A utility that extracts all Garry"s Mod addons (.gma) in a user-specified folder

massgmad version 2.0 running on Windows 10

Go to the releases page for the current version and a nice changelog.

1. Download the latest version of massgmad, assuming Java is installed on your computer.
2. Run the .jar, either by double-clicking it, or by executing java -jar path\to\massgmad.jar in your favorite terminal.
3. Click Locate gmad and find gmad. Listed below are the default locations of gmad.
4. Windows: C:\Program Files (x86)\Steam\steamapps\common\GarrysMod\bin\gmad.exe
5. macOS: Coming soon
6. Linux: Coming soon
7. Click Locate Input Folder. The folder must contain at least 1 .gma file. Once you choose an input folder, a list of all the .gma files will appear in massgmad.
8. Click Locate Output Folder. Locate a folder where massgmad can extract the .gma files.
9. Click Extract All gma Files. massgmad will begin extracting all the .gma files found in the input folder. Here are some precautions.
10. BE PATIENT
11. DO NOT TOUCH/INTERACT WITH MASSGMAD
12. DO NOT TOUCH/KILL ANY JAVA PROCESS
13. or else massgmad will not finish extracting
14. massgmad will do its extraction. Unfortunately, it can not go any faster.

I used IntelliJ IDEA 2016.3.2 to create massgmad, so I recommend downloading (or using git) the repo and open it in IntelliJ IDEA.

If you do not have IntelliJ IDEA or too lazy to install it, you could try to grab the .java files and use them in your favorite Java IDE, then compile them.

1. written in Java
2. supports folders with spaces
3. multiplatform (untested on macOS and Linux, support coming soon)
4. more stable

massgmad is released under the MIT License.

Garry"s Mod is a registered trademark of Facepunch Studios. massgmad and its author are not affiliated with Facepunch Studios.