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User interface.
BSPSource icon.png
BSPSource is a VMEX-based map decompiler for the Source engine. It converts BSP format files back into VMF format maps that can be loaded into Hammer. Support has been extended to newer Source games, such as <Counter-Strike: Global Offensive> Counter-Strike: Global Offensive, <Left 4 Dead 2> Left 4 Dead 2, and [Portal 2] Portal 2. Most of the bugs found in the latest release of VMEX have been fixed, and new features have been added.

Some of its features are:

  • Extracting embedded content (protected maps may cause errors)
  • BSP analysis
  • Support for processing multiple files at once
  • Convenient BSP file Drag & Drop
  • Much more!
Note:Decompiling maps may not always result in accurate builds. Some properties, such as keyvalues and texture settings, may not match those of the original map. A common example (bug) are misplaced areaportals.


If you want decompile a map ( confirmed in Counter-Strike: Global Offensive ) and have error models. It can happen because materials and models are packed inside the BSP map. To solve this issue, go to the tab "other" and ensure "Extract embedded files" is ticked. Then, after completion you should drag the folder that appears in the same path as the new .vmf appears and drag everything to your game folder and then restart hammer.

See also

External links