Fast, private, and easy-to-use tools for developers.
Encode/decode Base64
URL encode/decode text
HTML entity encode/decode
Encode/decode Unicode escape sequences
Encode/decode text to/from hex
Convert text to/from binary
Convert text to/from ASCII codes
Encode/decode UTF-8 byte sequences
Encode/decode with ROT13 cipher
Escape strings for bash, shell and command line
Convert text to/from Morse code
Generate UUID v4
Generate QR codes
Generate placeholder text
Create secure passwords
Generate compact unique IDs
Create URL-friendly slugs
Generate random alphanumeric strings
HEX/RGB/HSL converter
Create gradient CSS
Check WCAG contrast ratios
Generate harmonious color palettes
Visual CSS flexbox layout generator
Visual CSS grid layout generator
Generate CSS box-shadow styles visually
Generate CSS border-radius styles visually
Convert colors between HEX, RGB, HSL and CMYK
Generate Tailwind CSS color palette configs
Format, validate, minify JSON
Generate JSON Schema from JSON data
Convert JSON to TypeScript, Go, Rust, Kotlin, Dart
Generate fake JSON data, mocks and fixtures
Unix timestamp converter
MD5, SHA-1, SHA-256, SHA-512
Dec/Hex/Bin/Oct converter
Convert time between different timezones
Convert JSON/YAML
Convert CSV data to JSON
Compare and diff two JSON objects
Escape/unescape JSON strings
Sort JSON object keys alphabetically
Convert JSON array to CSV format
Flatten nested JSON to dot-notation keys
Convert between JSON and XML formats
Convert JSON to TOML config format
Visualize JSON structure as a tree
Preview HTML code in real-time
Calculate Unix file permissions and chmod values
Count tokens for OpenAI, Claude and Gemini models
Format and optimize LLM prompts for better results
Decode JSON Web Tokens
Create and sign JSON Web Tokens
Inspect JWT claims, expiry, and structure
Test regular expressions
Compare text differences
Format SQL queries
Minify and compress SQL queries
Validate SQL syntax and find errors
Parse URL components
HTTP status code reference
Parse cron schedule expressions
Build cron schedule expressions visually
Quick reference for regex syntax and patterns
Generate regex patterns from plain text descriptions
Escape/unescape strings
UPPER/lower/CamelCase
Count words, chars, lines
Remove duplicate lines
Count characters, letters, digits and spaces
Count total, empty and non-empty lines
Remove blank and whitespace-only lines
Sort text lines alphabetically A-Z or Z-A
Randomly shuffle and reorder text lines
Reverse characters, words or line order
Preview Markdown in real-time
Lookup IP geolocation & ISP
Show your public IP address
Query DNS records
Real-time DNS query logging via dig.pm
Parse browser user agent
Parse and decode URL query parameters
View and analyze HTTP request/response headers
Lookup domain registration and ownership info
Test network latency and packet loss
Check if TCP ports are open or closed
Convert image to Base64 data URI
Decode and view Base64-encoded images
View and preview SVG code in real-time
Optimize and clean up SVG markup
Minify and compress SVG code
Compress JPEG, PNG and WebP images
Crop and trim images in the browser
Resize images to exact dimensions
Generate favicon.ico from any image
Convert images between PNG, JPEG, WebP, SVG
View EXIF metadata from JPEG photos
Check SSL certificate details
Evaluate password strength
Generate CRC32 checksum from text
Hash passwords with bcrypt algorithm
Encrypt and decrypt text with AES-256/192/128-GCM
Generate RSA public/private key pairs
Generate HMAC with SHA-256 and SHA-512
Format & beautify CSS
Minify and compress CSS code
Format & beautify HTML
Minify and compress HTML code
Format & beautify JavaScript
Convert PX to REM/EM units
Validate and test robots.txt rules for URLs
Validate XML sitemap structure and format