Convert ICO to HEIC
Free, fast and secure — convert ICO to HEIC right in your browser.
Shrink your ICO by converting to HEIC
Converting ICO to HEIC trades a little detail for a much smaller file, making HEIC image the practical choice for fast web pages, email and sharing.
How to convert ICO to HEIC
- 1 Drop your ICO file into the converter above.
- 2 It is converted to HEIC automatically — no settings to fiddle with.
- 3 Download your new HEIC file instantly.
ICO vs HEIC
| Feature | ICO | HEIC |
|---|---|---|
| Compression | Lossless | Lossy |
| Transparency | Yes | No |
| Animation | No | No |
| Type | Raster | Raster |
| MIME type | image/x-icon | image/heic |
| Best for | Website favicons and Windows app icons — usually made from a PNG or SVG. | Storing iPhone photos efficiently — usually converted to JPG or PNG before sharing. |
About the formats
Icon (ICO)
ICO is the Windows icon format, used for app icons and website favicons. A single ICO file can bundle several sizes so the right one is shown at each scale.
Strengths
- The standard for website favicons
- Bundles multiple sizes in one file
- Supports transparency
Limitations
- Tiny dimensions only
- Not for general photos
- Limited editor support
Best for: Website favicons and Windows app icons — usually made from a PNG or SVG.
HEIC image
HEIC is the high-efficiency format Apple devices use by default. It stores photos at roughly half the size of JPG with comparable quality, but is awkward to share outside the Apple ecosystem.
Strengths
- Half the size of JPG at similar quality
- Stores rich photo metadata
- Default on modern iPhones and iPads
Limitations
- Poor support on Windows, Android and the web
- Often needs converting before sharing
- Limited editor compatibility
Best for: Storing iPhone photos efficiently — usually converted to JPG or PNG before sharing.