To convert AVIF to JPG, drop your .avif files into the box above, pick a JPG quality (default 90) and a background colour for any transparent areas, then click Convert. Your browser decodes the AVIF using its built-in support and saves a JPG with the same file name. Download the files individually or as a ZIP.
How to use the AVIF to JPG tool
- 1
Add AVIF files
Drop .avif images in or click to choose them — up to 50 per run, each up to 50 MB.
- 2
Set quality and background
Choose a JPG quality from 10 to 100 (default 90). Transparent areas are filled with white unless you pick another colour.
- 3
Convert
Click Convert. Your browser decodes each AVIF and encodes it as JPG on your device.
- 4
Download
Save the JPG files one by one, or all together in a ZIP.
What is AVIF?
AVIF (AV1 Image File Format) is an image format based on the AV1 video codec, developed by the Alliance for Open Media. It supports transparency, high dynamic range and very efficient compression, and it often produces smaller files than JPG or even WebP at similar visual quality. That is why a growing number of websites and image services deliver AVIF to browsers that support it.
As with WebP a few years ago, support outside the browser is the problem. Image editors, operating system previews, office suites, printing services and upload forms may not open AVIF files, so an image saved from the web can turn out to be unusable where you actually need it.
Browser support for the conversion
Krawly relies on your browser's native AVIF decoder, which is available in Chrome 85 and later, Firefox 93 and later, and Safari 16.4 and later. In older browsers that cannot decode AVIF, the conversion will not work, and updating the browser is the fix.
Once decoded, the image is encoded as a standard JPG. AVIF can contain transparency, which JPG does not support, so transparent areas are filled with a solid colour: white by default, or one you choose. AVIF files can also hold animations; in that case only the first frame is converted.
Because AVIF is so efficient, the resulting JPG will often be larger than the original file. That is expected and is the price of compatibility. If size matters, lowering the JPG quality a little or resizing the image will help.
No server round-trip for your images
An AVIF to JPG conversion is a simple format change, and it does not need a remote server. Krawly runs the whole process in your browser tab: the file is read from your device, decoded, re-encoded and offered back as a download.
Your images are never uploaded to Krawly's servers, nothing is stored, and there is no account or watermark involved. That makes it suitable for converting screenshots, design references or personal pictures that you would not want sitting on someone else's machine.
Tips for the best results
- Update your browser if AVIF files fail to convert — decoding uses the browser's built-in AVIF support.
- Expect JPGs to be bigger than the AVIF originals; that is normal.
- Choose a background colour that matches the destination for AVIFs with transparency.
- Keep the AVIF files if you also publish them on the web, where their small size helps.
Frequently asked questions
Why can't I open AVIF files?
AVIF is a relatively new format. Modern browsers display it, but many image editors, viewers, office programs and upload forms still do not. Converting AVIF to JPEG (JPG) gives you a file that opens practically everywhere.
Which browsers can convert AVIF here?
The converter uses your browser's native AVIF decoder, available in Chrome 85+, Firefox 93+ and Safari 16.4+. If your browser is older, it cannot decode the file, so update it to a current version and try again.
Why is my JPG larger than the AVIF?
AVIF compresses images very efficiently, usually more than JPG. Converting to JPG trades some of that efficiency for compatibility, so a bigger file is normal. Lower the quality slider if you need a smaller JPG.
What happens to transparency in AVIF files?
JPG cannot store transparency, so transparent pixels are filled with a background colour — white by default, or any colour you pick with the colour picker before converting. Choose the colour of the page or slide where the image will appear.
Are my AVIF images uploaded?
No. Decoding and encoding both happen locally in your browser, which is why a reasonably current browser is needed. Your files are never uploaded to Krawly's servers and nothing is kept after you close the tab.
Can I convert several AVIF files at once?
Yes, up to 50 files per run, each up to 50 MB. They share the same quality and background settings, and you can download each JPG separately or all results together as one ZIP.
Private by design. Every Krawly converter runs inside your browser using JavaScript and WebAssembly. Your files are not uploaded, stored or seen by anyone — when you close the tab, they are gone.