Convert AVIF to JPEG XL
Drop a AVIF file below and get a JPEG XL back. The conversion happens on your own machine, so nothing is uploaded and there is no size or quantity limit beyond what your browser can hold in memory.
Drop images here
Accepts AVIF
Lower means a smaller file. 75 is a good default for photos.
100% in your browser Files are never uploaded.
Why convert AVIF to JPEG XL?
Both formats are lossy. Every re-encode discards a little more detail, so it is worth starting from the original rather than from a copy that has already been through this a few times.
AVIF vs JPEG XL at a glance
| Property | AVIF | JPEG XL |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | Yes | Yes |
| Typical file size | 40-55% of an equivalent JPEG | 45-60% of an equivalent JPEG |
| Compatibility | All current browsers; some older desktop apps lag behind | Safari and recent Chrome; still uncommon elsewhere |
| Usually comes from | Websites optimising page weight | Long-term archives and photography workflows |
Frequently asked questions
Are my AVIF files uploaded anywhere?
No. The decoder and encoder are WebAssembly modules that run inside this page. You can verify it by opening your browser’s network tab — converting a file produces no outbound requests. You could even disconnect from the internet after the page loads and it would still work.
Is there a file size or quantity limit?
There is no limit imposed by us. The practical ceiling is your device’s memory, since the image has to be held uncompressed while converting. On a typical laptop, images up to around 100 megapixels convert without trouble.
Will converting to JPEG XL lose quality?
JPEG XL is a lossy format, so some data is discarded. At the default quality setting the difference is not visible at normal viewing sizes. If you need an exact copy of the pixels, choose PNG instead.
Does it work on a phone?
Yes. The same WebAssembly modules run on mobile browsers. Conversion is slower than on a desktop because phone CPUs are weaker, and very large images are more likely to hit memory limits.
Where do AVIF files come from?
Almost always from a website. AVIF compresses better than anything else in wide use, so sites that care about page weight serve it. Cameras and phones do not produce it, which is why most people only meet AVIF when saving an image from the web.
Is JPEG XL ready to use?
Partly. Safari has supported it for some time and Chrome shipped stable support in early 2026, but overall coverage still sits around 15%. It is a sound choice for archiving, where compression quality matters more than universal support, and a poor one for images going onto a public website today.