What happens to transparent AVIF pixels?

JPEG cannot store transparency, so the selected background colour is painted behind the image before export.

Can I convert several files?

Yes. The parent converter supports batches and offers an individual download or one zip.

AVIF to JPEG

Choose AVIF files and write JPEG copies locally. JPEG has no transparency, so the background colour is explicit, and every file stays on your device.

No files yetJPEG, 100%, #FFFFFF behind clear pixels

Convert AVIF pictures here

or drop up to 20 of them on this stage

Never uploadedNo account20 files at onceUp to 30 megapixels each

decoded in this tab

Format

Quality

Scale

Background

#FFFFFF

No files open yet. Choose up to 20 AVIF pictures, or drop them on the stage, and they are decoded here in this tab.

JPEG discards detail to get smaller and has no transparency, so clear pixels are filled with the background colour you pick. Nothing is sent anywhere: the decoder, the canvas and the zip all run in this tab. The tool remembers five settings between visits, the format, the scale, the transparency choice, the background colour and the JPEG quality, and never a picture.

PNG is losslessit is usually the bigger file
every pixel kept, several times the bytes
An animated AVIFstated before you convert
first frame only
The limitsper batch and per picture
20 files, 30 megapixels each

Converting, not shrinking. Your browser's own AVIF decoder does the reading, so nothing is uploaded. PNG keeps every pixel exactly, which usually makes it several times larger than the AVIF it came from. An animated AVIF converts its first frame only, and a browser that cannot decode AVIF says so instead of returning a broken file.

Common questions

What happens to transparent AVIF pixels?: JPEG cannot store transparency, so the selected background colour is painted behind the image before export.
Can I convert several files?: Yes. The parent converter supports batches and offers an individual download or one zip.

Your browser's own AVIF decoder does the reading, so nothing is uploaded. PNG keeps every pixel exactly, which usually makes it several times larger than the AVIF it came from. An animated AVIF converts its first frame only, and a browser that cannot decode AVIF says so instead of returning a broken file.