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KRA at a glance
KRA
Krita's native format reflects the rise of open-source digital painting as a serious creative workflow rather than only a hobbyist alternative.
JXR at a glance
JXR
JPEG XR grew from Microsoft's HD Photo work and then moved through standards bodies, but it remained much more niche than formats such as JPEG, PNG, or later AVIF/WebP families.
Format comparison
| Feature | KRA | JXR |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2005 | 2009 |
| Inventor | Krita / KDE community | Microsoft |
| Status | proprietary | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | 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 KRA
- Your source file is already in KRA.
- Preserve source expectations before exporting to JXR.
- KRA is commonly used in image workflows.
When to use JXR
- Your target workflow expects JXR.
- Improve delivery compatibility with JXR.
- JXR is commonly used in image workflows.
FAQs
Why convert KRA to JXR?
Convert to JXR when the receiving environment explicitly expects JPEG XR or when recovering historical assets from that ecosystem.
For broader distribution, TIFF, PNG, AVIF, or WebP are usually easier choices.
What changes when converting KRA to JXR?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to JXR removes layer support.
What should I review after converting KRA to JXR?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.