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

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

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.

Sound editing tool, useful for looping by adding cues

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

Notepad++ syntax highlighting for Valve files

Alternative to Resgen, Download at own risk

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

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

Manages custom content for steam games

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

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

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

A collection of tools to help with modding

Launches source sdk for Portal

Work-in-progress Linux tool for manipulating .bsp files (Used by Valve's Source Engine to store map data)

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

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

Automatically makes a blank mod!

Automatically saves demos recored in source engine games

Checks for errors in your map

PiLauncher lists the mods installed on your favourite games to make them easy to launch

simple command line program that converts v13 packed addons to v12

Tool to aid in the creation of WAV 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.

Create cues in WAV sound files

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

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

tool for converting closed-captions files for Source engine games

Valve Data File Parsing library.

A PoC library for working with the VConsole network protocol.

Very useful tool when working with faceposer and creating dialog

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

Development environment for Garrys mod Lua files

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

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

Demo files to benchmark Half-Life 2

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

High definition pack for Half-Life and Opposing Force

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

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

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

This is a simple interpreter library for the Source Config.

Documentation for the goldsrc sdk entities

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

Adds TGA Thumbnails in windows

Easily recreate your gui elements in other languages

Workshop tools for creating Nightfire content

Parse Source SDK '.wc' files.

OmniToolz is a tweaker made for all games out there!

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

A collection of tools to help with modding

Miscellaneous programs which use Steam data

PakRat is a graphical replacement for the BSPZIP program

Simple movie recording tool for Source Engine games

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

Edit the UI colors in Worldcraft

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

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

AMD dropped opengl support at one stage for their drivers and this helps rectify the issue

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

Valve Source Engine game language resource file localization tool

Source and GoldSrc Query Tool

Collection of icons for valve games

Spreadsheet listing HL2 models

Manages custom content for source engine games

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

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