Utilities

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

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

Checks for errors in your map

A GUI for both VTEX and studiomdl.

This is a pixel shader for bloom-like effects on any Half-Life engine game.

A PoC library for working with the VConsole network protocol.

Extract content from game archive files

Great little tool for adding VMF associations to specific Hammer Versions

Just extract this somewhere and drag your demo file onto it and it'll remove all the scoreboards and command menus from demos.

Tool for porting your GoldSource maps to Source. It features many fixes that will save hours of mindless work.

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

Alternative to Resgen, Download at own risk

Adds TGA Thumbnails in windows

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

Valve Integrated Development Environment

Simple movie recording tool for Source Engine games

Large collection of all the typical tools used in Modding

Debug options for HL2 Deathmatch

Manages custom content for source engine games

WAD Compiler

Source and GoldSrc Query Tool

Workshop tools for creating Nightfire content

tool for converting closed-captions files for Source engine games

Manages custom content for steam games

TF2 demo parsing in javascript

High definition pack for Half-Life and Opposing Force

This tool was manly made to extract out the mapname of GoldSrc- and Source Engine demofiles and place it in the name of the demofile itself.

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

This is a simple interpreter library for the Source Config.

a free open source tool that can be used for tuning and cleaning up Steam and Source engine games.

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#.

RESGen. A tool to create .res files for Half-Life.

Source Sauce is a replacement out-of-game utility for the in-game options menu of Source Games.

Content installer for some source games

You scan for the maps., Then select the map. There you go. Just right there at your desktop

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

FGD highlighting for Sublime Text editor

Notepad++ syntax highlighting for Valve files

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.

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

VOGL is a debugger for the OpenGL rendering API intended to be used in the development of video games

Edit the UI colors in Worldcraft

A half life dedicated server (goldsrc) management tool written in ruby

Tool to aid in the creation of WAV files

Pak Explorer is a tool to help view and edit the contents of Qukae II PAK files

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

A collection of tools to help with modding

Spreadsheet listing HL2 models

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

A metamod plugin that allows you to write server side plugins with C# on the GoldSrc engine

Half-Life 1 Scripting and Administration

Collection of icons for valve games

selection of icons for Valve filetypes making development on windows easier

Easily recreate your gui elements in other languages

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

benchmarking tool for Linux OpenGL games

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

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

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

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

extract gcfs

Make a .res file and populate a dir with all resources

TM GCF Extractor

OpenGL wrapper for Direct3D

Render smoother Source Engine videos, faster.

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

Generate RES files for your maps