For developers
JSON, JWT, regex, SQL
10 tools picked out of 235, for the work you actually do. All of them run in your browser — nothing is uploaded.
JSON Formatter
Developer Tools
Format, beautify and validate JSON instantly.
JWT Decoder
Developer Tools
Decode and inspect JWT header and payload.
Regex Tester
Developer Tools
Test regular expressions with live match highlighting.
Base64 Encode
Developer Tools
Encode text or files to Base64.
URL Encoder
Developer Tools
Percent-encode text for safe use in URLs.
UUID Generator
Developer Tools
Generate v4 UUIDs in bulk.
Hash Generator
Developer Tools
Generate MD5, SHA-1 and SHA-256 hashes.
Timestamp Converter
Developer Tools
Convert Unix timestamps to dates and back.
SQL Formatter
Developer Tools
Format SQL queries for readability.
Color Converter
Developer Tools
Convert between HEX, RGB, HSL and more.