Upload any square image and generate all the favicon sizes modern browsers and devices expect — 16×16, 32×32, 180×180 (Apple touch icon), and 192×192 (Android). Download the files as a zip and drop them into your site's public folder. The tool also outputs the complete HTML link tags to add to your page head.
Verify a file's integrity by checking its hash against an expected checksum. Supports SHA-256, SHA-1, MD5, and more. Runs in your browser — nothing uploaded. Free.
Paste a JSON Web Token to decode and inspect its header, payload, and expiry — entirely in your browser.
Test regular expressions against a string with live match highlighting, flag toggles, and a match details table.