Developer Tools
Handy utilities for developers — JSON formatters, Base64, JWT decode, regex tester, hash generator, timestamps, and color tools.
JSON Formatter
Format and beautify JSON with syntax highlighting.
JSON Validator
Validate JSON and show parse errors.
Base64 Encode/Decode
Encode or decode text and data in Base64.
JWT Decoder
Decode JWT header and payload (verify separately).
Regex Tester
Test regular expressions against sample text.
UUID Generator
Generate random UUID v4 identifiers.
Hash Generator
Generate SHA-256 and other hashes from text.
URL Encoder/Decoder
Encode or decode URL components.
Timestamp Converter
Convert Unix timestamps to human-readable dates.
Color Picker
Pick colors and copy HEX, RGB, and HSL values.
XML Formatter
Format and prettify XML documents.
YAML Formatter
Clean up and format YAML text.
Cron Generator
Build cron expressions from plain English fields.
SQL Formatter
Format SQL queries for readability.
HEX ↔ RGB Converter
Convert between HEX and RGB color values.
HTML Minifier
Minify HTML by removing whitespace and comments.
CSS Minifier
Compress CSS stylesheets.
JS Minifier
Basic JavaScript minifier for snippets.
HTTP Header Checker
Parse and inspect HTTP request/response headers.
API Request Tester
Send HTTP requests from your browser (CORS may apply).