Guide
Converting AVIF images to WebP for wider compatibility
AVIF is the most efficient image format browsers support today, and more websites, image CDNs and design tools save in it. Not everything reads it yet. Older versions of image editors, office software, some content management plugins, messaging apps and many photo viewers handle WebP but stumble over AVIF. This tool converts AVIF images to WebP so they open in more places while staying compact.
Why convert in this direction
WebP has had broad support for years: it is understood by every current browser, by Windows and macOS image viewers, by WordPress and by most image editors. AVIF arrived later and some tools still lag behind. Converting to WebP is a practical compromise when you need a modern, small format that works with software AVIF has not reached yet.
What happens to size and quality
AVIF compresses better than WebP, so the converted file is normally somewhat larger, often by 20 to 50 percent at the same visual quality. Because the AVIF was already compressed once, using a very low WebP quality stacks two kinds of artifacts and should be avoided. The default of 90 percent preserves the look; drop to 80 if size matters more than the last bit of detail.
Transparency stays intact
Both formats store a full alpha channel with soft edges. A transparent logo or product cut-out converts to a transparent WebP with the same smooth outline, ready to place on any background. No background color is needed.
How decoding works on every browser
When your browser can display AVIF, it decodes the image itself, which is fast. If it cannot, the page loads libavif compiled to WebAssembly and decodes the file locally instead. Either way the image stays on your device. Damaged or cut-off files produce a clear message rather than a broken result.
Safari and WebP output
Safari shows WebP but cannot encode it. In Safari, the page explains this before you convert; use Chrome, Edge or Firefox, or choose AVIF to PNG for a lossless file that any browser can produce.
Resizing during conversion
Switch on “Limit size” to cap the longest side, useful when AVIF images exported from a camera app or design tool are much larger than the place they will be used. The image is reduced in halving steps with high-quality smoothing before encoding.
Batch use
Add many AVIF files at once, for example a folder of images downloaded from a site that serves AVIF. Each converts separately and shows its result size; download them one by one or all together.
Where AVIF files come from
You often get AVIF without asking for it. Image CDNs serve it to browsers that accept it, so “Save image as” on a news site or shop can save an .avif file. Recent Android phones and some cameras can shoot AVIF, and design tools like Figma plugins or Squoosh export it. Netflix artwork, game screenshots and stock previews increasingly arrive in this format too. Whatever the source, a WebP copy is easier to drop into slides, chat apps and older editors.
Picking the right target
For maximum compatibility with print shops, email and legacy tools, AVIF to JPG is the safest choice. For editing without further loss, AVIF to PNG. To go the other way and shrink JPG or PNG images, Image to AVIF creates AVIF files in the browser.
Checked against the current version of the AVIF to WebP on .