AVIF to WebP Converter
Move AVIF images to WebP for a slightly friendlier modern format.
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Accepted: .avif,image/avif · Max 24 MB
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About this tool
AVIF and WebP are both modern web formats, but WebP has been around longer and enjoys wider support across browsers and tools. Converting between them is useful when a target platform accepts WebP but not yet AVIF, or when a build pipeline is standardized on WebP. This tool relies on your browser's AVIF decoder, then re-encodes the pixels as WebP. Alpha transparency carries through, and files usually stay small since both formats compress efficiently. Everything runs locally, one image at a time, up to roughly 25MB.
FAQ
Some tools and older browsers cannot open AVIF, but do accept WebP.
Yes — WebP supports alpha, so the AVIF's transparency carries over.
No. The conversion runs locally in your browser.
AVIF usually wins on size, but WebP is close and better supported today.
More about this tool
How it works
- Choose an AVIF file to convert.
- The browser decodes the AVIF and encodes the pixels as WebP.
- Download the WebP file when it appears.
Features
- AVIF decode required — Your browser must be able to open AVIF for the conversion to work.
- Transparency retained — Alpha channels transfer from AVIF into the WebP output.
- Both stay light — WebP is efficient, so the output remains a lean web asset.
- Modern-to-modern — Best when the target pipeline expects WebP as its canonical format.
- Runs locally — The source AVIF stays on your device.
Supported formats
Input: AVIF. Output: WebP (alpha preserved).
Input
-
AVIF avif
Output
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WebP webp
Common uses
- Standardising on WebP — Feed a build pipeline that expects WebP inputs.
- Targeting a wider browser set — WebP support is currently broader than AVIF in some environments.
- CDN-friendly assets — Deliver small, transparent images that most CDNs can cache and serve easily.
Limitations
- Fails without an AVIF-capable browser.
- Very old browsers may not display WebP either.
- Both formats are lossy by default; expect subtle re-encoding differences.
- One image at a time, up to around 25MB.