Convert WebP to AVIF Online Free
Free WebP to AVIF converter. Upgrade your images to next-gen compression with smaller file sizes — no upload, no registration.
Drop image files here
Or click to browse. Max 30 files per batch. Max 10MB per file.
100% Client-side SecureHow to Convert WebP to AVIF
Upload WebP Files
Drag and drop your .webp files into the converter, or click to browse. Upload up to 30 WebP files at once for batch conversion.
Set AVIF Quality
Adjust the quality slider for AVIF output. A setting of 60–75% delivers excellent results with significant size savings over WebP.
Download AVIF Files
Download each AVIF file individually or save all as a ZIP archive. Your files are ready to use immediately — no account needed.
Why Convert WebP to AVIF?
Upgrade to the most advanced image format available today.
Your Files Never Leave Your Browser
Your WebP images are converted to AVIF entirely in your browser using client-side processing. No files are ever uploaded to any server — your images stay private on your device.
Instant Conversion, Zero Wait
No upload time, no server queue. Conversion starts immediately in your browser, so even large batches are processed in seconds.
Next-Gen Compression
AVIF uses AV1 compression technology, delivering 10–20% smaller files than WebP at equivalent visual quality. HDR and wide color gamut are also supported.
WebP vs AVIF: See the Difference
AVIF takes compression further. Compare file size and visual quality side by side.
Drag the slider to compare
When Should You Switch to AVIF?
Upgrade Your Image Pipeline
AVIF is the next step after WebP — 10–20% better compression using AV1 technology. Convert your WebP library to the latest standard today.
Reduce Bandwidth & Storage Costs
Already using WebP? AVIF squeezes out even more savings. A 100 KB WebP image can drop to 80–90 KB in AVIF at identical visual quality.
HDR & Wide Color Gamut
WebP is limited to 8-bit color. AVIF supports 10-bit and 12-bit HDR content, making it ideal for high-dynamic-range photos and modern displays.
Future-Proof Your Assets
AVIF browser adoption is growing rapidly. Converting your WebP images to AVIF now ensures your assets are in the most future-proof format available.
WebP vs AVIF — Full Comparison
AVIF builds on WebP's strengths with AV1 technology.
| Feature | WebP | AVIF |
|---|---|---|
| Compression Algorithm | VP8 / VP9 | AV1 |
| File Size vs JPG | ~25–35% smaller | ~50% smaller |
| File Size vs WebP | Baseline | 10–20% smaller |
| Visual Quality | Good | Better at same size |
| Transparency (Alpha) | Yes | Yes |
| HDR Support | No (8-bit only) | Yes (10-bit, 12-bit) |
| Animation | Yes (animated WebP) | Yes (AVIF sequence) |
| Browser Support | Chrome 32+, Safari 14+ | Chrome 85+, Safari 16.4+ |
Tool Specifications
Frequently Asked Questions
Yes. AVIF typically achieves 10–20% smaller file sizes than WebP at the same visual quality, using the more advanced AV1 compression algorithm. AVIF also supports HDR (10-bit, 12-bit) color depth, which WebP does not.
Yes. AVIF fully supports the alpha channel. Any transparent areas in your WebP images will be perfectly preserved in the converted AVIF output.
Absolutely. Avifkit uses client-side processing — your images are converted entirely within your browser's memory and are never uploaded to any server. Your files never leave your device.
AVIF is supported in Chrome 85+, Firefox 93+, Edge 121+, and Safari 16.4+, which covers roughly 93% of global users. For older browsers, use the HTML 'picture' element to serve AVIF with a WebP or JPG fallback.
AVIF files are typically 10–20% smaller than WebP at equivalent visual quality. The savings are most pronounced on photographic content and complex images with lots of detail.
Each file can be up to 10 MB. Since all processing happens in your browser, larger files may take slightly longer depending on your device's performance — but there are no server-side restrictions.
Yes. Upload up to 30 WebP files at once for batch conversion. Once converted, download files individually or as a single ZIP archive.
If your audience primarily uses modern browsers, yes. Use AVIF as the primary format and provide WebP or JPG fallbacks via the 'picture' element. You'll gain 10–20% additional bandwidth savings with no perceptible quality difference.
No. Avifkit runs entirely in your browser — no registration, no software installation, no watermarks, and no usage limits. Just open the page and start converting.
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Avifkit.com is a free online file converter that allows you to convert media easy and fast from one format to another. We support many different source formats like AVIF, WEBP, HEIC, and output formats like JPG, PNG.