How to convert AVIFS to APNG
- Add your .AVIFS file - drop it in the box above or click to browse.
- Convert it to .APNG in a few seconds.
- Download your new .APNG file.
What to expect
- APNG is lossless, so the output file is usually far larger than the compressed AVIFS source.
- FFmpeg's animated-AVIF decoding is still incomplete and can drop or duplicate frames; verify the frame count and timing after conversion.
- Any alpha transparency and frame delays should survive, but very high frame counts or 10-bit color may be flattened during re-encoding.
Frequently asked questions
Will the animation and timing be kept?
Yes - both ezgif and a correct FFmpeg command preserve all frames and their delays in the APNG.
Why is the APNG so much bigger?
APNG stores frames losslessly, while AVIFS uses efficient AV1 compression, so the same clip grows significantly.
Does FFmpeg reliably read animated AVIF?
Not always; its animated-AVIF support is limited, so ezgif is the safer choice if frames come out wrong.
Is transparency preserved?
Yes, APNG supports full alpha, so a transparent AVIFS should keep its transparency.
