BSPSource
BSPSource
BSPSource is a GUI map decompiler for Source games, written in Java.
Based on VMEX, it converts BSP files into VMF ones that can be loaded in Hammer. It also includes numerous bug fixes over VMEX and new features for doing the conversion, such as extracting embedded assets, processing multiple BSPs at once, and more.
Note: Due to technical reasons, decompiling maps doesn't accurately recreate their original VMF state, often presenting issues such as invalid geometry solids or misplaced areaportal brushes in the decompiled file.
Workaround: Decompiling the file again or more times may generate better results, such as avoiding some of these issues.
Note: Depending on the decompilation protection present in some community-made maps, the conversion may be prevented.