Windows icon and favicon container, several sizes in one file. Best for favicons and Windows app icons.
At a glance
| Category | Images |
|---|---|
| MIME | image/x-icon |
| Extensions | .ico |
| Compression | Lossless |
| Transparency | ✓ |
| Animation | - |
| HDR | - |
| Defined by | Microsoft |
| Open | - |
Convert from ICO (6)
Convert to ICO (9)
Questions
What is a ICO file?
Windows icon and favicon container, several sizes in one file. Best for favicons and Windows app icons.
How do I open a .ico file?
Drop it on this page: we read it in your browser and can convert it to PNG, JPG, WebP, AVIF, JPEG XL.
How do I convert a ICO?
Pick a target below: 6 conversions from ICO are available, all in your browser.