ICO Generator
Convert an image into a multi-size .ico favicon file.
The ICO format is what browsers and Windows use for favicons and application icons.
About ICO Generator
Convert a square source image into a proper multi-resolution .ico file bundling 16×16, 32×32, 48×48, and 64×64 sizes in one favicon.ico, ready to drop into a website's root directory — no design software required.
The ICO format is what browsers and Windows use for favicons and application icons. This ICO generator converts your source image into a multi-resolution .ico file that contains 16×16, 32×32, 48×48 and 64×64 versions in a single file.
How to use ICO Generator
- Upload a square source image, ideally at least 256×256 pixels.
- Click Generate ICO.
- Wait for the multi-size file to be built.
- Download favicon.ico and place it in your site's root.
Key features
- Four icon sizes in one file.
- Works with PNG, JPG and WebP sources.
- Standards-compliant ICO output.
- Generated privately in your browser.
Common use cases
- Adding a favicon to a new website.
- Creating a Windows shortcut or app icon.
- Replacing a blurry old favicon.