AVIF to JPG converter
You downloaded an image and got a .avif that nothing on your computer will open. This turns it into a JPG, on your own device, in about a second.
Why the browser shows it and nothing else will
AVIF is spreading quickly on the web because it makes pages much lighter. Software outside the browser has not kept up. Windows needs an extension, most desktop image viewers show nothing, and a lot of editing software has never heard of it.
This puts people in an odd position: the browser displays the picture perfectly, and the moment it is saved to disk it becomes unopenable. Converting to JPG is the way out, and this page can do it because the browser already knows how to decode AVIF.
Why the JPG comes back several times the size
The size jump on this conversion is larger than on any other pair here, and two specific tricks inside AVIF explain most of it.
The first is film grain synthesis. AVIF is a still frame of AV1, a video codec, and AV1 can strip the grain out of a picture, store a short mathematical recipe for it, and have the decoder paint fresh grain back on at display time. Grain is the single hardest thing for any compressor to store, because it is noise by definition, so removing it and faking it later is an enormous saving. By the time the picture reaches this page it has already been decoded — the grain is ordinary pixels again — and JPG has no choice but to store every one of them.
The second is bit depth. AVIF routinely codes 10 or 12 bits per channel and can carry HDR. The picture is decoded here into an ordinary browser canvas, which is 8 bits per channel in sRGB, so the browser narrows it on the way in. That part is not a loss the JPG caused — JPG is 8-bit and could not have held it anyway — but it does mean an HDR AVIF comes out looking like the tone-mapped version your browser was already showing you, not like the original.
Worth saying what this page does not have: an AVIF decoder of its own. It uses the browser’s, which is why the conversion is fast and why nothing needs downloading. In a browser too old to read AVIF at all, you are told the file could not be opened rather than handed something wrong — the same rule the whole site follows, that a format the browser cannot handle is reported instead of silently substituted.
AVIF, answered plainly
Why can my computer display AVIF in the browser but not in the file viewer?
Browsers ship their own image decoders. Your operating system has a separate set, and AVIF has not reached all of them yet. The picture is fine; the software around it has not caught up.
Can I get the original quality back?
No converter can. The AVIF was already compressed lossily, and JPG adds a second pass. The result is close, not identical.
Why is the JPG so much bigger than the AVIF was?
Mostly because AVIF can describe film grain as a recipe and let the decoder paint it, while JPG has to store the grain as pixels. Add AVIF being a far newer and more efficient codec generally, and doubling or more is the normal result.
Should I convert to PNG instead?
Yes, if the image has a transparent background or you plan to edit it repeatedly. PNG keeps both, at the cost of a much larger file.
What the JPG cannot carry over
- Transparency is lost, because JPG cannot store it. Transparent areas are filled with white before the JPG is written. Convert to PNG instead if the image is a logo or a cut-out.
- The file gets bigger, often a lot bigger, since AVIF is far more efficient. Doubling or more is normal.
- It is a second lossy encode, at a quality of 90, so a small amount of quality is given up. At normal viewing size this is not visible.
Turning an AVIF into a JPG
- JPG is already selected above.
- Drop your AVIF images in, or click to browse.
- Download the result. It never left your device.
If the picture will not open here, the browser is too old to decode AVIF; a current Chrome, Edge, Firefox or Safari will.
Nothing is uploaded
It runs on your device. Turn the network off mid-conversion and it still finishes — or check any converter yourself.
Free, and no account
No signup, no watermark, no upgrade prompt. No size cap beyond your own device, and up to 50 pictures a go.
If JPG flattens something you needed
- AVIF to PNG Keeps the transparent background that JPG would flatten.
- HEIC to JPG The iPhone photo that Windows refuses to open.
- WebP to JPG The image you saved from a website that nothing will open.
- PNG to JPG For the screenshot that is too big to attach.
Or open the image converter to pick any combination, and the image compressor when the problem is size rather than format.