How AVIF compresses images
AVIF comes from the Alliance for Open Media and applies the AV1 codec, which was designed for video, to single frames. Larger prediction blocks and smarter filtering let it discard detail that the eye forgives more accurately than older formats.
The format covers lossy and lossless modes, transparency through an alpha channel, high dynamic range, and animation. That breadth makes it a candidate for replacing several formats at once.
Where AVIF works and where it stalls
Major browsers display AVIF, and several large sites serve it with fallback files. At equal quality it often lands below JPEG and WebP, which is the whole point of adopting it.
Support in editors, upload forms, and older desktop software still lags. Many pipelines that promise JPEG or PNG will reject an AVIF, so a second copy is usually required.
- Large photos on sites that also serve a fallback
- Libraries that must stay under tight storage limits
- Modern browsers and current mobile devices
- Workflows that can keep a JPEG copy on hand
AVIF support in Filekind
Filekind does not convert AVIF today. The converter handles JPEG, PNG, and static WebP, so an AVIF must be exported to one of those formats in other software first.
Once a supported file exists, conversion and compression happen in the browser under the standard limits of 25 MB, 16,000 pixels per side, and 48 megapixels, with no upload of your images.