PNG, JPG, GIF or WebP in — favicon.ico and a full set of favicons out
A favicon is the small icon that appears in a browser tab, a bookmarks list, browser history and, on mobile home screens, as the icon for a saved shortcut. Though only a handful of pixels, it's often the first visual cue a visitor associates with a site — its absence leaves a generic blank-page icon that makes a site look unfinished next to properly branded tabs.
Different platforms expect different sizes: browser tabs typically use 16×16 or 32×32 pixels, Apple's home-screen icon expects a 180×180 PNG, and Android Chrome uses larger 192×192 and 512×512 icons for app shortcuts and splash screens. The bundled .ico format historically was the only icon browsers recognized, and while modern browsers also accept plain PNG favicons, a combined .ico remains the safest fallback for older browsers and some cataloguing tools.
Preparing all of these sizes by hand in an image editor is tedious and easy to get wrong. This generator produces the full set from a single source image at once, ready to drop into a site's root folder alongside the matching HTML tags, with no design software or account required.