Developer Tools
Format, debug, encode, and inspect payloads, APIs, timestamps, and tokens directly in your browser.
JSON Formatter & Validator
Prettify, minify, sort keys, and validate JSON with line-by-line syntax error diagnostics.
JWT Decoder
Decode JSON Web Token headers and claims with expiry dates without sending tokens anywhere.
Regex Tester
Test regular expressions with real-time match highlighting, capture groups, and ReDoS protection.
Base64 Encoder / Decoder
Encode and decode text and files to standard Base64 and URL-safe Base64 with full UTF-8 support.
UUID Generator
Generate cryptographically secure RFC-4122 v4 UUID identifiers with custom formatting options.
Unix Timestamp Converter
Convert epoch seconds and milliseconds to UTC, local, and IST dates and relative time.
Code Beautifier
Format and beautify HTML, CSS, JavaScript, and SQL source code locally.
Text Diff Checker
Compare two text snippets side-by-side or inline to highlight additions, deletions, and edits.
Cron Expression Generator
Build standard 5-field Unix cron schedules with human-readable descriptions and next run times.
JSON to CSV Converter
Convert JSON arrays to spreadsheet-safe CSV and parse CSV tables back to JSON.
Hash Generator
Generate secure SHA-256 and SHA-512 cryptographic digests using the native Web Crypto API.
cURL Converter
Parse cURL commands into clean JavaScript Fetch or Axios requests without running code.