🛠️ Developer Tools

QR code generator, unit converter, JSON formatter and Base64 encoder, free and private.

{ }JSON FormatterBeautify, minify, and validate JSON with clear error messages. 📷QR Code GeneratorCreate QR codes for any URL or text — download as PNG or SVG. 🔄Base64 Encoder/DecoderEncode or decode Base64 strings with full Unicode support. 📏Unit ConverterConvert length, weight, and temperature units.

Developer and Everyday Utilities

Four practical utilities that people use every day, not only developers. The QR Code Generator turns a web address, text or contact details into a QR code you can download and print. The Unit Converter converts length, weight and temperature between metric and imperial units. The JSON Formatter validates and tidies JSON data and points to errors. The Base64 Encoder and Decoder converts text to and from Base64, with full support for special characters such as å, ä and ö.

Fast and Private

The tools run entirely in your browser and work without an internet connection once the page has loaded. Nothing you convert, format or encode is sent to a server, which matters when you work with API keys, configuration files or personal data.