Image & SVG
Favicon Generator
Generate common favicon PNG sizes locally from a source image.
Choose a square-ish PNG, JPEG, or WebP image. Favicons are generated locally.
How to use this tool
Drop a square PNG, JPEG, or WebP source image into the generator.
Lumio creates common favicon PNG sizes locally in your browser.
Download the generated sizes and add the matching link tags or manifest icons to your website.
Recommended favicon sizes
A practical favicon set usually includes 16x16 and 32x32 PNG files for browser tabs and bookmarks.
Larger sizes such as 180x180 are commonly used for Apple touch icons, while 192x192 and 512x512 are useful for web app manifests.
Start from a clean square source image with enough padding so the mark remains readable at 16x16.
Favicon cache troubleshooting
Browsers cache favicons aggressively. If a new icon does not appear, test in a private window or change the file name.
Search engines and social apps may also cache icons and previews for days.
Keep icon URLs stable once the final set is published, especially for production sites.
Privacy and source images
The favicon sizes are generated in the browser. Your source image is not uploaded to Lumio.
Use a source image that is already safe to publish, because the generated favicon files are intended to become public website assets.
Examples
Basic HTML favicon tags
Output<link rel="icon" href="/favicon-32x32.png" sizes="32x32" type="image/png"> <link rel="apple-touch-icon" href="/apple-touch-icon.png">
Manifest icon sizes
For installable web apps, include 192x192 and 512x512 icons in the web app manifest.
FAQ
What source image works best?
Use a square image at least 512x512 pixels with a simple mark, strong contrast, and enough padding for tiny sizes.
Why does my old favicon still show?
Favicons are heavily cached by browsers. Try a private window, clear site data, or publish the new icon under a new file name.
Do I need an ICO file?
Modern sites can use PNG and SVG favicons, but an ICO file can still be useful for older compatibility. This generator currently focuses on PNG sizes.
Is my image uploaded?
No. Favicon generation runs locally in your browser.