Convert hgr to flif Online: hgr2flif
You can use Tom's Editor to easily convert images from
High Resolution .HGR to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
High Resolution is an image format with extension HGR.
Free Lossless Image Format is an image format with extension FLIF.