Icon Grid
Icon Grid draws favicons in your browser, so it needs JavaScript to run. Everything it does
happens on your device — nothing is uploaded.
If you would rather assemble the bundle by hand, here is what a complete set contains:
favicon.svg — a vector icon, scalable at any size
favicon.ico — the legacy multi-size icon, 16, 32 and 48 pixels
favicon-96x96.png — a raster icon for browsers that ask for one
apple-touch-icon.png — 180 by 180, used when you add a site to an iOS home screen
web-app-manifest-192x192.png and web-app-manifest-512x512.png — declared as maskable
site.webmanifest — the manifest that points at those two