Utilities

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

Source and GoldSrc Query Tool

Adds TGA Thumbnails in windows

selection of icons for Valve filetypes making development on windows easier

Extract the contents of VPK files

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

Checks for errors in your map

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

TM GCF Extractor

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

Makes starting Source based game server as easy as possible

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

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

Windows gadget for the source sdk

Launch mods for Half-Life

Defacto tool for extracting content from steam archives

Very useful tool when working with faceposer and creating dialog

Alternative to Resgen, Download at own risk

Spreadsheet listing HL2 models

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

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

HLViewer is a simple to use javascript library for viewing maps and playing replays of GoldSrc engine based games entirely in browser

Sublime Text filter system that searches the Valve wiki for the input text

Tool to aid in the creation of WAV files

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

An assortment of java classes for working with the source engine

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.

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

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

Great little tool for adding VMF associations to specific Hammer Versions

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

Automatically saves demos recored in source engine games

OpenGL wrapper for Direct3D

extract gcfs

Notepad++ syntax highlighting for Valve files

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

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

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

Manages custom content for source engine games

Silence unwanted and annoying game sounds. (Half-life goldscr engine)

Simple movie recording tool for Source Engine games

hlds (goldsrc) logs parser written in C#

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

PakRat is a graphical replacement for the BSPZIP program

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

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

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.

Debug options for HL2 Deathmatch

Miscellaneous programs which use Steam data

tool for converting closed-captions files for Source engine games

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

Edit the UI colors in Worldcraft

A PoC library for working with the VConsole network protocol.

Half-Life 1 Scripting and Administration

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.

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

Manages custom content for steam games

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

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

PakScape is a PAK and PK3 explorer/creator

Syntax highlighting for Valve formats in Sublime Text

High definition pack for Half-Life and Opposing Force

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

Content installer for some source games

Free and open source SDK launcher for Counter-Strike: Global Offensive and other source engine games

Generate RES files for your maps

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

Launches source sdk for Portal