Crowbar vs Source 2 Viewer

Crowbar is a free modding tool for working with GoldSource and Source models and game packages. It can decompile MDL and related files into QC, SMD, and other related files, and can compile models when the game’s authoring tools or SDK and Crowbar’s studiomdl.exe are available. Viewing models likewise requires the game tools or SDK and Crowbar’s hlmv.exe. For archives, Crowbar can unpack, view, and search Valve VPK, Garry’s Mod GMA, Bloodlines VPK, Tactical Intervention FPX, and Fairy Tale Busters APK files. It can pack folders into VPK and GMA packages and supports batch extraction. Workshop functions allow downloading and publishing items for supported games. Game setups can link a game folder to its compiler, viewer, and package tools. On Windows, file associations and drag-and-drop can open VPK, QC, MDL, and folder inputs. The requirements page lists.NET Framework 4 and Windows XP or later, or Linux or Mac OS with a way to run a.NET Framework program. Crowbar is listed at free; donations are optional.

Source 2 Viewer is a free, open-source tool for browsing VPK archives and inspecting or exporting assets from Source 2 games. It can search, extract, and create archives, including VPK versions from Source 1. Its renderer displays maps, models, physics, and particles with real-time lighting and animation playback. The tool also inspects textures, audio, shaders, and other Source 2 resources. Maps, models, physics, and animations can be exported to glTF 2.0, with material conversion and batch export; maps, models, and materials can be decompiled into editable formats for Hammer, ModelDoc, and Source 2 Workshop Tools. Texture tools cover channels, depth layers, mip levels, cubemaps, and HDR, with image export. Its audio player supports WAV, MP3, and Source 2 formats. The graphical interface is Windows-only, though the guide describes running it on Linux and macOS through Wine; the command-line utility is available for Windows, Linux, and macOS. The GUI is portable and requires no installation. Some data may be lost during export, and reverse-engineered format support is incomplete. The project is volunteer-built and says it is not affiliated with Valve.