Point it at a link, a Wi-Fi network, or a contact card, then style the result: module and finder shapes, a color palette, an icon in the middle, and a frame with your own caption. Everything runs in your browser, so nothing you type is uploaded anywhere, and the download is a plain SVG or PNG.
Version 2 · 25×25 modules · M error correction
The scheme is filled in for you if you leave it off.
Higher levels survive damage and center icons, but need a denser code.