Generate a favicon set
Drop one square image and get the whole set: a favicon.ico, the PNG sizes browsers and phones actually use, a web app manifest, and the exact link tags to paste into your head. Built in your browser.
Drop a square image (PNG / SVG / JPG)
Best results with a 512 by 512 PNG or SVG, sharp edges, minimal detail
This is what a tab actually needs
The same icon at the sizes different devices reach for. From your one upload, the tool renders each one and packs them together.
Notice the detail you can afford at 180px disappears at 16px. A favicon that survives the tab needs bold, simple shapes.
Frequently asked questions
Because different places pull different sizes: the browser tab uses 16 or 32, the iPhone home screen wants 180, Android uses 192, and an installed web app uses 512. Ship only one tiny icon and most of those end up blurry or fall back to a generic globe.
A square image, 512 by 512 or larger, with bold simple shapes and no fine detail (detail vanishes at 16px). An SVG is ideal because each size is rendered fresh and stays crisp.
In your site root folder. The zip includes an install snippet with the exact link tags to paste into your page head, so you are not guessing.
Only if you want the site to be installable as a web app on Android. A normal static site can ignore it.
No. The whole set is built in your browser with Canvas and JSZip. The image never leaves your device.