Runs locally · Zero uploads

Favicon Set Generator

One source image → favicon.ico + 6 PNG sizes + manifest.json.

How it works

Modern sites need at least 7 favicon variations: a 16/32/48 ICO for legacy browsers, a 180×180 apple-touch-icon for iOS home screen, and 192/512 PNGs for Android home-screen install. Bytario produces all of them from one source image (square works best, ideally 512×512 or larger).

Verify it yourself. Open DevTools → Network → run a conversion. The only requests you'll see are the page assets — your file never leaves this tab.

FAQ

What size should the source image be?

At least 512×512 pixels, square. Bytario downsamples for the smaller sizes; trying to upscale a 64×64 source will look blurry at 512.

Why does favicon.ico contain multiple sizes?

Browsers pick the size that matches the display context — taskbar (16), tab (16 or 32), bookmarks (32), app drawer (48). Modern ICO supports embedded PNG entries so we ship the same PNGs we generate separately.

Where do I put these files?

favicon.ico goes in your site root. The PNGs go anywhere as long as your references them with correct and tags. The manifest.json should also live in the root.