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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.
XBM at a glance
XBM
Before today's relatively small set of mainstream consumer image formats dominated everyday use, desktop software, workstations, GUI systems, and early graphics tools produced many specialized raster formats with local importance.
Format comparison
| Feature | WEBP | XBM |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2010 | 1985 |
| Inventor | MIT X Consortium | |
| Status | active | legacy |
| Transparency | Not supported | Not supported |
| Animation | Supported | Not 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 WEBP
- Your source file is already in WEBP.
- Preserve source expectations before exporting to XBM.
- WEBP is commonly used in image workflows.
When to use XBM
- Your target workflow expects XBM.
- Improve delivery compatibility with XBM.
- XBM is commonly used in image workflows.
FAQs
Why convert WEBP to XBM?
Convert to XBM when preserving legacy X11 bitmap assets or interfacing with very old Unix UI workflows.
In modern contexts it is chiefly a compatibility target.
What changes when converting WEBP to XBM?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to XBM removes animation support.
What should I review after converting WEBP to XBM?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.