PropertyAVIFJPEG
Extension.avif.jpg
MIME typeimage/avifimage/jpeg
TransparencyYesNo
AnimationYesNo
Lossless modeYesNo
Lossy modeYesYes
Practical recommendation
Use AVIF for web delivery where your browsers and tooling support it, with a JPEG or WebP fallback, and keep JPEG for maximum compatibility.
Frequently asked questions
Is AVIF better than JPEG?
AVIF can match JPEG quality at smaller sizes and supports transparency, but it encodes more slowly and is less widely supported. JPEG remains the most compatible choice.
Should I serve AVIF on my website?
Where your browsers and tooling support it, with a JPEG or WebP fallback. Test on your own images.
How do I convert JPG and AVIF?
Use FreeImageKit's JPG to AVIF or AVIF to JPG converter. They run in your browser, and source metadata is not carried over.
Read the format guides
Last updated