Play classic games
You 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!
Welcome to FreeDOS
FreeDOS is an open source 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.
Run applications
You can run your favorite DOS programs with FreeDOS. Or use FreeDOS to run a legacy DOS application. Just install your DOS program under FreeDOS like you would any DOS application and you'll be good to go.
For developers
FreeDOS includes lots of programming tools so you can create your own DOS programs. You can also modify FreeDOS itself, because we include the source code under an open source license.
What’s New
Free FDISK 1.3.15
Bernd Böckmann writes: "Free FDISK 1.3.15 is released." This has several fixes and changes, including: + Fix FDISK not modifying partition type via command /MODIFY and via UI if FDISK is started in extended options mode /XO + respect selected video page instead of hardcoding it to zero when calling INT 10 routines + FDISK provided MBR bootloader should now run with as low as 64K of RAM + Work around Xi8088 and Book8088 BIOS bug + Assume BIOS drive number of 0x80 to boot from if BIOS tells us it is unit 0. You can download the latest version from Free FDISK on GitHub.
Email list servers are down?
If you've tried to email either the freedos-devel or freedos-user email lists this weekend, your message isn't being ignored. It just didn't get through. We use SourceForge for our email lists, and it looks like the email list servers have been down all weekend. We have a support ticket opened with SourceForge, so we're hoping it will get resolved soon. Updated: Thanks to SourceForge for fixing the email list servers. Things are working normally again. You might need to resend emails that you sent over the weekend; we'll leave this announcement on the website for another day or so as a reminder.
FreeDOS Edlin 2.24
Edlin is an awesome line-oriented editor. That means you edit one line at a time, not full-screen. Gregory Pietsch has released Edlin version 2.24 that moves the copyright and program info to the '?' help screen. It also changes the "Abort edit?" prompt when you exit to "Really quit?" I love these changes; I use Edlin to write quick batch files, like to capture some commands I just ran as a BAT file, and moving the copyright info to the '?' page means the commands don't scroll off the screen. Thanks Gregory! You can find the new version at FreeDOS Edlin at SF or mirrored at the FreeDOS Files Archive at Ibiblio under /files/dos/edlin. We've also mirrored an EXE you can run.
NASM 2.16.03
Netwide Assembler - abbreviated NASM - is an assembler for the x86 CPU architecture portable to nearly every modern platform, and with code generation for many platforms including DOS. NASM 2.16.03 was recently released, but is a source build machinery and documentation update only. Changes include: Fix building from git in a separate directory from the source, and remove some irrelevant files from the source. There are no functionality changes. Download the latest version at NASM 2.16.03 - including the DOS version.
GnuPG 1.4.23 for DOS
GnuPG, aka GNU Privacy Guard, is a complete and free implementation of the OpenPGP standard as defined by RFC4880. GnuPG allows you to encrypt and sign your data and communications. Ben Collver has compiled GnuPG version 1.4.23 for DOS, built with DJGPP. You can download it from GnuPG at Archive.org.
httpDOS web server for DOS
SuperIlu has created a simple TLS-capable HTTP server for DOS. As SuperIlu explains, "It is not in real working condition" but it's an interesting demonstration of what you can do with DOS in 2024. httpDOS is distributed under the BSD license, with components under other open source licenses. You can find it on the httpDOS GitHub project.