Developer Tools
JSON Formatter & Validator
Make a wall of JSON readable, check for syntax errors or minify it when you need a compact version.
On your device
Your tools for the job
Developer Toolkit
JSON, Base64, hashes, regex, JWT and timestamps — the daily drivers.
8 available tools. Start wherever you need.
Save a sequence →Developer Tools
Base64 Encoder / Decoder
Decode a Base64 string, encode text or turn a file into Base64 without sending it to a server.
On your device
Developer Tools
Hash Generator
Get a SHA checksum for text or a file, then compare it with a trusted checksum to check it matches.
On your device
Developer Tools
Regex Tester
Try a regular expression against real text and see its matches and captured groups as you edit.
On your device
Developer Tools
JWT Decoder
See the readable details inside a JWT: its header, claims and expiry, without uploading your login token.
On your device
Developer Tools
UUID Generator
Generate fresh random UUIDs for records, test data or code, one at a time or in a ready-to-copy batch.
On your device
Developer Tools
Unix Timestamp Converter
Turn a Unix timestamp into a readable date, or find the timestamp for a date in seconds or milliseconds.
On your device
Developer Tools
JSON ↔ CSV Converter
Turn JSON rows into spreadsheet-ready CSV, or convert a CSV table into JSON you can use in code.
On your device