PNG to AVIF

PNG to AVIF Details

This page is a single-purpose converter: it rewrites PNG files as AVIF. Drop a file in, run the conversion, take the download.

PNG is a lossless raster format with a real alpha channel, so repeated saves never degrade the picture. AVIF is the still-image half of the AV1 codec and holds detail well even at low bitrates.

Step by step

The order below follows the page itself, and no step asks you to sign up or confirm anything.

1. Drop the PNG files into the upload area; clicking the area opens the usual file picker instead.
2. The queue takes up to 20 files at once, and anything added by mistake can be removed from the list.
3. The convert button rewrites the selected file as AVIF; the batch button repeats that for every PNG file in the queue.
4. Rename the output in the queue field before downloading; the extension is set to AVIF for you.
5. Save the finished AVIF file with the download link, then clear the queue and start the next batch.

Formats, limits and behaviour

The limits match what the interface shows, and the processing behaves like this:

• Accepted input: PNG (png), up to 24 MB per file.
• The result is written as AVIF and encoded at quality 60, which is why the file shrinks so much.
• The queue carries 20 files at a time, and each file travels in its own request.
• Transparent pixels survive the trip because AVIF supports an alpha channel.
• PNG is lossless while AVIF is encoded with loss, so hard lines and small text can soften slightly at the edges.
• Do not count on metadata surviving: whether EXIF and ICC data travel depends on the engine handling the file, so keep anything critical elsewhere.

Picking the right tool

This conversion earns its place when an existing PNG file has to land somewhere that asks for AVIF. Hero images, high-resolution photography and pages that pay attention to mobile data cost benefit most. It usually lands smaller than WebP at matching quality, but encoding is slower and old software support is thin. PNG is a lossless raster format with a real alpha channel, so repeated saves never degrade the picture.

AVIF gives you the smallest file when page speed is the priority. If the file has to open in older software, WebP or JPG output is the safer call.

Quick tips

• Add every PNG file from the same folder in one go; up to 20 of them finish in a single round.
• Renaming outputs in the queue keeps your downloads folder readable once several AVIF files land there.
• AVIF is encoded with loss, so converting the same file repeatedly costs quality. Keep the original.
• Open the AVIF file afterwards and check edges and colour gradients, and keep the PNG source where it is.

Data and privacy

Processing an image means uploading it, and that upload lives only as long as the request. Once the output exists, the file is not stored and never handed to a third party. Ads may appear on the page, but no ad network can reach your upload.