Convert hpm to flif Online: hpm2flif
You can use Tom's Editor to easily convert images from
Grass' Slideshow .HPM to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Grass' Slideshow is an image format with extension HPM.
Free Lossless Image Format is an image format with extension FLIF.