Convert AVIF to WebP

Turn AVIF files into WebP without uploading anything. Drop in one image or a whole folder, adjust the quality, and download the results.

Drop AVIF images hereAdd one image or a whole batch, then pick your settings.Choose AVIF imagesPNG, JPG, WebP, and AVIFStays on your device, never uploaded

What this tool does

  • AVIF to WebP at full resolution
  • Batch conversion with a single zip download
  • Quality control for the output file size
  • Runs fully in the browser, no upload
  • Free, no signup, no watermark

What AVIF is good at

AVIF applies the AV1 video codec to still images, which buys it the best compression in general use: lossy and lossless modes, an alpha channel, and 10 and 12-bit colour with HDR. Files are commonly half the size of an equivalent JPG and a small fraction of a PNG. Encoding is slower than the older formats, which is the price of the ratio.

What WebP gives you

WebP has both a lossy and a lossless mode and supports transparency in both, which is what lets it replace PNG and JPG at once. At matching visual quality it is typically 25 to 35 percent smaller than JPG and meaningfully smaller than PNG for the same graphic. Its one hard limit is dimensional: neither side can exceed 16,383 pixels.

Converting AVIF to WebP

WebP is supported by every browser and by plenty of older software that still cannot open AVIF, while staying far smaller than PNG or JPG. Transparency survives the conversion, so a AVIF with a cut-out subject stays cut out as WebP. Re-encoding always costs something, so convert from the highest-quality copy you have rather than from an already-compressed export. The result supported by every current browser, though some older desktop software still cannot open it.

Frequently asked questions

WebP is supported by every browser and by plenty of older software that still cannot open AVIF, while staying far smaller than PNG or JPG.

Pick WebP when the image is going on a website or has transparency: it stays small and every current browser supports it. Pick JPG when the file is going to an older app, a print service, or an email, where WebP support is patchy.

No. Because the conversion happens on your own machine there is no server quota to hit. The practical limit is your device's memory, and files are processed one at a time to keep that manageable.

No. Every tool on this page runs entirely in your browser using the Canvas and Web Worker APIs. Your files are read from disk, processed in the tab, and written straight back to your downloads folder. Nothing is uploaded, stored, or logged, which also means the tool keeps working if you go offline after the page loads.

It is completely free with no signup, no account, no daily limit, and no watermark. Screenshot Studio is open source under the Apache 2.0 licence.

Related tools

WebP to AVIFAVIF to JPGAVIF to PNGPNG to WebPJPG to WebPConvert Image

Need more than a quick fix? The screenshot editor adds backgrounds, frames, and shadows. You can also remove an image background.