropy requirements.
Privacy Policy Checker
Analyze privacy policies for data collection, user rights, and compliance issues.
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.
Email Validator
Validate email addresses for proper format and syntax.
Phone Number Validator
Validate and format phone numbers from any country with E.164 and international formats.
E.164 Phone Number Validator
Validate and convert phone numbers to E.164 international format with batch support.
Converters
26 tools
HTML Table to JSON
Convert HTML tables to JSON arrays or objects.
JSON to Markdown Table
Transform JSON arrays into GitHub-flavored Markdown tables.
PDF to Image
Convert PDF pages to high-quality images instantly.
Image Resizer
Resize images by percentage or exact dimensions.
Image Compressor
Reduce image file size without losing quality.
Image Converter
Convert images between PNG, JPG, WebP, GIF formats.
Unit Converter
Convert length, weight, temperature, and more.
Social Media Image Resizer
Resize images for Facebook, Instagram, Twitter, LinkedIn and more.
Number Base Converter
Convert numbers between binary, decimal, hexadecimal, and octal.
HTML to Markdown
Convert HTML code to Markdown format instantly.
CSV to JSON
Convert CSV data to JSON format with customizable options.
JSON to CSV
Convert JSON data to CSV format for spreadsheets and databases.
Image to Base64
Convert images to Base64 encoded strings for embedding.
Excel to CSV
Convert Excel files (.xlsx, .xls) to CSV format online.
CSV to Excel
Convert CSV files to Excel format (.xlsx) online.
CSV Viewer
View, search, sort, and filter CSV files online.
CSV Merger
Merge multiple CSV files into one. Combine vertically or horizontally.
CSV Column Extractor
Extract specific columns from CSV files and download filtered data.
XML to JSON
Convert XML data to JSON format with attribute support.
JSON to XML
Convert JSON data to XML format with customization.
PPTX to PDF Converter
Convert PowerPoint presentations to PDF or images. 100% browser-based, no upload required.
Word to PDF Converter
Convert Word documents (.docx) to PDF and download as ZIP. 100% browser-based.
Site to Markdown
Convert any website to clean, readable Markdown format.
Country Lookup
Search countries by name, currency, timezone, or capital. Get detailed info cards with flags and contact details.
Markdown to Word
Convert Markdown to Word (.docx) with custom background, headers, images, and fonts. Download professional documents instantly.
Markdown to PDF
Convert Markdown to PDF with custom background, headers, images, and fonts. Generate styled PDF documents in your browser.
PDF Tools
7 tools
PDF Editor
All-in-one PDF tool: merge, split, rotate, delete, compress, organize.
PDF Merger
Combine multiple PDF files into one document securely.
PDF Split
Split PDF files into multiple documents by page selection.
PDF Rotate
Rotate PDF pages by 90, 180, or 270 degrees.
PDF Delete Pages
Remove unwanted pages from your PDF documents.
PDF Compress
Reduce PDF file size while maintaining quality.
PDF Organize
Drag and drop to reorder, rotate, or remove PDF pages.
Generators
30 tools
QR Code Generator
Generate QR codes for URLs, text, Wi-Fi, and vCards.
UUID Generator
Generate unique identifiers (UUID/GUID) instantly.
Random Picker
Generate numbers, pick from lists, create teams.
Signature Generator
Create digital signatures and handwritten-style text.
Email Signature Generator
Create professional email signatures for Gmail, Outlook, and other clients.
Hashtag Generator
Generate trending hashtags for Instagram, Twitter, TikTok, and more.
Image Caption Maker
Add captions and text overlays to your images.
Lorem Ipsum Generator
Generate placeholder text for your designs and layouts.
Barcode Generator
Generate barcodes in Code128 and Code39 formats.
Placeholder Image Generator
Create placeholder images with custom sizes and colors.
Random Name Picker
Pick random names from a list for giveaways and selections.
JSON to Social Card
Generate beautiful social media cards from JSON data.
JSON to Pricing Table
Create professional pricing tables from JSON configuration.
JSON to Product Card
Generate e-commerce product cards from JSON data.
JSON to Profile Card
Create team member profile cards from JSON data.
JSON to Testimonial Card
Generate customer testimonial cards from JSON data.
JSON to Timeline
Create visual timelines from JSON event data.
JSON to Chart
Generate interactive charts from JSON data.
JSON to Org Chart
Create organizational hierarchy charts from JSON data.
JSON to Invoice
Generate professional invoices from JSON data.
JSON to Resume
Create professional resumes from JSON data.
JSON to Email Template
Generate HTML email templates from JSON data.
JSON to README
Generate README.md files from JSON project data.
YouTube Description Generator
Create optimized YouTube video descriptions with timestamps, links, and SEO keywords.
LinkedIn Post Generator
Create engaging LinkedIn posts using proven templates for thought leadership and engagement.
Social Media Bio Generator
Create compelling bios for Instagram, Twitter, TikTok, LinkedIn, and YouTube.
Caption Generator
Generate engaging captions for Instagram, TikTok, Facebook, and Twitter with hashtags.
Thread Generator
Create engaging Twitter/X threads from long-form content with perfect tweet sizing.
Math Expression Generator
Render LaTeX math expressions beautifully with 40+ formula templates. Export as PNG.
Emoji Finder
Search 3,700+ emojis with fuzzy search. Find by keyword, copy with one click. Includes skin tone variants.
Calculators
24 tools
GPA Calculator
Calculate your grade point average easily.
Percentage Calculator
Calculate percentages, increases, and decreases.
Age Calculator
Calculate exact age in years, months, and days.
Grade Calculator
Calculate weighted grades and target scores.
Relationship Calculator
Calculate how long you've been together as a couple.
Work Anniversary Calculator
Calculate how long you've been working at your job.
Career Experience Calculator
Calculate your total professional experience across multiple jobs.
Daily Habit Calculator
Track how your daily habits add up over time.
Scientific Calculator
Advanced calculator with trigonometry, logarithms, and scientific functions.
Date Difference Calculator
Calculate the difference between two dates in days, weeks, months.
Macro Calculator
Calculate daily protein, carbs, and fat needs for your fitness goals.
BMI Calculator
Calculate your Body Mass Index and understand your weight category.
Aspect Ratio Calculator
Calculate and convert aspect ratios for images and videos.
Travel Budget Calculator
Plan your trip expenses including flights, hotels, food, and activities. Get a complete cost breakdown.
Water Intake Calculator
Calculate your optimal daily water intake based on weight, activity, and climate.
Body Fat Calculator
Estimate body fat percentage using the Navy method or BMI estimation.
Carbon Footprint Calculator
Calculate your annual carbon footprint from home energy, transportation, and lifestyle choices.
TDEE Calculator
Calculate your Total Daily Energy Expenditure based on BMR and activity level for weight management.
Sleep Calculator
Calculate optimal bedtime and wake times based on 90-minute sleep cycles.
One Rep Max Calculator
Estimate your 1RM for any lift using proven formulas with training weight recommendations.
Photo Measurement
Measure real-world objects from photos using reference calibration.
3D Geometry Visualizer
Explore and visualize 3D geometric shapes interactively with wireframe, edges, and real-time calculations.
3D Vector Visualizer
Visualize 3D vectors, calculate dot and cross products, angles, and projections interactively.
3D Function Plotter
Plot 3D mathematical functions z=f(x,y) with interactive surface visualization and color mapping.
Text Tools
13 tools
Case Converter
Switch text case: upper, lower, title, camelCase.
Word Counter
Count words, characters, sentences, and paragraphs.
Citation Generator
Generate APA, MLA, Chicago, Harvard citations.
Tone Analyzer
Analyze text tone, sentiment, and emotional impact of your writing.
Readability Calculator
Analyze text readability with Flesch-Kincaid, Gunning Fog, and SMOG formulas.
Character Counter
Count characters, words, and spaces in your text with detailed stats.
Reading Time Estimator
Estimate how long it takes to read or speak your content.
Text Summarizer
Summarize long texts into concise versions by extracting key sentences.
Diff Checker
Compare two texts side by side and highlight differences at character, word, or line level.
Markdown Table Generator
Create markdown tables visually with import from CSV, JSON, and Excel support.
Text Line Sorter
Sort text lines alphabetically, by length, or numerically. Remove duplicates instantly.
Text Find & Replace
Find and replace text with regex support, case sensitivity, whole word matching, and live match highlighting.
Duplicate Line Remover
Remove duplicate lines from text. Options for case sensitivity, whitespace trimming, sorting, and keeping first or last occurrence.
Media Tools
16 tools
Video Thumbnail Generator
Extract frames from videos as thumbnail images.
Free Music Library
Browse and download royalty-free music for YouTube, podcasts, TikTok, and more. No copyright claims.
Video Metadata Extractor
Extract duration, resolution, codecs, and metadata from videos.
Audio Metadata Extractor
Extract metadata, duration, and codec info from audio files.
Media Info Viewer
Extract EXIF data, GPS location, and camera info from images, videos, and audio files.
Video Trimmer
Cut and trim video clips to specific timestamps. No upload required.
Video to GIF Converter
Convert video clips to animated GIFs directly in your browser.
Video Compressor
Reduce video file size while maintaining quality. Privacy-focused.
Video Format Converter
Convert videos between MP4, WebM, and MKV formats.
Video Resizer
Change video resolution and dimensions. Browser-based processing.
Video Rotator
Rotate videos 90, 180, or 270 degrees instantly.
Extract Audio from Video
Extract audio tracks from video files as MP3 or WAV.
Audio Trimmer
Cut and trim audio files to specific timestamps.
Audio Format Converter
Convert audio between MP3, WAV, OGG, and FLAC formats.
Audio Resampler
Change audio sample rate for compatibility or quality.
Subtitle Extractor
Extract subtitle tracks from MKV and MP4 video files.
Network Tools
14 tools
SSL Certificate Checker
Verify SSL/TLS certificates, check expiration dates, and validate chain trust.
Security Headers Analyzer
Check HTTP security headers for web applications and get improvement recommendations.
DNS Security Scanner
Scan DNS records for security configurations including SPF, DKIM, and DMARC.
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.
Port Reference Guide
Interactive reference for common TCP/UDP network ports with security ratings, filtering, and detailed notes.
Bot Crawl Checker
Check if your URL is accessible to 24 search engine crawlers, AI bots, and social media bots. Analyze robots.txt rules and HTTP responses.
IP Address Lookup
Find location and details of any IP address.
Internet Speed Test
Test your internet download and upload speeds.
DNS Lookup
Perform DNS lookups to find A, AAAA, MX, CNAME, NS, TXT, SOA records for any domain.
URL Encoder/Decoder
Encode and decode URLs for safe transmission and parsing.
Screen Resolution Detector
Detect your screen resolution, viewport size, and device info.
HTTP Status Code Lookup
Search HTTP status codes by number or description. Get explanations, use cases, and solutions for every status code.
MIME Type Finder
Search MIME types by file extension or content type. Find the right MIME type for any file format.
SEO Tools
14 tools
Meta Tag Generator
Generate SEO meta tags, Open Graph, and Twitter Cards for your website.
Robots.txt Generator
Generate valid robots.txt files for SEO with crawler rules and sitemap support.
JSON-LD Generator
Generate structured data markup for SEO with JSON-LD format.
Schema.org Generator
Create Schema.org structured data for better search visibility.
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Education Tools
14 tools
Course Quiz Generator
Create course quizzes with LaTeX formula support. Export as PDF or Word for classroom use.
Flashcard Maker
Create digital flashcards for studying and memorization.
Worksheet Generator
Generate printable math and educational worksheets.
Seating Chart Maker
Create classroom or event seating arrangements visually.
Quiz Maker
Create interactive quizzes with multiple question types.
Typing Speed Test
Test your typing speed and accuracy with 60-second typing challenges.
Rubric Generator
Create grading rubrics for assessments and evaluations.
Attendance Sheet Generator
Generate printable attendance tracking sheets for classes.
Report Card Generator
Create student report cards with GPA calculation.
Lesson Plan Template
Create structured lesson plans with objectives and activities.
Education Suite
All-in-one teacher dashboard for student management, attendance, report cards, and more.
Thesis Statement Generator
Create strong thesis statements for essays and research papers.
Essay Outline Generator
Generate structured outlines for essays with introduction, body, and conclusion.
Research Title Generator
Create compelling academic research paper titles in multiple styles.
Productivity
23 tools
Pomodoro Timer
Boost productivity with timed work sessions.
Stopwatch
Online timer with lap times and precision.
Countdown Timer
Set countdown timers for events, deadlines, and special occasions.
Timezone Converter
Convert times between different time zones worldwide.
Screenshot Tool
Capture your screen instantly and download or copy screenshots.
Voice Recorder
Record audio from your microphone and export as MP3 or WAV.
Dev Request Prioritizer
Prioritize development requests using weighted scoring. Track analysis, estimate effort, see what to build next.
Sprint Capacity Calculator
Calculate your team's realistic sprint capacity accounting for meetings, PTO, holidays, and historical velocity.
Scope Creep Tracker
Track and visualize project scope changes over time. Monitor original scope vs additions and generate reports.
Technical Debt Register
Track, prioritize, and communicate technical debt. Log debt items with severity and effort, calculate interest cost.
Client Status Report Generator
Generate professional status reports for clients. Track completed work, blockers, and next goals with custom branding.
Story Point Poker
Estimate user stories asynchronously with shareable links. Use Fibonacci, T-shirt, or custom scales for distributed teams.
Retro Meeting
Run engaging sprint retrospectives with anonymous feedback. Reveal items one by one and vote on action items.
Privacy Policy Generator
Generate GDPR, CCPA, and COPPA compliant privacy policies for your website or app.
Social Media Calendar Generator
Plan your social media content with weekly or monthly posting schedules.
Spreadsheet Editor
Edit CSV and Excel files directly in your browser without uploading to any server.
Slide Deck Builder
Create stunning presentations with text, images, and shapes. Export to PDF, PNG, or GIF.
Keyboard Shortcut Finder
Find keyboard shortcuts for VS Code, Chrome, Excel, Photoshop and more. Search by action name with Mac and Windows keys.
Vision Board
Create a beautiful vision board to visualize your goals and dreams with text, drawings, images, and progress tracking.
Mind Map Maker
Create beautiful mind maps with drag-and-drop nodes. Brainstorm ideas, organize thoughts, and export your mind maps.
Decision Tree Builder
Build interactive decision trees with yes/no branches. Visualize decision logic and export flowcharts.
Workflow Builder
Build business process workflows visually. Add process steps, decisions, and conditions with drag-and-drop.
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Mockups
5 tools
Twitter/X Post Generator
Create realistic mock Twitter/X posts with likes, retweets, and custom engagement.
Instagram Post Generator
Create realistic mock Instagram posts with likes, comments, and custom profiles.
ChatGPT Screenshot Generator
Create realistic mock ChatGPT conversations with custom messages and styling.
WhatsApp Chat Generator
Create realistic mock WhatsApp conversations with read receipts and timestamps.
iMessage Chat Generator
Create realistic mock iMessage conversations with iOS-style bubbles and reactions.