Convert WebP to AVIF Online
Saved a .webp off the web and your software will not open it? Turn it into AVIF.
Drop your WebP file here
or click to select
How WebP to AVIF works
Upload WebP
Drag & drop or click to select your WebP file.
Choose Options
Adjust quality, size, or other output settings if needed.
Download AVIF
Click Convert and your AVIF file downloads instantly.
About WebP to AVIF conversion
AVIF is the next step down in file size — typically another 20-30% below WebP at the same visual quality, with HDR and wide-gamut colour WebP cannot represent. Worth it for hero images and photo-heavy pages. WebP is a delivery format, not a working format. Browsers render it everywhere, but the moment a .webp leaves the browser it hits software that never caught up — Photoshop only added WebP support in version 23.2, Office before 2021 will not place one, Outlook will not render one inline, and a long tail of upload forms validate against a hard-coded list that has never heard of it.
AVIF — AV1 Image File Format — is lossy or lossless av1 intra-frame with full alpha and support described as: chrome 85+, firefox 93+, safari 16.4+, edge 121+. Where WebP is optimised for the last hop to a browser, AVIF is what the software on the other side of that hop is expecting. Converting is a one-step fix for the "this file type is not supported" wall.
Size is the trade-off worth knowing about: AVIF files are typically 20-30% smaller than WebP at matched quality. Serve AVIF through a
Where AVIF comes from
AVIF was published by the Alliance for Open Media in 2019, wrapping the royalty-free AV1 video codec in a still-image container. It compresses considerably harder than WebP and adds 10- and 12-bit colour, HDR and wide gamut. The catch is encode time — AVIF is dramatically slower to produce — and browser support that is broad but still younger than WebP's, which is why most sites serve AVIF with a WebP fallback rather than instead of it.
WebP vs AVIF at a glance
| WebP | AVIF | |
|---|---|---|
| Compression | Lossy VP8 or lossless VP8L | Lossy or lossless AV1 intra-frame |
| Transparency | Full 8-bit alpha in both modes | Full alpha |
| Animation | Native animation support | Supported |
| Colour depth | 8-bit per channel, sRGB | Up to 12-bit per channel, HDR and wide gamut |
| Where it opens | Every current browser; patchy in desktop applications | Chrome 85+, Firefox 93+, Safari 16.4+, Edge 121+ |
| Typical file size | The baseline | Typically 20-30% smaller than webp at matched quality |
Real-world workflow — Getting a web-saved image into software that rejects WebP
- Save an image from a web page and find it lands as a .webp
- The target application refuses it outright — a common wall with AVIF workflows
- Drop the .webp here and convert it to AVIF
- Set the options the destination needs (size, page format, colour handling)
- Import the AVIF file — it opens without complaint
Recommended conversion settings
| Use case | Settings |
|---|---|
| Sharing and general use | Quality 85 |
| Uploading to a form with a size cap | Resize to the maximum accepted dimensions before converting |
| Printing | Keep full resolution and leave metadata intact for colour profiles |
| Editing afterwards | Convert once from the best source — avoid round-tripping through AVIF repeatedly |
| Privacy-sensitive images | Enable strip metadata to remove EXIF, GPS and camera identifiers |
Where will your AVIF file open?
| Platform | WebP | AVIF |
|---|---|---|
| Chrome / Edge / Firefox | ✓ | ✓ |
| Safari 14+ / iOS 14+ | ✓ | ✓ |
| Windows Photos | ✓ | ~ |
| macOS Preview & Quick Look | ✓ | ✓ |
| Adobe Photoshop | ~ | ~ |
| Microsoft Office 2021+ | ✓ | ✗ |
| Email clients (Outlook, Gmail) | ✗ | ✗ |
| Social media uploaders | ~ | ~ |
| Print & prepress (RIP) | ✗ | ✗ |
When to convert WebP to AVIF
AVIF is the next step down in file size. Built on the royalty-free AV1 video codec and published in 2019, it typically lands another 20–30% below WebP at the same visual quality, and adds 10- and 12-bit colour, HDR and wide gamut that WebP cannot represent at all. For photo-heavy pages and hero images, that is a meaningful further win.
The trade-offs are encode time and reach. AVIF is dramatically slower to encode, which matters if you are processing thousands of images in a build step. Browser support is broad — Chrome 85+, Firefox 93+, Safari 16.4+, Edge 121+ — but younger and slightly thinner than WebP's, and desktop application support lags further behind.
The standard pattern is to serve both: an AVIF source inside a <picture> element with a WebP fallback and a JPG fallback beneath that. Modern browsers take the smallest file, everything else degrades cleanly. webp.now can produce every step of that ladder from the same source.
WebP to AVIF tips
- If the goal is simply "make this open in my software", AVIF is usually the right call — but check whether the destination accepts PNG or JPG first, since those are accepted even more widely.
- Convert from the highest-quality WebP you have. Each lossy re-encode costs a little detail, and starting from an already-compressed copy compounds it.
- Strip metadata before sharing. Images saved from the web can carry the original photographer's EXIF, including camera serial and, occasionally, GPS coordinates.
- Batch the job rather than converting one at a time — the queue runs conversions in parallel and returns a single zip.
- Keep the .webp original if the image is also going back onto a web page. Serving the AVIF version instead will cost you page weight.
Related tools
Formats involved
WebP – Web Picture Format (Google)
AVIF – AV1 Image File Format
WebP to AVIF — frequently asked questions
Related guides & articles
Maybe you wanted something else?
- You just need something that opens everywhere → WebP to JPG
- You need to keep the transparency → WebP to PNG
- You are submitting this to a portal or form → WebP to PDF
- The file is simply too big → Compress WebP
- You want to pick a different output format → Image Converter
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