Convert AVIF to JPG
For the newest image format that most software still cannot open.
- Nothing is uploaded
- Works offline after first visit
- Open source
- No watermark · limit is your device’s memory; phones hold less
Convert AVIF images to JPG in your browser so they open anywhere. It is free, needs no account and adds no watermark, and your files are not uploaded: everything runs in your browser on your device. The size limit is your device’s memory, and phones hold less; give the page a short while after one visit to save itself for offline use, and then it works offline.
Done
Free, no ads. Support StayPut
Open the network tab. Your files never appear in it.
Add files and run the tool to see every request this tab makes.
Your files are processed on this device and never sent to a server. Reload the page to clear everything from memory.
AVIF is the image format built on the AV1 video codec. Websites use it because it is even smaller than WebP, but if you save an AVIF from a site you will find that many editors, viewers and upload forms do not know what to do with it. Converting to JPG makes it universally usable.
Every current browser decodes AVIF natively, so this page usually needs no extra download; older browsers get a WebAssembly decoder instead. The image is decoded in your tab and re-encoded as JPG at the quality you set. Transparent AVIF areas are filled with the background colour you choose.
Have another type of picture? Convert any image to JPG takes PNG, WebP, HEIC, GIF, BMP, AVIF and more.
How it works
- Drop your AVIF files onto the page, or tap to pick them. Batches are fine.
- Adjust the quality slider if you want a smaller file, or leave it at 90.
- Download each JPG, or all of them as one zip.
In your browser, not on a server
Stayput first reads the opening bytes of each file, where every image format writes its signature, so it knows what the file really is whatever it is called. Your browser decodes JPG, PNG, WebP, GIF, BMP, AVIF and SVG itself; TIFF goes through UTIF.js, HEIC through the libheif WebAssembly decoder, and JPEG XL (or AVIF, in a browser without native support) through the Squoosh decoders, all served from this site and cached. The browser re-encodes JPG, PNG and WebP; PDF, ICO, GIF, BMP and TIFF files are written by small encoders in the page. Nothing here needs a server.
Compared with upload-based tools: Online converters upload your image, convert it on their machine, keep it for hours and cap you at a few files a day. This does the same conversion on your device, for as many files as your device’s memory can hold, with no upload to wait for.
Verify it yourself. Give the page a short while after one visit to save itself for offline use, then turn off Wi-Fi or switch to airplane mode and run the tool again. Or open your browser's developer tools (F12, or Cmd-Option-I on a Mac), pick the Network tab, and watch it while you convert. The panel above does the same count for you.
Questions
What if my browser cannot decode AVIF?
AVIF decoding arrived in Chrome 85, Firefox 93 and Safari 16. In an older browser the page fetches a WebAssembly AVIF decoder (about 1 MB of program code, cached after the first use) and decodes the image in the tab instead. Either way the image itself is never sent anywhere.
Is quality lost?
AVIF and JPG are both lossy, so a small amount of detail is discarded in the re-encode. At quality 90 it is not visible. There is no way to convert AVIF to JPG without this step.
Is the image uploaded anywhere?
No. The conversion runs entirely inside your browser tab. After one visit and a short wait the page works with the network disconnected.
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Guides
- JPG, PNG, WebP or HEIC: which image format to useA practical rule for each job, and the conversion to get there.
- Is CloudConvert safe?For most files, yes: it is an established, certified service. The real question is whether a given file should leave your computer at all.
- Is FreeConvert safe?FreeConvert is a legitimate service with a clear deletion policy. Whether it is safe for a particular file depends on whether that file should be uploaded anywhere.
- Is Convertio safe?Convertio is a well-known converter with a published deletion policy. For private files, the safer choice is a converter that never receives them.
- Is Zamzar safe?Zamzar is one of the oldest online converters. Its storage window is longer than most, which is the detail worth knowing.