In-browser tool

Convert PNG to AVIF

Free, private and in your browser: lossless, with full transparency support in, the newest format with the smallest file sizes out. The file is never uploaded.

Drop your PNG file here

PNG

AVIF encoding is available in Chromium-based browsers (Chrome, Edge). Other browsers will fall back to server conversion — coming soon.

How it works

Choose or drop a PNG file

The browser converts it to AVIF locally

Download the result — nothing was uploaded

Frequently asked questions

Does converting PNG to AVIF lose quality?

AVIF is a lossy format, so the encoder re-compresses the image. swapfile.io uses a high default quality; for photos the difference is not visible in normal use.

Is my file uploaded to a server?

No. This tool runs entirely in your browser. You can open your browser's network tab and verify no request carries your file.

What happens to the metadata?

Re-encoding through the browser produces a clean file: EXIF, GPS and C2PA metadata are not carried over to the output.

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