Free Online Developer Tools
Format JSON, encode text, make an id, or hash a string. These tools run in the browser.
- JSON Formatter Pretty print, validate and minify JSON instantly. Get started
- Base64 Encode/Decode Encode text to Base64 and decode it back. Get started
- URL Encoder Percent-encode text for safe links and queries. Get started
- UUID Generator Generate random UUID v4 identifiers in bulk. Get started
- SHA Hash Generator SHA-256 and SHA-1 hashes of text or files. Get started
- QR Code Generator Turn any link or text into a downloadable QR PNG. Get started
- Password Generator Strong random passwords, made on your device. Get started
Which developer tool to use
JSON Formatter pretty-prints or minifies JSON and reports invalid input. Base64 encodes and decodes text. URL Encoder percent-encodes or decodes a string.
UUID Generator makes random UUID v4 values. SHA Hash hashes text in the browser. QR Code Generator turns a link or short text into a PNG you can download.
Password Generator builds strong random passwords on your device, with a strength meter and entropy readout.
Binary, hex, and other number bases are on the converters page. Unix time is with the date and time tools.