Best Favicon Format: ICO vs PNG

ICO and PNG are not interchangeable even when both can display an icon. ICO remains useful for browser-level favicon support because it can bundle multiple icon sizes into one file.

PNG is still important because touch icons, manifests, and install surfaces often expect standalone PNG assets in larger sizes. A strong favicon workflow usually ships both formats together.

That is why a favicon generator is often more useful than a plain converter. The user rarely wants a file in isolation; they want a package that matches the deployment task.