Make your AVIF images smaller without fuss. Upload one file or many, choose how much smaller they should be, and download the compressed versions individually or as a ZIP. No sign-up needed.
AVIF is a modern image format built on the AV1 video codec. It supports transparency and high dynamic range, and it often produces the smallest files of any web image format at a given quality. Encoding is slower than for JPG or WebP, and older browsers and some apps cannot open it.
More AVIF conversionsClick Select File or drop your AVIF files onto the upload box, open Options to choose how much smaller each file should be (50% by default) and, if you like, a maximum size. The list shows the original and new size of every file.
It depends on the image and your settings. Photographs usually shrink the most and simple graphics the least. The list shows the exact before and after size for every file.
Yes. There is no sign-up and no watermark. To keep the service available for everyone there is a 95MB limit per file and a cap on how many files one connection can process in a short period.
Your upload is used only to make the converted file. Images are processed in memory; other files are written to a private temporary folder that is deleted as soon as the conversion finishes. Nothing is kept after the result has been sent back.
For images, a little, by design: the image is re-encoded at the Quality you choose (default 75%). Audio and video are re-encoded with high-quality settings; documents keep their text and layout as far as the target format allows. Converting never restores detail that is already missing from the original.