A favicon is the small icon a browser shows in the tab, bookmarks and history for your site, and modern devices also use larger versions for home-screen shortcuts and app manifests. This generator takes one source image and renders it into every size you are likely to need — 16 and 32 for classic tabs, 48 and 64 for high-DPI tabs, 180 for Apple touch icons, and 192 and 512 for Android and PWA manifests — each available as a separate PNG download.
For the crispest result start from a square image at least 512 pixels wide. Every size is drawn with the HTML canvas API on your own device, so your logo is never uploaded to any server. The tool also prints ready-to-paste HTML link tags; drop your PNGs into the site root and add the tags to the page head to wire everything up.