gms-assets is GameMaker Studio PNG asset extractor/decompiler/dumper.

gms_assets [-z zip name*] [-f filename*] [-t trim image]

• zip name can be gamename.zip or "my game.zip"
• file name data.win or "my data.win"
• zip usage tested, but file usage not tested yet.
• trim image will remove edge transparent, but in some cases there is image in erased part.
• if you use trim image, original image still saved.

Download binary executable