💻 Developer & Web Tools

These are the small utilities developers and webmasters reach for a dozen times a day. The JSON formatter tidies messy JSON into readable, indented output and flags syntax errors, and the regex tester lets you try patterns against sample text with live matches before the code ships. Encoding jobs are covered by the Base64 encoder and decoder, the URL encoder for query strings and links, and a pair of number-base tools — the binary converter for decimal, binary, hex and octal, and text to binary for seeing text the way a machine does.

Building or shipping a site? Generate a favicon from text or an image, create a colour palette for a design, analyse any page's meta tags for SEO, and make QR codes for links, menus and packaging with the QR generator. The password generator creates strong random passwords of the length and character mix you choose — generated on your own device, never transmitted — and the bookmark manager helps tidy up the links you collect.

Because every tool runs entirely in your browser, you can safely paste API responses, config files and other sensitive text: nothing is uploaded, logged or stored. All twelve tools are free, with no signup and no install.