Level Creation

Create an easily readable version of an FGD (commandline)

Quake Army Knife, multi-purpose tool for games based on or similar to the Quake engine

Standalone Compiler for Source Maps

Update to ZHLT

fixes the annoying Navigation Mesh was built using a different version of this map

a 3D Shape Generator for the Quake & Half-Life Map Format

The Official Editor for Valve Games

Batch compiler for automating Map Compilation

Alternative Map Editor for GoldSrc games

It is another type of solid which is perfect for creating terrain. A plugin for Hammer

Small collection of obfuscation techniques for maps

Inserts instances into a map

A modified version of VBSP designed to greatly increase the maximum width and length of visleaves.

this will pack every custom item into your map up to and including map over views

Small utility for helping protect bsp maps

Decompile Source .bsp files into Hammer .vmf files. Successor to VMEX

This program adds custom content to a BSP. It is a GUI version of Valve's bspzip.

Simple bindings for debugging maps

Convert maps between Quake3 and Half-Life

Frontend wrapper for netvis

Aids in nthe process of converting GoldSrc maps into Source maps

The Calliper editor (formerly Crowbar) is designed to be a cross-platform, extensible level editor that accelerates the creation of computer game maps, and is targeted specifically at Source engine games.

Modify the entities of a .map file by editing its text

Edit light values inside a Maps RAD file

A collection of JavaScript functions to load Goldsource and Source map files and render them. Not an editor.

Small tool for generating Random Source Maps

Standalone Compiler for GoldSrc Maps

A slimmed down copy of the Source SDK 2013 map compile tools

Multi Game Map Editor that supports Half-life

Optimizes the entities in compiled maps, allowing you to include more entities and also reduce network traffic.

GUI Compiler for Source Maps

Analyzes and reports on errors in the map compilation process

Valve Map Extractor modified version (Successor to VMEX)

A tool for compiling maps from VMF to BSP format

Generates displacements that would usually take an extremely long time, or just be impossible to do in Hammer.

Simple tool to dump raw data from Valve's map files.

Map Resource Extractor (MRE) is a small program that reads the VMF, and only copies the content that has been used in the map.

This is a tool for showing leaks in a map made in WordCraft.

Valve Batch Compile tool (VBCT) is a source map Compile tool

This program is a little tool for those that like the Half-Life game, with
its amazing kind of enemies and weapons.

Color Correct is a 3DS Max texture plug-in which alters the colors of any texture

Lists maps for easy maplist.txt

Great little application for viewing skys used in game

This is the barebones program that GFlip uses as it's base

Adjust the light levels in a map

Edit the entities of Source and GoldSrc games

Entspy is program for viewing and editing the entities of compiled map

OGLE is a rather amazing 3d tool that can extract shapes from 3d scenes being rendered on a computer screen

Windows interface that frontends the compiling utilities

makes textfiles to go with your overview pictures from Half-Life maps.

ZHLT rebuilt and up to date with latest engine build

This is a modified VBSP that does not delete prop_static entities using models with propdata

Standalone units converter

This tool blocks Hammer from converting plane coordinates to integers when exporting .map file and thus enables Hammer to output the original floating point coordinates.

Removes entity names from your map and helps prevent people from stealing your work

DirectX based application to open and view Half Life 1 game files (Source Code)

The Original official mapping utility from Valve

Map viewer for Valve's GoldSrc engine (needs to be compiled)

RandMap is a random map generator for Half-Life

This tool can help you by grouping the map into VisGroups based on a grid.

Decompiles some BSP maps with most support for Nightfire 007

Collection of various bspconv exes i have found around the net

C# library that will parse Quake/Half-Life MAP files

A small VMF to JSON parser

Convert Worldcraft 3.3 Maps into the Radiant Format

GUI frontend for Source compiling tools

GUI Compiler for Half-Life Maps

Older program used for editing entities within bsp maps

Batch files for killing the compile processes

Tool for compiling Maps from hammer

Create a custom light style for your goldSrc maps

Small prefab to help protect your map

Modified versions of the tools used in the Map compilation process

Small application for viewing map files, Superseded by crafty

Batch compile Source and GoldSrc Maps

Alternative to Hammer

Basic Model viewer for GoldSrc

Creates .Res files for Source games running on a server

This program will create a half-life2 displacement map from a heightmap image.

automatically finds mapfiles to compile in the directory it is run