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Welcome to FreeDOS

FreeDOS 1.2

FreeDOS is a complete, free, DOS-compatible operating system that you can use to play classic DOS games, run legacy business software, or develop embedded systems. Any program that works on MS-DOS should also run on FreeDOS.

It doesn’t cost anything to download and use FreeDOS. You can also share FreeDOS for others to enjoy! And you can view and edit our source code, because all FreeDOS programs are distributed under the GNU General Public License or a similar open source software license.

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What’s included? »

Download FreeDOS 1.2 »

Classic games

Commander Keen 1You can play your favorite DOS games on FreeDOS. And there are a lot of great classic games to play: Wolfenstein 3D, Doom, Commander Keen, Rise of the Triad, Jill of the Jungle, Duke Nukem, and many others!

Legacy software

AsEasyAs spreadsheetNeed to recover data from an old business program? Or maybe you need to run a report from your old finance system? Just install your legacy software under FreeDOS, and you’ll be good to go!

Embedded systems

DOS point of saleMany embedded systems run on DOS, although modern systems may instead run on Linux. If you support an older embedded system, you might be running DOS. And FreeDOS can fit in very well.

What's New?

DWOL - a tiny Wake-on-LAN for DOS

Mateusz Viste writes: DWOL is a tiny tool that computes and sends "Wake-on-LAN" packets. Wake-on-LAN (WOL) is an Ethernet standard that allows a computer to be turned on by a network message. The WOL technology has been designed by AMD back in 1995, and widely implemented inside many Ethernet chips and mainboards since then. DWOL is designed with two goals: being tiny (no bigger than a single floppy disk sector, that is 512 bytes), yet still performing proper input validation and providing the user with clear, friendly messages. MIT License.

wcd 6.0.0

Wcd is a command-line program to change directory fast. It saves time typing at the keyboard. One needs to type only a part of a directory name and wcd will jump to it. Wcd has a fast selection method in case of multiple matches and allows aliasing and banning of directories. Wcd also includes a full screen interactive directory tree browser with speed search. Erwin Waterlander has released wcd 6.0.0. Changes in this version include: * New Danish and Serbian translations * New option -ls to list the aliases * Faster disk scanning for the 16 bit version * DJGPP makefile fixes for targets install and dist. For a list of all changes, see whatsnew.txt. Download at

Text User Interfaces for DOS

FDOSTUI is free source code for building text user interfaces. The language used is C++. It is inspired by the Fast Light Toolkit (FLTK). The latest version now supports using an INI file to configure your interface. The majority of the code and documentation is released into the public domain, with some modules derived from FLTK under the FLTK license. Read more at the FDOSTUI website.

EtherDFS - The Ethernet DOS File System

Mateusz Viste has created a new file sharing tool for FreeDOS and other DOS systems. EtherDFS is an 'installable filesystem' TSR for DOS that lets you share files between DOS and Linux over a network. It maps a drive from a remote computer (typically Linux-based) to a local drive letter, using raw ethernet frames to communicate. You can get EtherDFS files and documentation at the EtherDFS website.

Mateusz adds that this is still an "alpha version - it's in a very early stage, and lots is to be done yet. It does work however, and .. should work with MSDOS 5+, but I tested it only with FreeDOS so far."

FreeDOS reaches 100,000 downloads

We released FreeDOS 1.2 on December 25, and since then we have seen keen interest in the latest version of FreeDOS. As of this morning on January 26, we have had 100,000 downloads of FreeDOS 1.2. We were so close to that number yesterday, but it was early this morning that we finally reached 100,000 downloads of FreeDOS 1.2. That's a just a month and a day to reach this major milestone. We think that's pretty impressive!