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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?

OpenGEM 7 RC3 is ready

Shane Coughlan writes: "The final(?) Release Candidate of OpenGEM 7 is ready and available for testing. To try it just download the zip file from the repository and unpack to the C: drive in your relevant machine while preserving directory structure. Type GEM to execute the GEM.BAT file. If I get no feedback in the next week then I will consider the release ready and go 'gold.'" You can get the new OpenGEM 7 RC3 at OpenGEM on Github.

Curious what's new in this release? Shane adds: "By the way, this RC saw some big changes: - Updated README.TXT and GUIDE.TXT - Updated GEM.BAT file (notices) - Updated SETUP.BAT file (notices and pause feature) - Updated CuteMouse driver from 1.9 to 2.1b4 - Changed SHUTDOWN 1.2 abandonware to SHUTDOWN 1.1 and REBOOT 1.0."

OpenGEM now on GitHub

OpenGEM is a non-multitasking 16-bit graphical user interface (GUI) for DOS. It is an extended, open source software distribution of FreeGEM that includes features of the original Digital Research GEM. Shane Coughlan has moved the source code to OpenGEM on GitHub. If you'd like to help, grab the code! OpenGEM is distributed under the GNU GPL.

FreeDOS is 23 years old

On June 29, 1994, we announced a project to create a "free DOS." And today, FreeDOS is 23 years old! All this month, we've asked people to share their FreeDOS stories about how they use FreeDOS. You can find them on our blog, including stories from Fritz, Imre, Shane, Marti, Gregory, Erwin, Rugxulo, and others. In addition, we've highlighted several interesting moments in FreeDOS history, including a history of the FreeDOS logo, a timeline of all FreeDOS distributions, an evolution of the FreeDOS website, and more. You can read everything on our celebration page at our blog: Happy 23rd birthday to FreeDOS.

Since we've received so many "FreeDOS story" contributions, I plan to collect them into a free ebook, which we'll make available via the FreeDOS website. We are still collecting FreeDOS stories for the ebook! If you would like to add your story to the ebook, send us an essay by Tuesday, July 18.

Unix-like utilities for FreeDOS: UPTIME

Developers have been updating and adding Unix-like utilities for FreeDOS. Javier GutiƩrrez Chamorro has updated his UPTIME utility for FreeDOS. The latest version (2.40) includes separate 8086, 186 and 386 optimized versions. Previous versions added dash (-) and slash (/) switches separator, and uppercase switches. You can download it from the UPTIME website. Find all of the Unix-like utilities at the Unix directory at ibiblio.

DOS Coreutils 0.4

Ercan is working on a DOS Coreutils project, to recreate several Linux commands in DOS. So far, DOS Coreutils includes commands like beep, cat, clear, cp, date, ls, mkdir/rmdir, pwd, time, and other commands. Source code is in C and compiles using OpenWatcom. Version 0.4 has minor fixes. Download from Ercan's DOS Coreutils Github.