Hosting a GMod server requires raw files rather than packed GMA files to facilitate fast download times for players.

The absolute best GMA extractor tool for Garry’s Mod depends entirely on your specific modding needs, but reigns supreme as the most versatile, feature-rich graphical application. If you prefer a lightweight, native choice that requires no third-party installations, the stock gmad.exe utility included with your base game installation is the most reliable option. For power users needing multi-platform support or speed, community tools like gmad-py and fastgmad serve as optimized alternatives for handling bulk extractions. Guide :: [Mac] Extracting .gma files - Steam Community

Good for a quick extraction, but less versatile than GM Publisher. 4. gmad.exe (Official Command Line Method)

Locate your extractor executable file (e.g., gwtool.exe or gmad.exe ).

Located in your game files at steamapps/common/GarrysMod/bin/gmad.exe . You can simply drag and drop a .gma file onto the .exe to extract it.

A new folder bearing the exact name of the addon will appear in the same directory, containing all the unpacked game assets. Final Verdict: Which One Should You Choose?

Right-click the desired addon and select "Extract." Choose your destination folder. Using GW Tool (for stubborn files):

It might be missing the addon.json file or it may conflict with an existing subscription. Try putting the extracted folder into the \addons directory and unsubscribing from the Steam workshop version. Conclusion