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Your file is converted locally in your browser. It is never uploaded anywhere.
Turn a PNG image into a proper multi-size .ico file, ready to use as a website favicon. Because the conversion happens with your browser's built-in image engine, there's no queue, no file-size limit tied to a server, and no copy of your file kept anywhere once you close the tab.
This tool bundles 16Γ16, 32Γ32, 48Γ48 and 64Γ64 versions into a single .ico file, so browsers and operating systems can pick the size they need.
Renaming doesn't change the file's actual format β an .ico file has its own binary structure, and most browsers and OSes will reject a mislabeled PNG.
A square PNG with a simple, high-contrast design works best, since favicons are viewed very small.
No β this produces just the .ico file itself. Some sites also want an apple-touch-icon PNG and a web manifest, which aren't covered by this tool.