AVIF VS ICO
The ultimate comparison guide. Understanding the technical differences between AV1 Image File Format and Icon File.
AVIF
avifNext-gen compression codec derived from AV1 video, offering the best quality-to-size ratio.
Pros
- Best-in-class compression
- HDR support
- 10-bit color depth
Cons
- Slow encoding speed
- Limited software support outside browsers
ICO
icoStandard format used for computer icons and favicons.
Pros
- Contains multiple resolutions
- Standard for Windows/Web icons
Cons
- Limited use case
- Inefficient for general images
When AVIF wins
Stay with AVIF when you need next-gen web delivery or high-quality streaming assets. Its strengths center on best-in-class compression and a feature set native to Alliance for Open Media.
When ICO wins
Choose ICO when your workflow prioritizes favicons or desktop icons. It delivers contains multiple resolutions plus modern compression perks.
Technical Specifications
| Feature | AVIF | ICO |
|---|---|---|
| MIME Type | image/avif | image/x-icon |
| Developer | Alliance for Open Media | Microsoft |
| Release Year | 2019 | 1985 |
| Best For | Next-gen web delivery, High-quality streaming assets | Favicons, Desktop icons |
Need to switch?
Where AVIF still wins
Keep AVIF when you need best-in-class compression and workflows depend on next-gen web delivery / high-quality streaming assets. Link those teams directly to the converter above so they can ship ICO deliverables without leaving their browser.
- • Reference the .avif glossary from this page.
- • Embed the conversion CTA in docs, wikis, and onboarding runbooks.
- • Use ICO for favicons while archiving originals as AVIF.
Keep crawlers in the conversion hub
Link this comparison to the relevant tool, glossary, and documentation pages so every crawl discovers a monetizable route.