Convert AVIF to JPG

AVIF is the newest of the modern image formats to gain real traction, and it currently has the best compression efficiency of the bunch — smaller files than JPG, smaller than WebP, at comparable visual quality. That efficiency is exactly why you’re likely to encounter it: an increasing number of sites now serve AVIF to capable browsers by default, which means saving or downloading an image from one of those sites can hand you a file format that, despite being genuinely excellent on the web, still struggles to open almost everywhere else.

A newer format means a smaller compatibility footprint

AVIF is based on the AV1 video codec, repurposed for still images, and it’s considerably younger than WebP, which itself only became broadly supported across browsers a few years ago. Software outside the browser tends to lag behind browser support by a meaningful margin — WebP took years to become reliably supported across photo editors, email clients, and business software, and AVIF is earlier in that same adoption curve. The practical result: an AVIF file that displays perfectly in your browser may simply refuse to open, or open with errors, in a photo editor, an email attachment preview, an upload form, or a printing service’s web portal.

Why JPG remains the safe target

When the actual problem is compatibility rather than quality or file size, JPG is still the most reliable choice available. It’s one of the oldest image formats in continuous use, supported by essentially every piece of software that has ever handled images, with no exceptions worth worrying about. Converting an AVIF file to JPG trades away some of AVIF’s compression efficiency — the resulting file will typically be larger for the same visual quality — in exchange for being able to actually open and use the image in whatever you need it for.

What happens during the conversion

The tool decodes the AVIF file’s compressed image data into raw pixels, then re-encodes that pixel data as a standard JPG. Since both AVIF and JPG are lossy formats, this introduces a small amount of additional generational quality loss on top of whatever AVIF’s own compression already discarded — in practice, at a sensible JPG quality setting, this additional loss is rarely visible without close, deliberate comparison. If the original AVIF image included transparency (less common than in WebP or PNG, but technically supported by the format), that transparency is lost in the conversion, since JPG has no way to represent it; converting to PNG instead would preserve it.

Why you’ll likely need this again

AVIF adoption on the web is still climbing, which means encountering AVIF files when saving images from websites is likely to become more common, not less, over the next few years. Keeping a quick way to convert back to a universally-compatible format on hand is a reasonable thing to have ready, rather than something you’ll only need once.

How it works

Add your AVIF file

Typically an image saved or downloaded from a modern website — AVIF is increasingly used as a smaller alternative to JPG and WebP for photos.

Decoded and re-encoded as JPG

AVIF support outside browsers is still patchy, so most software needs the image in a more universally-recognized format like JPG to open it at all.

Download a widely-compatible JPG

JPG opens in essentially anything — older editors, email clients, upload forms, printing services — unlike AVIF, which much of that software still can't read.

Frequently asked questions

What is AVIF, and why am I getting files in this format?

AVIF is a relatively new image format based on the AV1 video codec, and it currently produces some of the smallest file sizes available for a given visual quality — often beating both JPG and WebP. Browser support has grown quickly, so an increasing number of websites now serve AVIF by default to anyone whose browser supports it, which is most modern browsers. You end up with an AVIF file mainly by saving or downloading an image from one of these sites.

Why won't my AVIF file open in my photo editor or email?

AVIF is newer than WebP, and adoption outside browsers has lagged even further behind. A lot of currently-installed software — photo editors, especially older versions, many email clients, plenty of upload forms and business tools — either has no AVIF support at all or only added it very recently. JPG remains the safer bet for anything you're not certain will handle AVIF correctly.

Will converting to JPG lose much quality?

Some, since you're converting between two lossy formats, but typically not by much at a reasonable JPG quality setting. The bigger practical change is file size: AVIF is generally more space-efficient than JPG, so the JPG version of the same image will usually be somewhat larger for comparable visual quality — that's the tradeoff for gaining much broader compatibility.

Does AVIF support transparency, and what happens to it?

Yes, AVIF can include an alpha channel, though it's used less often than in WebP or PNG since AVIF is mostly chosen for photographic content where transparency isn't relevant. If your AVIF file does have transparency, converting to JPG will flatten it onto a solid background, since JPG can't represent transparent pixels — convert to PNG instead if you need to keep it.

Is AVIF going to replace JPG eventually?

For web delivery, it's heading that direction — many sites already serve AVIF or WebP to capable browsers while falling back to JPG for others, getting the size benefits without breaking compatibility. For general-purpose use outside the browser, JPG's decades of universal support make it likely to stick around as the safe, compatible default for a long while yet, even as AVIF keeps gaining ground for the cases where smaller file size matters most.