Convert AVIF to JPEG
Drop a AVIF file below and get a JPEG 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
Ctrl/⌘ VPaste a screenshot or copied image
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?
Plenty of websites, content management systems and older desktop programs reject AVIF uploads outright. JPEG is accepted just about everywhere, and that alone accounts for most of these conversions.
Expect the JPEG file to come out larger than the AVIF you started with. That is the price of the broader compatibility and simpler decoding JPEG gives you.
AVIF can carry transparency; JPEG cannot. Transparent pixels are composited onto white during conversion, so a logo with a see-through background will come out sitting on a white rectangle.
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 is the newest of the mainstream web image formats and the most efficient one in wide use — which is exactly why sites are switching to it, and exactly why the file you just saved will not open in half your software. Converting to JPEG trades that efficiency for the one thing AVIF does not have yet: being understood by everything, everywhere, including things built before 2020.
Before you convert
The file will get noticeably bigger
AVIF typically needs around half the bytes of a JPEG for a comparable-looking image, sometimes better. Reversing that is not free: expect the JPEG to be roughly twice the size of the AVIF you started with. There is nothing wrong when this happens — you are moving from a 2019 codec to a 1992 one, and thirty years of compression research is the difference.
HDR and wide colour get flattened
AVIF can store 10- and 12-bit colour and carry HDR metadata. Baseline JPEG is 8-bit and has no concept of HDR. If the source was an HDR photograph, the converted file will look duller and flatter, with highlights that no longer glow — and that difference cannot be dialled back in with a quality slider, because the extra range is simply not representable in the destination.
Transparency and animation both stop here
AVIF supports both; JPEG supports neither. Transparent areas get filled with white and animated sources arrive as a single frame. If either matters, PNG or WebP will take you further.
What carries over
- Pixel dimensions
- The image as an 8-bit picture
- Universal compatibility
What does not
- Roughly half the compression efficiency
- 10/12-bit colour depth and HDR
- Transparency and animation
AVIF vs JPEG at a glance
| Property | AVIF | JPEG |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | Yes | No |
| Typical file size | 40-55% of an equivalent JPEG | 100% of an equivalent JPEG |
| Compatibility | All current browsers; some older desktop apps lag behind | Opens everywhere, including decades-old software |
| Usually comes from | Websites optimising page weight | Digital cameras and photo sharing |
Frequently asked questions
Are my AVIF files uploaded anywhere?
No. The decoder and encoder are WebAssembly modules that run inside this page. The network tab may show a codec downloading the first time you use a format, but no request contains your file. On supported browsers, a codec that has already been used is cached so the same conversion can work offline.
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 lose quality?
JPEG 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.
What quality setting should I use?
For photographs, 75 to 85 is the range where most people cannot tell the result from the original at normal viewing size. Below about 60 you start seeing blocky artefacts around sharp edges. Above 90 the file grows quickly in exchange for very little visible gain.