Developer Tools
Fast utilities to format, validate, and transform the data developers deal with every day: JSON, Base64, JWT, UUID, and regular expressions.
JSON Formatter & Validator
Format, validate, and minify JSON instantly.
Base64 Encoder & Decoder
Encode text to Base64 or decode it back, with full Unicode support.
UUID v4 Generator
Generate one or many random UUID v4s instantly.
JWT Decoder
Decode a JWT's header and payload and view them as JSON.
Regular Expression Tester
Test regular expressions in real time and inspect matches and groups.
XML Validator
Validate an XML document's syntax and view it formatted.
YAML Validator
Validate YAML syntax and view the parsed structure as JSON.
Cron Expression Generator
Build cron expressions with guided controls or decode an existing one in plain English.
URL Encoder & Decoder
Encode or decode text for use in URL parameters.
HTML Formatter
Indent and clean up HTML to make it readable, preserving pre, script, and style.
SQL Formatter
Format SQL queries with support for multiple dialects.
CSS Minifier
Minify CSS by removing whitespace, comments, and redundant rules.
JavaScript Minifier
Minify and compress JavaScript to reduce its file size.
Text Hash Generator (MD5/SHA)
Calculate the MD5, SHA-1, SHA-256, SHA-384, or SHA-512 hash of a text.
Text Encoding Detector
Detect a text file's encoding (UTF-8, UTF-16, Latin-1) and fix mojibake text.
JSON to TypeScript Interface Generator
Paste a JSON sample and get the matching TypeScript interfaces, with optional fields detected automatically.