In-browser tool

Convert GIF to AVIF

Free, private and in your browser: the classic format for simple animations and graphics in, the newest format with the smallest file sizes out. The file is never uploaded.

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

How it works

01
Choose or drop a GIF file
02
The browser converts it to AVIF locally
03
Download the result — nothing was uploaded

Frequently asked questions

Does converting GIF 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.