334+ Tools

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.

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.

Network Tools

14 tools

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.

Name

Description