Free utilities for developers and everyday use
Format and validate JSON data
Test regular expressions in real time
Encode and decode Base64
Encode and decode URLs
Decode JWT token payloads
Live Markdown rendering
Count characters, words, and lines
Compare differences between two texts
Convert between Unix timestamps and dates
Calculate date differences and add/subtract days
Generate QR codes from text
Pick colors and generate HEX/RGB/HSL values
Convert between YAML and JSON formats
Escape and unescape HTML special characters