💻 Developer Tools
16 free tools — no signup, no limits
JWT Decoder
Decode and inspect JWT tokens — header, payload, signature
Cron Expression Generator
Build and explain cron expressions with human-readable output
Number Base Converter
Convert between binary, octal, decimal, hexadecimal
IP Address Lookup
Get geolocation, ISP and info for any IP address
HEX to RGB Converter
Convert HEX colors to RGB, HSL, OKLCH — and vice versa
UUID Generator
Generate RFC 4122 UUIDs v4 instantly, bulk generation
Hash Generator
MD5, SHA-1, SHA-256, SHA-512 hash from any text
JSON to CSV Converter
Convert JSON arrays to CSV and download instantly
CSV to JSON Converter
Convert CSV files to JSON format instantly
JSON Validator
Validate and format JSON with detailed error messages
Regex Tester
Test regular expressions with live match highlighting
HTML Minifier
Minify HTML by removing whitespace and comments
CSS Minifier
Minify CSS code for production deployment
JavaScript Minifier
Minify JavaScript code — remove whitespace and comments
Random String Generator
Generate random strings — alphanumeric, hex, custom charset
Unix Timestamp Converter
Convert Unix timestamps to human dates and back