Convert apng to flif Online: apng2flif

You can use Tom's Editor to easily convert images from
Portable Network Graphics .APNG to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

APNG

Portable Network Graphics is an image format with extension APNG.

FLIF

Free Lossless Image Format is an image format with extension FLIF.