Featured Developer Tools
Preview markdown in real-time with GFM support and split view
Convert JSON arrays to CSV format with custom delimiters and headers
Test and debug regular expressions with live match highlighting and group capture
Format and beautify SQL queries for MySQL, PostgreSQL, and SQLite
Parse and explain cron expressions with next run times and human-readable descriptions
Format, validate, and beautify JSON data
All Developer Tools
Minify and prettify CSS code with optimization options
Convert numbers between binary, octal, decimal, and hexadecimal instantly
Encode and decode Base64 strings
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text or files
Beautify or minify HTML code with configurable indentation
Encode and decode URLs with percent-encoding (RFC 3986)
Decode JWT tokens and inspect header, payload, expiry, and claims