About PNG to AVIF Converter

PNG is lossless, so screenshots, graphics and photos saved as PNG can be very large. AVIF is a modern format that usually stores the same picture in a fraction of the space, and it keeps transparency. That makes this conversion useful for websites that want fast pages, and for anyone with a folder of heavy PNG files.

Know the trade-offs. AVIF is lossy: it discards fine detail to save space, and flat graphics with sharp text can pick up faint blur at low quality. It is also newer than JPG or WebP. Current versions of Chrome, Firefox, Safari and Edge open it, but older browsers and some desktop apps, email clients and upload forms do not. Encoding takes longer than JPG, and it runs in your browser, so large images take a few seconds each.

Choose High for a good balance, Max for the least visible loss, or Low when file size matters most. The pixel dimensions never change, each file keeps its name with only the extension swapped, and no metadata or watermark is added. Everything runs in your browser, so your images are never uploaded.

Tip: keep the original PNG as your master and use the AVIF for publishing. If a place will not accept AVIF, convert to WebP or JPG instead.

How to convert PNG to AVIF

1. Add your PNG images. You can select several at once.
2. Check that the output format is AVIF, and choose the quality.
3. Convert, then download the image, or one ZIP when you added several.

Frequently asked questions

Will converting PNG to AVIF reduce quality?

Yes, a little. AVIF is lossy, so some fine detail is discarded. At High quality the difference is hard to see in photographs and most graphics. Text and sharp line art show it more easily, so use Max for those.

How much smaller will the AVIF be?

For photographs, AVIF is often 30 to 50 percent smaller than a JPG of similar visual quality, and much smaller than the PNG. Screenshots and flat graphics already compress well as PNG, so the saving varies.

Does AVIF keep transparency?

Yes. Transparent areas of your PNG stay transparent in the AVIF.

Where can I use AVIF files?

In current versions of Chrome, Firefox, Safari and Edge. Older browsers and some apps cannot open them. For files you need to share widely, JPG or WebP is the safer choice.

Can I convert many PNG files at once?

Yes. Add them all, convert once and download a single ZIP. Only the extension changes. A file named holiday.png becomes holiday.avif.

Are my PNG files uploaded anywhere?

No. The conversion happens in your browser and the files never leave your device.