Crowbar vs Source 2 Viewer

Crowbar is a free Windows tool for modding GoldSource and Source Engine games. It can decompile, compile, and view models, as well as unpack, inspect, and search Valve VPK, Garry's Mod GMA, Vampire: The Masquerade - Bloodlines VPK, Tactical Intervention FPX, and Fairy Tale Busters APK packages. It can also pack folders into Valve VPK and Garry's Mod GMA files. Decompilation can recreate QC, mesh, animation, and procedural-bone files, while batch workflows can process a selected folder and its subfolders. Crowbar supports downloading Workshop items and publishing them for several games. The maker says Windows XP or later and .NET Framework 4 are required. Compiling models needs the game's authoring tools or SDK and its studiomdl.exe; viewing models needs authoring tools or an SDK and hlmv.exe. The latest release shown is version 0.74, dated February 2023. Help materials include guides, tutorials, reference resources, Discord, and Steam discussions.

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.