Utilities

Resguy is similar to RESgen and FLRGen, but can find all content that Sven Co-op maps are allowed to customize and only includes what is required

Javascript parser for valve gui files -- ported from optf2's vgui.py

Tool (Utility) for generating .res files for GoldSource .bsp engine maps

Valve Integrated Development Environment

Rip DirectX content from games

A utility that automatically generates a formatted .kv file based on your selection.

Great little tool for adding VMF associations to specific Hammer Versions

Easily recreate your gui elements in other languages

Benchmark which introduced some of the new and more advanced features of the Source engine and Valve's hybrid threading technology

PakRat is a graphical replacement for the BSPZIP program

This tools manages your custom modifications for your Source based Steam games.

With Captioneer you can easily create your own Closed Captions for Source-based Games, like for Team Fortress 2.

tool for converting closed-captions files for Source engine games

Allows console commands to be sent to source-engine games (hl2.exe). Works with text-mode clients.

simple command line program that converts v13 packed addons to v12

Makes starting Source based game server as easy as possible

TF2 demo parsing in javascript

Syntax highlighting for Valve formats in Sublime Text

vdfplus is a small library that aims to help with converting Valve's KeyValue format to JSON and vice versa.

Allows users to change the settings for the compiler(s) they wish to run

A development integration and project building tool for Source Engine modders.

Source Multi-Tool is meant as a replacement to Valves Source SDK Launcher

Edit the UI colors in Worldcraft

Parse Source SDK '.wc' files.

This new render dll's support transparent models in many new MOD's.

High definition pack for Half-Life and Opposing Force

netdecode is a utility for parsing and analysing data within demo files produced by Valve's Source engine (only the Orange Box branch for now). This is primarily a tool for testing and reference. Poorly written in C#.

Windows gadget for the source sdk

Valves VR toolkit for the HTC Vive

This simple script in batch add a button in the windows context menu for create files in VPK format

TM GCF Extractor

PackBSP is a tool to help automatically manage and pack dependencies in custom maps for games

HLLib is a package library for Half-Life that abstracts several package formats

Workshop tools for creating Nightfire content

Notepad++ syntax highlighting for Valve files

Launch mods for Half-Life

Drop items (vpk you want to extract or folders you want to convert to vpk) onto the App Icon

Content installer for some source games

An NPM package for manipulating FGD (Forge Game Data) files.

Valve Source Engine game language resource file localization tool

Large collection of all the typical tools used in Modding

Documentation for the goldsrc sdk entities

This is a C# library to manage GoldSrc specific files.

Alternative to Resgen, Download at own risk

Ctx converter removes the hassle of having to type in correct cmd commands to decompile ctx files

Source Engine based Project Cleaner - Primarily for SDK 2013 to make certain files more Linux & Mac friendly.

WebGL app that renders levels from the Source Engine, created against Team Fortress 2 resources. The Source Engine and anything related to it is the property of Valve Software, who does not authorize or endorse this project in any way.

Miscellaneous programs which use Steam data

Create custom shaders for Source from a node based interface

extract gcfs

Spreadsheet listing HL2 models

Compression tool used to create small files that can be transmitted by servers to gamers

This is an all-in-one kit that comes with both Hammer 3.4 and 3.5, Auto Seamer, Batch Compiler, BSP Viewer, BSP2MAP, Crafty, GCF Scape, Leak Marker, MAP Viewer, Model Viewer, PAK Explorer, Revolver, Sprite Explorer, Sprite Fixer, Sprite Viewer, Sprite Wizard, Terrain Generator, Texture Extractor, Valve Compile Tools, Wally, WinBSPC, and ZHLT.

A PoC library for working with the VConsole network protocol.

This is a set of scripts that make VMPI workers easier, vmpi is used for network distributed map compiling

Tools which can decompress and compress Nightfire's .007 archives.

This Project aims to provide a parser which parses the log output of the goldsrc hlds engine (Counter-Strike, Half-Life, etc.). There is a parser written with ragel and one written by hand.

Here are compiled versions of some of the tools from the source sdk released on 12/1/2004.

Launches source sdk for Portal

Automatically saves demos recored in source engine games

Vice is Valve's tool for ICE encryption, a trick used mainly to protect weapon script files from modification by server admins.

An ambitious attempt at providing a WYSIWYG HUD editor for Source based games

Collection of loaders for game engine asset types. Currently supported: Half-Life BSP, MDL and SPR. (requires compilation)

Collection of simple icons for Source related content (This version is from Riintouge)

a collection of tools to enrich GoldSrc

fixes 'bad inline model number #, worldmodel not yet setup' errors

A collection of tools and libraries for the Source Engine on the Xbox 360

A collection of tools to help with modding