Why convert WebP to AVIF
- Migrating an existing WebP image set to AVIF.
- Comparing both formats side by side on your own images before committing.
How to convert WebP to AVIF in ConvertX
- 1
Open Image Converter
On the Home screen tap Image Converter.
- 2
Select your WebP files
Tap "Select image files" and pick the WebP images (.webp). On desktop you can also drag them in from Explorer or Finder.
- 3
Choose AVIF as the target
In the output format list choose AVIF.
- 4
Optional settings
Add a rename pattern (use {name} for the original file name), turn on "Keep photo details" if you want camera and location data copied into JPG, PNG or WebP output, and pick an output folder (Android default: Pictures/ConvertX).
- 5
Start the batch
Tap "Convert N images". The Queue opens and processes them in order; you can stop one file or the whole batch.
- 6
Find the results
When the batch finishes, the summary shows the files converted and the space saved. Tap View Library to browse them, or find them in the output folder.
What to know before you convert
- WebP to AVIF is lossy to lossy; artefacts in the WebP stay. Convert from the original JPG or PNG when you still have it.
- Animated WebPs convert as their first frame.
- ConvertX cannot read AVIF back; keep the WebP.
WebP vs AVIF: what changes
| WebP | AVIF | |
|---|---|---|
| Compression | Lossless: optional | Lossy |
| Transparency | Yes | Yes |
| Animation | Yes | No |
| Keeps EXIF in ConvertX | Yes | No |
| ConvertX reads it | Yes | No |
| ConvertX writes it | Yes | Yes |
| Extensions | .webp | .avif |
WebP: Google's web format: about a third smaller than JPG, with optional transparency and lossless mode. AVIF: The newest format, smallest files, still not opened by everything. ConvertX writes it but cannot read it.
Nothing is uploaded
ConvertX converts on the device. There is no server, no account and no file size or count limit beyond your storage. Location and camera details are removed from every output unless you turn on "Keep photo details" (AVIF output never carries them in ConvertX).
Frequently asked questions
Should I convert from WebP or from the original?
From the original (JPG, PNG, TIFF) whenever you still have it; re-encoding a lossy WebP compounds the loss.
Is the saving worth it?
For photographic content, usually 20–50 %. For small icons, often not.
Will it keep transparency?
Yes, AVIF supports alpha.
Related
- About WebPGoogle's web format: about a third smaller than JPG, with optional transparency and lossless mode.
- About AVIFThe newest format, smallest files, still not opened by everything. ConvertX writes it but cannot read it.
- JPG to AVIFConvert JPG to AVIF offline, in bulk
- PNG to AVIFConvert PNG to AVIF offline, keep transparency
- WebP to JPGConvert WebP to JPG offline, in bulk
- Compress WebPCompress WebP files offline, in bulk
Ready? Download ConvertX: free, with no ads, on Android and desktop.