Category
Developer Tools
Formatters, encoders, validators, and debugging utilities.
12 tools
Developer Tools tools
JSON Formatter
Format, minify, and validate JSON instantly in your browser.
Developer
Regex Tester
Test JavaScript regular expressions with matches and groups.
Developer
Base64 Encode / Decode
Encode text to Base64 or decode Base64 back to text.
Developer
Color Picker
Convert colors between HEX, RGB, and HSL.
Developer
Cron Expression Builder
Build a 5-field cron expression with a short description.
Developer
Diff Viewer
Compare two texts with a line-based diff.
Developer
Hash Generator
Create SHA-1, SHA-256, and SHA-512 hashes from text.
Developer
JWT Decoder
Decode JWT header and payload locally — without verifying signatures.
Developer
QR Code Generator
Generate a QR code for short URLs or text and download PNG.
Developer
SQL Formatter
Uppercase SQL keywords and add simple indentation.
Developer
UUID Generator
Generate secure UUID v4 identifiers in your browser.
Developer
YAML ⇄ JSON Converter
Convert JSON to YAML and a practical YAML subset to JSON.
Developer