Open Source C Compilers for Server Operating Systems

The mingw-w64 project is a complete runtime environment for gcc to support binaries native to Windows 64-bit and 32-bit operating systems.

JWasm is a Masm-compatible assembler. It supports 16-, 32- and 64-bit code, instructions up to AVX and various output formats. It's written in C.

PyInstaller is a program that converts (packages) Python programs into stand-alone executables, under Windows, Linux, Mac OS X, AIX and Solaris. Its main advantages over similar tools are that PyInstaller works with any version of Python since 2.3, it builds smaller executables thanks to transparent compression, it is fully multi-platform, and uses the OS support to load the dynamic libraries, thus ensuring full compatibility. The main goal of PyInstaller is to be compatible with 3rd-party packages out-of-the-box. This means that, with PyInstaller, all the required tricks to make external packages work are already integrated within PyInstaller itself so that there is no user intervention required. You'll never be required to look for tricks in wikis and apply custom modification to your files or your setup scripts. As an example, libraries like PyQt, Django or matplotlib are fully supported, without having to handle plugins or external data files manually.

"Aubit 4GL" is a project to make GPL, OpenSource, Informix-4GL compatible compiler, and continue to extend functionality needed to write most efficient and productive business related, database oriented applications. See "Home Page" link for more.

X11-Basic is a dialect of the BASIC programming language with graphics capability that integrates features like shell scripting, cgi-Programming and full graphical visualisation into the easy to learn basic language on modern computers.

The aim of this project is to develope a decompiler for java which is platform independent and has options to obfuscate the class file also. The project takes class file as input and decompiles it and provides the source file.

Development environment for OS/2 and DOS

TempleOS is a 64-bit kernel with compiler, graphics library and tools. It is not a Unix. It was made from scratch.

nwcc is a C compiler for Unix systems targeting *BSD, OSX, Linux and Solaris on x86 (nasm/gas), FreeBSD, OSX and Linux on AMD64 (yasm/gas), Solaris on SPARC, AIX and Linux on PPC/PPC64 and IRIX on MIPS64. Cross-compilation is supported.

GCC-based C cross-compiler for the Hewlett-Packard HP-48 scientific calculator (4-bit data bus, 20-bit address bus, 64-bit register architecture). Proj started 1994.. now moving here to improve user support and make it easier for others to contrib.

Harbour Minigui (MinGW Package) ----------------------------------------------------------------------- Harbour MiniGUI (Mingw Package) includes these main components: - Harbour 3.2.0dev (r1611161510) ( https://github.com/harbour/core ) - Harbour MiniGUI extended v.16.11 ( http://hmgextended.com/home.html ) - Mingw 6.2.0 (MinGW-w64 - for 32 and 64 bit Windows Compiler Suite for Windows) ( http://sourceforge.net/projects/mingw-w64/ ) For details about the above products, please visit their respective sites. This package might be a good choice for harbour & ex-clipper programmers seeking a usable way to convert / transfer their application(s) into the windows GUI world. Try it, to see if it fits with your development environment...

Vincent ES 1.x is a 3D rendering library based on the OpenGL (R) ES 1.1 API specification (Common Lite) for embedded devices. ATTENTION: A new fixed pipeline implementation is being work on here: https://sourceforge.net/projects/oglsc

DBOW is a database compiler-compiler or front-end. It takes table definitions in a relatively high-level language and prepares C, C++, PHP, Perl (etc) functions for manipulating the database. It will also produce SQL table data for MySQL.

A Cobol compiler, implemented as a new front end to the GCC compiler.

B2C is a BASIC-to-C language translator/compiler for the Cybiko Handheld Computer for Teens. It takes BASIC source code and emits C source code. The BUILD task simplifies gathering of graphics, sounds, and other resources to create a complete application.

The CYbot Control LanguagE (or Cycle for short) is a Java-like language for programming Ultimate Real Robots' Cybot and TOM robots, with an open source compiler which produces files which can be loaded into Real Robots software for testing and downloadi

# ⚠ This project has moved to GitHub **drdevtools is now maintained on GitHub:** **[github.com/developer-resources-co/drdevtools](https://github.com/developer-resources-co/drdevtools)** The complete CVS history was migrated to git on 2026-06-10. This SourceForge project is retained only as a read-only archive — all current development happens on GitHub. Please update your bookmarks and clone from the GitHub URL above.

This project originally was about a megaman clone called "Game Developer Man". Game Developer Man, the game, has long since tanked. However this project has moved on to the KRGP.

FOCA (Fudeba: Optimizer, Compiler and Assembler) is a free development system for the MSX architecture (Z80-based), aiming to provide developer support for the Uzix operating system.

A GCC front end for the BCPL programming language.

Ironseed is a crossplatform binary version-compatible programming language, an answer to Microsoft COM technology which also does not have such limitations.

Jaune is a compiler and set of libraries that can be used to write programs in the Java language for small devices. Includes a basic set of class libraries, garbage collector, and set of examples that can be run on the Nintendo GameBoy

LoseThos, a free, 64-bit, multicore, PC operating system designed from scratch -- not a Unix. No bloat. Boots in 2 seconds. Comes with games, C compiler, tools and lots of demos of the API! Test-drive or install -- it is a live CD.

MEDDAC is the seeding point for designing a new approach to Operating System design itself. It is an Open Source project with roots in mainframe design and development the author began in 1979. Monitor Editor Disassembler Decompiler Assembler Compiler