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ICO at a glance
ICO
ICO grew with the Windows desktop experience, where applications needed icons that scaled across shell views, toolbars, shortcuts, and later higher-DPI environments.
WEBP at a glance
WEBP
Google announced WebP in 2010 for faster image delivery on the web, and the format is now documented in RFC 9649.
Format comparison
| Feature | ICO | WEBP |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1985 | 2010 |
| Inventor | Microsoft | |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use ICO
- Your source file is already in ICO.
- Preserve source expectations before exporting to WEBP.
- ICO is commonly used in image workflows.
When to use WEBP
- Your target workflow expects WEBP.
- Improve delivery compatibility with WEBP.
- WEBP is commonly used in image workflows.
FAQs
Why convert ICO to WEBP?
Convert to WebP when delivering images for the web or apps and you want strong compression with support for transparency or animation.
It is a practical target for responsive sites, ecommerce, editorial media, and interface assets.
What changes when converting ICO to WEBP?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to WEBP adds animation support.
What should I review after converting ICO to WEBP?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.