Quick steps
- 01Add AVIF photosChoose files or drop them on the page.
- 02Converted on your deviceNothing is uploaded. Adjust settings if you like.
- 03DownloadSave each file, or all of them as one ZIP.

What’s AVIF?
A modern image format with very small files. Older apps and editors can’t open it yet.
Convert AVIF images to JPG so they open in any photo viewer, editor or upload form. Your browser decodes the AVIF and writes the JPG on your device, so nothing is uploaded, and the tool is free.
How to convert AVIF to JPG
- Click Choose photos or drop .avif files onto the page.
- Each image converts as soon as it’s added, at 90% quality and original size.
- Change Quality, Size or Transparent areas in the settings panel on the right, then click Apply to all files.
- Click Save, or Download all (.zip) for the whole batch.
What AVIF is and why you have one
AVIF (AV1 Image File Format) stores pictures compressed with AV1, a royalty-free codec from the Alliance for Open Media. The files are very small for their quality, so many websites now serve AVIF images to browsers that support them.
That’s usually how people end up with one: you save an image from a web page and get a .avif file. Current versions of Chrome, Edge, Firefox and Safari display AVIF, but many desktop photo apps, older editors, office software and upload forms still can’t open it.
What the settings do
- Quality. 40 to 100%, default 90%. Higher keeps more detail and makes bigger files.
- Size. Original size, or a maximum of 4096, 2048 or 1080 px on the longest side. Images are scaled down proportionally and never enlarged.
- Transparent areas. JPG can’t store transparency, so see-through parts of the AVIF are filled with white (the default) or black. Pick the one that matches the background the image will sit on.
AVIF vs JPG
AVIF produces much smaller files at the same visual quality and supports transparency and HDR. JPG is far older and less efficient, but nearly every program ever written can open it. Use AVIF on your own website if your audience’s browsers support it; use JPG when the image has to work everywhere.
Expect the JPG to be larger than the AVIF. That’s normal and doesn’t mean quality was added. If size matters, lower the Quality or pick a smaller Size.
JPG suits photos. For logos, screenshots, illustrations with flat colors, or anything that needs a transparent background, AVIF to PNG is usually the better choice: PNG is lossless and keeps transparency, at the cost of larger files.
Common problems and fixes
- Transparent edges turned white or black. That’s the fill from the Transparent areas setting. If you need to keep transparency, use AVIF to PNG instead.
- An animated AVIF came out still. JPG holds a single image, so you get one frame.
- A file won’t convert. It may be damaged, or not an AVIF despite the name. If your browser can’t decode AVIF itself, the tool loads a WebAssembly build of libavif to do it, which takes a moment the first time.
- Colors look slightly different. Very bright HDR or wide-gamut AVIF images are converted to an ordinary JPG, which can’t hold the same range of color and brightness.
Privacy
Decoding and encoding both happen in your browser tab. The images aren’t sent anywhere, and you can convert a whole folder without creating an account.
At a glance
- Price
- Free. No sign-up, no watermark.
- Privacy
- Files are processed in your browser and never uploaded.
- Accepts
- AVIF
- You get
- JPG
- Batch
- Convert many files at once and download them as a ZIP
- Works in
- Chrome, Edge, Firefox and Safari, on phones and computers
- Offline
- Keeps working without internet once the page has loaded
Questions
Are my files uploaded?
Never. AVIF to JPG conversion runs in your browser, so your files stay on your device.
Can I convert many at once?
Yes. Add as many as you like and download them all as one ZIP.
Is there a size limit?
Only your device’s memory. Large photos convert in a second or two.
Why did an image I saved from a website turn out to be AVIF?
Many sites send AVIF to browsers that support it because the files are smaller. Saving the image keeps that format.
Does converting AVIF to JPG lose quality?
The picture is compressed again as JPEG, so a little detail can be lost. At 90% or higher it’s rarely visible.
Can I keep the transparent background?
Not in a JPG, because the format has no transparency. Use AVIF to PNG if you need it.
Will an animated AVIF stay animated?
No. A JPG is a single still image, so only one frame is saved.
Will it work in an older browser?
Yes in most cases. If the browser can’t decode AVIF itself, a built-in WebAssembly decoder handles it.