Convert AVIF to JPG
AVIF is the newest web image format — great compression, but many editors, printers and forms still reject it. Convert your AVIF files to universal JPG in one step, locally in your browser.
100% private: files are processed in your browser and never uploaded to any server.
How it works
- Drop one or more AVIF files into the box above.
- Each image is decoded and re-saved as a high-quality JPG.
- Download your JPG files — they now open everywhere.
What AVIF is and why you have one
AVIF is the still-image format derived from the AV1 video codec, and it currently compresses better than anything else in wide use — frequently half the size of a JPEG at matching quality, with support for transparency, wide colour gamut and high dynamic range. Sites that care about page weight have been adopting it steadily, which means saving an image from the web increasingly hands you an .avif file.
Browsers show it without complaint. Everything else is patchier: desktop image viewers, older editing software, print workflows and most upload forms have not caught up, so the file that displayed perfectly a second ago refuses to open on your own machine.
Converting down to a universal format
Going from AVIF to JPEG trades efficiency for acceptance. The resulting file will usually be considerably larger — that is simply what a fifteen-year-old codec costs — and, being a second lossy encode, it carries a little added degradation that is invisible at sensible quality settings.
AVIF's headline features are the ones that cannot follow. High dynamic range and ten-bit colour have no representation in a standard JPEG, so an image with very bright highlights may look a little flatter after conversion. Transparency is dropped, with transparent areas filled white; convert to PNG instead if the background must stay clear.
Good to know
AVIF is the newest of the web image formats and compresses 40–50% better than JPG, which is why more and more sites serve it. The flip side is that when you save one of those images you get a file that many applications outside the browser still cannot open.
The decoding here uses your browser's own native AVIF support, so the conversion is fast and nothing is uploaded. The result is re-encoded as a high-quality JPG; if the AVIF had transparency it is filled with white, since JPG has no alpha channel.
If everything you use handles AVIF, there is no reason to convert — it is the smaller, better file. Convert when compatibility is the point: older software, printing, or an upload form that rejects it.
Read more: WebP and AVIF explained
Frequently asked questions
Where do AVIF files come from?
More and more websites serve AVIF because it compresses 30–50% better than JPG. When you save one of those images, you get a .avif file that many apps cannot open yet.
Does converting AVIF to JPG lose quality?
The tool re-encodes at high quality, so the difference is imperceptible in normal use. Transparency, if present, is filled with white (JPG has no alpha channel).
Why not keep the image as AVIF?
If everything you use supports AVIF, keep it — it is smaller. Convert to JPG when compatibility matters: old software, printing services, upload forms.
Is the conversion private?
Yes. Your browser decodes AVIF natively and the conversion runs on your device; no file is uploaded.
Why will my computer not open an AVIF file?
Support outside browsers is still incomplete. Recent versions of Windows and macOS handle it, but older systems and most third-party image software do not, which is exactly why converting to JPEG is often the quickest fix.
How much bigger will the JPEG be?
Commonly one and a half to two times the AVIF, sometimes more. If the size matters, compress the JPEG to a target afterwards.