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Favicon and app icon guides

Sizes, formats and fixes.

Where to start

Read the page on sizes and formats first, then the page on manifests and maskable icons if you want your site to be installable. If an icon does not appear, go to the troubleshooting page and work through the five checks.

This is an independent guide. It is not connected with Google, Apple, Mozilla, Blogger or any company named here. Facts were read on 14 November 2026 from the pages named on each page. The icon maker runs in your browser: your picture is not uploaded anywhere.