Kompressor Logo
KompressorImage Converter for Mac
↓Download for Mac

How to Convert AVIF to JPG on Mac

You downloaded an image and it is an AVIF file that your app does not open. This is how to convert AVIF to JPG on a Mac with Kompressor, Preview or the Terminal.

Steps

  1. Download Kompressor for Mac or get it on the Mac App Store
  2. Open the Kompressor app
  3. Drag and drop your AVIF image(s) into Kompressor
  4. Select JPEG as your output format
  5. Adjust compression settings as needed
  6. Click on the ▷ (play) button to convert your AVIF image(s) offline

Kompressor is free to try: you get 3 conversions, and each conversion can include as many images as you want.

Why convert AVIF to JPG?

More and more websites serve images as AVIF because the files are small. When you save such an image, you get an .avif file. Browsers display it, but many apps, upload forms and older systems do not. JPG opens everywhere.

Other ways to convert AVIF to JPG on Mac

Preview

On macOS 13 or later, Preview opens AVIF files. Open the image, choose File > Export and select JPEG. For many files, open them in one window, select all thumbnails in the sidebar and choose File > Export Selected Images.

Terminal (sips)

sips is part of macOS and converts a whole folder with one command:

mkdir converted
sips -s format jpeg -s formatOptions 80 *.avif --out converted

The number after formatOptions is the quality from 0 to 100. There is no preview, so you must open the results to check them.

When Kompressor is the better tool

Kompressor converts a folder of AVIF files in one step, shows the JPG file size before you convert, and can resize the images at the same time.

Which quality setting to use

Kompressor shows quality as a bar with ten steps, from 10% to 100%. The default is 80%, and it is a good start for photos. Before you convert, open the compare view: drag the slider across the image to see the original next to the result, with the real output file size. Lower the quality until you see a difference, then go one step back.

Questions

Why is the JPG larger than the AVIF file?

AVIF compresses much better than JPEG. A JPG with the same visual quality is often about twice the size.

Does the image have transparency?

JPG does not support transparency. If the AVIF image has transparent areas, convert it to PNG.

Is JPG the same as JPEG?

Yes. JPG and JPEG are two names for the same format. Kompressor calls it JPEG.

More Guides