JPG to ICO Converter — Free, Online, No Upload

Every website needs a favicon — the small icon that appears in browser tabs, bookmarks, and mobile home screens. Browsers look for favicon.ico at the root of your domain by default, and without one every tab shows a blank or generic icon. Most people have their logo as a JPG, not as a multi-resolution ICO file. Creating an ICO manually in a graphics editor requires the right export plugin and knowledge of the format — converting from JPG is the faster path.

Converting a JPG to ICO produces a properly formatted favicon file that you can place at the root of your web server or specify in your HTML head with a link tag. Modern ICO files contain multiple resolution variants — typically 16x16, 32x32, and 48x48 pixels — so the icon looks sharp in browser tabs, Windows Explorer, and on high-DPI screens. Once you have your favicon.ico, drop it into the public folder of your Next.js, Astro, or static site, or upload it to the root directory of your hosting account.

Favicons are tiny, so the source JPG should be a simple, high-contrast graphic that reads clearly at 16 pixels wide. Detailed photography or text-heavy logos become unrecognisable at favicon size. Crop your JPG to a square before converting — favicon.ico is always square, and non-square images will be stretched. Start from a simplified version of your logo for the best result.

Typical sizes: JPG 2–5 MB (12MP photo); ICO 10–100 KB (multi-size icon).

ICO will not bring back detail that JPG compression already removed, but it adds no further loss — handy when you need to edit the image.