If you are looking for a working way to extract files today, these are the primary reliable methods: The Official gmad.exe : This is the built-in tool located in your game's folder (usually .../steamapps/common/GarrysMod/bin ). You can simply drag and drop any .gma file onto the icon to extract it into a folder. GM Publisher
: Navigate to \Steam\steamapps\workshop\content\4000\ . gma extractor patched
That key, it appears, has just been broken. If you are looking for a working way
Are you trying to extract a ? Are you on Windows, Mac, or Linux ? gma extractor patched
: A visual interface to browse locally installed addons directly from the Steam Workshop directory (typically /steamapps/workshop/content/4000/ Drag-and-Drop Extraction