Convert atr to flif Online: atr2flif

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

Go to Tom's Editor

ATR

Attributes is an image format with extension ATR.

FLIF

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