Convert esm to flif Online: esm2flif

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

Go to Tom's Editor

ESM

Enhanced Simplex is an image format with extension ESM.

FLIF

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