Tools directory
All Free Online Tools
Browser-based utilities — no signup, no tracking, no limits.
73 live
42 coming soon
AI Token Counter & Visualizer
Exact GPT tokenization with per-token visualization
AI API Cost Calculator
Compare GPT, Claude, Gemini, DeepSeek API costs side-by-side
Agent Rules Generator
Generate CLAUDE.md, AGENTS.md, .cursorrules from one form
AI Model Comparison
Compare GPT, Claude, Gemini, Llama, Mistral, DeepSeek side-by-side
Security
All Security tools →Password Generator
Strong random passwords with custom settings
Hash Generator
SHA-1, SHA-256, SHA-384, SHA-512 hashes
Bcrypt Generator
Hash and verify passwords with bcrypt
JWT Decoder
Decode and inspect JWT tokens
Password Strength Checker
Analyse password strength and entropy
HMAC Generator
Generate HMAC signatures with SHA-256 or SHA-512
TOTP Code Generator
Generate time-based one-time passwords
Random Token Generator
Cryptographically secure random tokens and secrets
API Key Generator
Generate formatted API keys instantly
QR Code Generator
Generate QR codes for URLs and text
JWT Generator
Generate and sign JWT tokens
Text Encryption Tool
AES-256 encrypt and decrypt text in browser
SSL Certificate Decoder
Decode and inspect PEM SSL certificates
Text & Writing
All Text & Writing tools →Word Counter
Words, characters, sentences & reading time
Lorem Ipsum Generator
Placeholder text for mockups & design
Case Converter
UPPER, lower, Title, camelCase, snake_case & more
Markdown Editor
Write and preview Markdown live
Text to Slug Converter
Convert text to URL-friendly slugs
Duplicate Line Remover
Remove duplicate lines from any text
Sort Lines
Sort text lines alphabetically or by length
Reverse Text
Reverse text, words or lines instantly
Text Repeater
Repeat any text N times with a separator
Find and Replace
Find and replace text with regex support
Whitespace Remover
Strip extra spaces, tabs and blank lines
Morse Code Translator
Convert text to Morse code and back
NATO Alphabet Converter
Convert text to NATO phonetic alphabet
ROT13 Encoder / Decoder
Encode and decode text with ROT13 cipher
Text Diff Checker
Compare two texts and highlight differences
Reading Time Calculator
Estimate reading time from word count
Random Text Generator
Generate random words, sentences and paragraphs
Keyboard Layout Converter
Fix text typed in the wrong keyboard layout
Text to Binary Converter
Convert text to binary and binary to text
Palindrome Checker
Check if text is a palindrome
Text Readability Analyser
Flesch–Kincaid, Gunning Fog and more
Emoji Picker
Search and copy any emoji instantly
Superscript & Subscript Generator
Convert text to superscript or subscript Unicode
Plain Text to HTML Converter
Convert plain text to formatted HTML
Zalgo Text Generator
Generate glitchy corrupted-looking text
Fancy Text Generator
Stylish Unicode fonts for social media bios
Number to Words Converter
Convert numbers to English words
HTML to Markdown Converter
Convert HTML to clean Markdown
Code & Dev
All Code & Dev tools →UUID Generator
Generate v4 UUIDs instantly
Base64 Encoder / Decoder
Encode or decode Base64 strings instantly
JSON Formatter
Prettify, minify & validate JSON
HTML Minifier
Minify and beautify HTML markup
JavaScript Minifier
Minify and compress JavaScript code
SQL Formatter
Format and beautify SQL queries
HTML Beautifier
Format and indent HTML markup
.gitignore Generator
Generate .gitignore files for any stack
CSS Unit Converter
Convert px, rem, em, vw, vh and more
Semver Comparator
Compare semantic version strings
CSS Selector Generator
Generate Playwright, Cypress, CSS, and XPath selectors from any HTML snippet
API Assertion Builder
Paste JSON → get Jest, Playwright, pytest, and Supertest assertions
JWT Generator
Generate and sign JWT tokens
Color Contrast Checker
WCAG 2.1 AA/AAA contrast ratio checker
Regex Tester
Test and debug regular expressions live
Timestamp Converter
Convert Unix timestamps to human-readable dates
Cron Expression Generator
Build and validate cron job schedules
CSS Minifier
Minify and beautify CSS code
HTML Entities Encoder
Encode and decode HTML entities
ASCII Table
Complete ASCII and Unicode character reference
Unicode Character Lookup
Search Unicode code points, names and blocks
Image to Base64 Converter
Convert images to Base64 data URLs
Markdown to HTML Exporter
Export Markdown as clean HTML
Data & Format
All Data & Format tools →CSV to JSON
Convert CSV data to JSON instantly
JSON to CSV Converter
Convert JSON arrays to CSV format
JSON to YAML Converter
Convert JSON to YAML and YAML to JSON
Form Test Data Generator
Generate test cases for every form field — valid, invalid, boundary, XSS, SQL
Mock Data Generator
Generate realistic fake data for testing
XML to JSON Converter
Convert XML to JSON and JSON to XML
JSON Schema Generator
Generate JSON Schema from any JSON sample
TOML to JSON Converter
Convert TOML config files to JSON
CSV Viewer & Editor
Preview and edit CSV data in a table
Lorem JSON Generator
Generate JSON with realistic random data
Network & Web
All Network & Web tools →URL Encoder / Decoder
Encode and decode URLs instantly
HTTP Status Code Reference
Quick reference for all HTTP status codes
IP / CIDR Calculator
Calculate subnet ranges, masks and hosts
Nginx Redirect Generator
Generate Nginx redirect configs instantly
MIME Types Reference
Searchable MIME type and file extension lookup
Robots.txt Generator
Generate robots.txt files for your site
User-Agent Parser
Parse and decode browser user-agent strings
.htaccess Generator
Generate Apache .htaccess rules
Design & Media
All Design & Media tools →Color Palette Generator
Generate harmonious color palettes
Username Generator
Creative usernames for social media & gaming
CSS Unit Converter
Convert px, rem, em, vw, vh and more
Color Contrast Checker
WCAG 2.1 AA/AAA contrast ratio checker
Color Converter
Convert between HEX, RGB, HSL, HSV and CMYK
Favicon Generator
Generate favicons from text or emoji
Color Name Finder
Find the nearest CSS color name for any hex
Image to Base64 Converter
Convert images to Base64 data URLs
SVG Optimizer
Optimize and compress SVG files
CSS Gradient Generator
Create CSS gradients with live preview
Box Shadow Generator
Create CSS box shadows with live preview
QA & Testing
All QA & Testing tools →Form Test Data Generator
Generate test cases for every form field — valid, invalid, boundary, XSS, SQL
Mock Data Generator
Generate realistic fake data for testing
CSS Selector Generator
Generate Playwright, Cypress, CSS, and XPath selectors from any HTML snippet
API Assertion Builder
Paste JSON → get Jest, Playwright, pytest, and Supertest assertions
Value Converter
All Value Converter tools →Length Converter
Convert metres, feet, inches, miles and more
Data Storage Converter
Convert bytes, KB, MB, GB, TB and more
Energy Converter
Convert joules, calories, kWh, BTU and more
Time Converter
Convert seconds, minutes, hours, days, weeks, years
Number Base Converter
Convert binary, octal, decimal and hexadecimal
Power Converter
Convert watts, kilowatts, horsepower and BTU/hr
Torque Converter
Convert Newton-metres, foot-pounds and inch-pounds
Running Pace Converter
Convert min/km, min/mile, km/h and mph
Bitrate Converter
Convert bps, kbps, Mbps, Gbps and more
Weight Converter
Convert kg, lbs, grams, ounces and more
Temperature Converter
Convert Celsius, Fahrenheit and Kelvin
Area Converter
Convert m², ft², acres, hectares and more
Volume Converter
Convert litres, gallons, cups, ml and more
Speed Converter
Convert km/h, mph, m/s, knots and more
Pressure Converter
Convert Pascal, bar, PSI, atm and mmHg
Frequency Converter
Convert Hz, kHz, MHz, GHz and RPM
Angle Converter
Convert degrees, radians and gradians
Fuel Economy Converter
Convert MPG, L/100km and km/L
Pixel ↔ REM Converter
Convert px to rem and rem to px
Roman Numeral Converter
Convert numbers to Roman numerals and back
Cooking Measurement Converter
Convert cups, tablespoons, grams and ml
Currency Converter
Convert between world currencies with live rates