Essential tools for developers — 10 free tools
Format, validate, and beautify JSON data with syntax highlighting
Decode and inspect JWT tokens — header, payload, and signature
Encode and decode Base64 strings and files
Test and debug regular expressions with live matching
Convert Unix timestamps to human-readable dates and vice versa
Generate strong, random passwords with custom length and character options
Generate UUID v4 identifiers instantly — single or bulk
Convert colors between HEX, RGB, HSL, and CMYK with a visual picker
Generate QR codes for any text or URL — customize colors and download as PNG
Convert JSON to CSV and CSV to JSON instantly in your browser