open-watcom Icon



Open Watcom C/C++ compilers and tools Fork

4.8 Stars (4)
183 Downloads (This Week)
Last Update:
Download ow-snapshot.7z
Browse All Files


C/C++ compilers and tools to compile and build for targets
DOS 16/32-bit, RDOS, Windows 16/32-bit, OS/2 16/32 bit, Linux 32-bit (x86), Netware

running on host OS
DOS, Windows 16/32/64-bit, OS/2, Linux 32/64-bit (x86/x64)

open-watcom Web Site


Other Useful Business Software

The Leading Provider of Business VoIP Phone Systems Icon

Award-Winning Business VoIP Phone System

The Leading Provider of Business VoIP Phone Systems Icon
1 of 5 2 of 5 3 of 5 4 of 5 5 of 5
62 Reviews
  • Unlimited Calling, Faxing, Video Conferencing
  • 24/7 U.S Based Customer Support
  • Super Reliable, Simple to Use

User Ratings

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
Write a Review

User Reviews

  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    It works as well on Windows 10 as my old version of Watcom C did in the late '90s. I find it much more appealing for console programming than the bloated Visual Studio. The massive documentation and tools collection is a great resource. I recommend this compiler to beginners starting with classic texts like K&R *The C Programming Language*. It's far easier to get working than either Visual Studio or Cygwin/GCC, and includes a great full-screen debugger and numerous other tools. Best of all, it has thousands of pages of very detailed and *professional* documentation that explain every detail of the compiler and tools as well as the languages and libraries. Even non-Watcom users should consider downloading the complete documentation of the standard C/C++ libraries and classes. I'm not aware of any free resource that is comparable. The FORTRAN 77 compiler will be attractive both for legacy coding and to anyone wishing to learn the language in its "classic" form.

    Posted 10/03/2015
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I've been using Watcom C/C++ since the mid 1990's. Thank God this masterpiece wasn't lost in the industry chaos and "designed by committee" insanity and Micro$oft's "let's lock 'em in" predation. I "bet the farm" on OS/2, on Watcom, and on the C++ language, and two of those three bets came through for me. As open source, the debugger became unstable. That appears to be fixed in this fork. What I like: (1) multiplatform. (2) open source. (3) simple, no-agenda copyleft license. (4) Tight, compact, efficient binaries. (5) Generated code that functions correctly. That is why IPDOS (tm) IdeaFarm (tm) Piggyback Distributed Operating System is strategically committed to Open Watcom.

    Posted 01/11/2014
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Probably the nicest and most complete OpenSource toolset for the Win32API. Provides GUI editors for dialogs, strings, menus, accelerators, bitmaps, cursors, and icons. Provides a VI interface for the editor or allows the user to insert his own editor. Unlike other open source tool kits, this one just works.

    Posted 07/27/2013
  • 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Pretty nice improvements in v2.

    Posted 07/14/2013
Read more reviews

Additional Project Details



Intended Audience


User Interface


Programming Language

Perl, C++, Assembly, C, AWK



Thanks for helping keep SourceForge clean.

Screenshot instructions:
Red Hat Linux   Ubuntu

Click URL instructions:
Right-click on ad, choose "Copy Link", then paste here →
(This may not be possible with some types of ads)

More information about our ad policies

Briefly describe the problem (required):

Upload screenshot of ad (required):
Select a file, or drag & drop file here.

Please provide the ad click URL, if possible:

Get latest updates about Open Source Projects, Conferences and News.

No, thanks