Files with vmf extension can be often found as map sources for maps made using the Valve Hammer Editor (also known as WorldCraft).

There are 4 other file types using
the VMF file extension!

empty icon.vmf - VocalTec Internet wave audio

empty icon.vmf - Corel Ventura Publisher font characteristics

empty icon.vmf - Covox Speech Thing sample

empty icon.vmf - Vensim VMF model file

VMF file extension - Valve Map Format

What is vmf file? How to open vmf files?

File type specification:

Various data file type icon Various data file type

File extension vmf is associated with the Valve Hammer Editor (WorldCraft) that saves a level file in the .vmf format by default. Before this, it saved a level file in the binary, proprietary .rmf or text-based, human-readable .map format.

VMF format (Valve Map Format) is a simple file that contains all the information about a level in a format vaguely similar to an XML file. It originated because of Half-Life's reliance on the Quake engine, and has remained as a result. Valve includes compiling tools with the Source SDK - vbsp, vvis, and vrad.

Updated: January 17, 2024

The default software associated to open vmf file:

Valve Hammer Editor icon

Valve Corporation logoValve Hammer Editor  Microsoft Windows software

Company or developer:
Valve Corporation

Valve Hammer Editor is Valve Software's map creation program for their game engine - Source engine.

The current version supports both Source and GoldSrc, and can only be accessed via a free download of the Source engine SDK.

WorldCraft picture or screenshot

Valve Corporation logoWorldCraft  Microsoft Windows software

Company or developer:
Valve Corporation

Worldcraft is a graphical level editor you can use to make your own maps for Valve Software's Half-Life. It is now known as Valve Hammer Editor.

Help how to open:

Use Valve Hammer Editor to open .vmf map source files.

How to convert:

Probably cannot be converted to other formats.

List of software applications associated to the .vmf file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open vmf file, edit vmf file, convert vmf file, view vmf file, play vmf file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting vmf files.

Software that open vmf file - Valve Map Format

Programs supporting the exension vmf on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open vmf file action.

Microsoft Windows:

Main software associated with vmf file by default:
Valve Hammer Editor small icon Valve Hammer Editor
Other suggested software:

Previous file extension
VMENU file extension > Various data file types

Next file extension
file extension VMF


Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

RSS feed