Convert AVIF to JPG on Windows 10 and 11 — Free Methods

Windows 10 and Windows 11 don't natively support AVIF in most apps. Paint can't open it. Windows Photo Viewer fails. Even File Explorer often shows no thumbnail. If you've tried double-clicking an AVIF file on Windows and gotten an error, you're not alone.

Here are the fastest ways to convert AVIF to JPG on Windows without installing additional software.

Why Windows Can't Open AVIF Files by Default

AVIF is newer than Windows' built-in image codecs. Microsoft has added AVIF support to Windows 11 in recent updates, but it's not universal, and many Windows 10 installs still lack it entirely.

Even on updated Windows 11, apps like Paint and older versions of the Photos app may still not handle AVIF correctly. The codec update only helps certain apps.

The simplest fix is to convert to JPG, which every Windows app handles perfectly.

Method 1: Convert in Browser (No Software Needed)

The fastest method on any Windows machine:

1. Open any browser (Chrome, Edge, Firefox) — all support AVIF rendering
2. Go to the free AVIF to JPG converter tool on this page
3. Drag your .avif file into the converter or click to select it
4. Hit Convert and download the JPG

This works on Windows 7, 8, 10, and 11. No install, no admin rights required, no changes to your system.

Sell Custom Apparel — We Handle Printing & Free Shipping

Method 2: Use Paint on Updated Windows 11

On fully updated Windows 11 with the AVIF codec installed:

1. Right-click the AVIF file and choose "Open with" > "Paint"
2. If it opens, go to File > Save As
3. Choose JPEG from the Save As Type dropdown
4. Save

This won't work on all Windows 11 machines — it depends on whether the AV1 Video Extension was installed automatically via Windows Update. If Paint says "unsupported file format," use the browser method above.

Method 3: Windows Photos App (With AV1 Extension)

If Windows Photos can open your AVIF:

1. Open the file in Photos
2. Click the three-dot menu (top right)
3. Select "Save as" or copy to clipboard, then paste into Paint and save as JPG

The Photos app path is less reliable because the Save As option isn't always available depending on the version. The browser method is faster and works universally.

Converting Multiple AVIF Files on Windows

The browser converter handles batch jobs too. Select all your AVIF files at once (hold Shift or Ctrl to select multiple), drag them into the converter, and download as a ZIP. This is faster than converting one at a time using any Windows app method.

Frequently Asked Questions

Why won't AVIF open in Windows Photo Viewer?

Windows Photo Viewer is an older app that predates AVIF. It doesn't support the format. Use the browser converter or the newer Windows Photos app on updated Windows 11.

Do I need to install the AV1 Video Extension?

You don't need to if you're using the browser converter — it works without any system extensions. The AV1 extension is only needed if you want Windows apps to open AVIF natively.

Does this work on Windows 10?

Yes. The browser converter works on Windows 10, 11, and older. No version requirement.