Browse free open source C Compilers for Windows and projects below. Use the toggles on the left to filter open source C Compilers for Windows by OS, license, language, programming language, and project status.

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  • 1

    MinGW - Minimalist GNU for Windows

    A native Windows port of the GNU Compiler Collection (GCC)

    MinGW: A native Windows port of the GNU Compiler Collection (GCC), with freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All of MinGW's software will execute on the 64bit Windows platforms.
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    Downloads: 2,417,219 This Week
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  • 2
    Code::Blocks

    Code::Blocks

    A free C, C++ and Fortran IDE

    Code::Blocks is a free, open-source, cross-platform C, C++ and Fortran IDE built to meet the most demanding needs of its users. It is designed to be very extensible and fully configurable. Finally, an IDE with all the features you need, having a consistent look, feel and operation across platforms. Built around a plugin framework, Code::Blocks can be extended with plugins. Any kind of functionality can be added by installing/coding a plugin. For instance, compiling and debugging functionality is already provided by plugins! We hope you enjoy using Code::Blocks! The Code::Blocks Team
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    Downloads: 60,327 This Week
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  • 3
    SWIG

    SWIG

    A code generator for connecting C/C++ with other programming languages

    SWIG is a software development tool that connects programs written in C and C++ with a variety of high-level programming languages. SWIG is used with different types of target languages including common scripting languages such as Javascript, Perl, PHP, Python, Tcl and Ruby. The list of supported languages also includes non-scripting languages such as C#, D, Go language, Java, Lua, OCaml, Octave, R and Scilab as well as the Guile implementation of the Scheme language. SWIG is most commonly used to create high-level interpreted or compiled programming environments, user interfaces, and as a tool for testing and prototyping C/C++ software. SWIG is typically used to parse C/C++ interfaces and generate the 'glue code' required for the above target languages to call into the C/C++ code. SWIG can also export its parse tree in the form of XML.
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    Downloads: 41,783 This Week
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  • 4
    Dev-C++ for Windows 10/8/7

    Dev-C++ for Windows 10/8/7

    A fast, portable, simple, and free C/C++ IDE

    Coding Boot Camp Learning to program? Check out the free boot camp from Embarcadero which runs from Monday, August 22nd to Friday, August 26th. https://learndelphi.org/boot-camp-2022/ Embarcadero Dev-C++ is a new and improved fork (sponsored by Embarcadero) of Bloodshed Dev-C++ and Orwell Dev-C++. It is a full-featured Integrated Development Environment (IDE) and code editor for the C/C++ programming language. It uses Mingw port of GCC (GNU Compiler Collection) as its compiler. Embarcadero Dev-C++ can also be used in combination with Cygwin or any other GCC based compiler. Embarcadero Dev-C++ is built using the latest version of Embarcadero Delphi. Embarcadero Dev-C++ has a low memory footprint because it is a native Windows application and does not use Electron. Optimized for parallel compilation on modern multi-core machines. GitHub Project: https://github.com/Embarcadero/Dev-Cpp/ Sponsored by Embarcadero: https://www.embarcadero.com/free-tools/dev-cpp
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    Downloads: 3,361 This Week
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  • 5
    Small Device C Compiler (SDCC)

    Small Device C Compiler (SDCC)

    The Small Device C Compiler (SDCC), targeting 8-bit architectures

    SDCC is a retargettable, optimizing standard C (ANSI C89 / ISO C90, ISO C99, ISO C11 / C17, ISO C23, ISO C2y) compiler that targets a growing list of architectures: STM8, MCS-51, DS390, HC08, S08, 6502, 65C02, Z80, Z80N, Z180, Rabbit, SM83, TLCS-90, eZ80, R800, Padauk PDK14 and PDK15 microprocessors. There also is incomplete support for the Microchip PIC16 and PIC18 and the Padauk PDK13.
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    Downloads: 1,599 This Week
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  • 6
    TDM-GCC Compiler

    TDM-GCC Compiler

    GCC for 32-bit and 64-bit Windows with a real installer & updater

    TDM-GCC is now hosted on Github at https://jmeubank.github.io/tdm-gcc/. The most recent stable releases from the GCC compiler project, for 32-bit and 64-bit Windows, cleverly disguised with a real installer & updater.
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    Downloads: 971 This Week
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  • 7

    gcc-win64

    x64 build of GCC for Windows

    x64 C/C++ compiler for Windows using (unofficial build): - gmp - mpfr - mpc - isl - cloog - mingw-w64 - gcc - seh You need at least core2 command set support to run this application. Note that every version with bundled gdb needs at least Windows 7.
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    Downloads: 2,554 This Week
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  • 8
    GnuCOBOL

    GnuCOBOL

    A free COBOL compiler

    GnuCOBOL (formerly OpenCOBOL) is a free, modern COBOL compiler. GnuCOBOL implements a substantial part of the COBOL 85, X/Open COBOL and newer ISO COBOL standards (2002, 2014, 2023), as well as many extensions included in other COBOL compilers (IBM COBOL, MicroFocus COBOL, ACUCOBOL-GT and others). GnuCOBOL translates COBOL into C and internally compiles the translated code using a native C compiler. Build COBOL programs on various platforms, including GNU/Linux, Unix, Mac OS X, and Microsoft Windows. GnuCOBOL has also been built on HP/UX, z/OS, SPARC, RS6000, AS/400, along with other combinations of machines and operating systems. Copyright 2001-2024 Free Software Foundation, Inc. The cobc compiler is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the FSF; either version 3, or (at your option) any later version. The libcob run time support source tree is licensed under the GNU LGPL.
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    Downloads: 963 This Week
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  • 9
    FreeBASIC Compiler
    Open-source, free, multi-platform BASIC compiler, with syntax similar MS-QuickBASIC (including the GFX statements), that adds new features such as pointers, unsigned data types, inline assembly, a pre-processor and many others.
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    Downloads: 999 This Week
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  • 10
    WinAVR
    WinAVR (tm) is a suite of executable, open source software development tools for the Atmel AVR series of RISC microprocessors hosted on the Windows platform. Includes the GNU GCC compiler for C and C++.
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    Downloads: 722 This Week
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  • 11
    tmux

    tmux

    tmux is a terminal multiplexer

    tmux is a terminal multiplexer: it enables a number of terminals to be created, accessed, and controlled from a single screen. tmux may be detached from a screen and continue running in the background, then later reattached. This release runs on OpenBSD, FreeBSD, NetBSD, Linux, OS X and Solaris. tmux depends on libevent 2.x, and on ncurses. To build tmux, a C compiler (for example gcc or clang), make, pkg-config and a suitable yacc (yacc or bison) are needed. Some platforms provide binary packages for tmux.
    Downloads: 89 This Week
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  • 12
    CLISP - an ANSI Common Lisp
    CLISP is a portable ANSI Common Lisp implementation and development environment by Bruno Haible. Interpreter, compiler, debugger, CLOS, MOP, FFI, Unicode, sockets, CLX. UI in English, German, French, Spanish, Dutch, Russian, and Danish.
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    Downloads: 288 This Week
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  • 13
    This is NASM - the famous Netwide Assembler. THIS PAGE IS OUT OF DATE; we no longer use any Sourceforge services other than mailing lists. Get the current versions from http://www.nasm.us/.
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    Downloads: 169 This Week
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  • 14

    MinGW-builds

    Dual-target (32 & 64-bit) MinGW-W64 compilers for 32 & 64-bit Windows

    Projects joined MinGW-W64, and the new builds will be available on the MinGW-W64 site: https://sourceforge.net/projects/mingw-w64
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    Downloads: 152 This Week
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  • 15
    gputils is a collection of tools for Microchip PIC microcontrollers. Its goal is to be fully compatible with Microchip's tools, MPASM, MPLINK, and MPLIB.
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    Downloads: 150 This Week
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  • 16
    PyInstaller

    PyInstaller

    Converts (packages) Python programs into stand-alone executables

    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.
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    Downloads: 121 This Week
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  • 17

    open-watcom

    Open Watcom C/C++ compilers and tools Fork

    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 is now completely moved to GitHub Open Watcom 2.0 https://github.com/open-watcom/open-watcom-v2#open-watcom-v2-fork Open Watcom 1.9 https://github.com/open-watcom/open-watcom-1.9
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    Downloads: 71 This Week
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  • 18
    WinXP, Vista, Win7, linux, OpenSolaris native port of the BSD PSPSDK (ps2dev.org), with freely distributable import libraries and header files (DevPaks) for building cross compiled homebrew Sony PSP (PlayStation Portable) applications.
    Downloads: 64 This Week
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  • 19
    GNU Prolog

    GNU Prolog

    The GNU Prolog native compiler

    GNU Prolog is a free implementation (under GPL) of the logic programming language PROLOG. It can compile to native machine code which is extremely fast in execution. Another feature is the included constraint solver.
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    Downloads: 247 This Week
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  • 20

    GCC toolchain for MSP430

    Superseded by http://www.ti.com/tool/msp430-gcc-opensource

    This is a port of the GNU C Compiler (GCC) and GNU Binutils (as, ld) for the embedded processor MSP430. Tools for debugging and download are provided (GDB, JTAG and BSL) Obsolete. See http://www.ti.com/tool/msp430-gcc-opensource or upstream GNU tools.
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    Downloads: 64 This Week
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  • 21
    The freeWrap program turns TCL/TK scripts into single-file binary executable programs. freeWrap can wrap TCL/TK applications that consist of multiple script and binary files. freeWrap combines all the files together into a single executable file.
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    Downloads: 53 This Week
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  • 22
    MiniLisp

    MiniLisp

    A readable lisp in less than 1k lines of C

    MiniLisp is a compact Lisp interpreter implemented in fewer than one thousand lines of C, designed to demonstrate the core principles of Lisp and interpreter design in a highly readable format. The interpreter evaluates expressions in a traditional read-eval-print loop, allowing users to input Lisp code and immediately see the results. Despite its small size, it supports a wide range of language features, including integers, symbols, lists, closures, macros, and garbage collection. The project emphasizes clarity and educational value, with well-commented code that explains how each feature is implemented. It includes support for lexical scoping, user-defined functions, and a macro system, enabling users to explore advanced Lisp concepts. The interpreter also implements a copying garbage collector, demonstrating memory management techniques in a simple context. It is designed to run on Unix-like systems and includes a test suite for validation.
    Downloads: 7 This Week
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  • 23
    Tiny C compiler, programmed in C with compiler/linker/assembler included. VERY fast and mainly usable as a library. WIN32 port of the http://tinycc.org version. Compiles code to memory currently, perhaps disk soon. Go to the homepage for more info.
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    Downloads: 42 This Week
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  • 24
    Shell Script Compiler

    Shell Script Compiler

    Shell script compiler

    shc is a shell script compiler that converts shell scripts into executable binaries. It enhances script security by obfuscating the source code, making it useful for distributing proprietary scripts.​
    Downloads: 5 This Week
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  • 25
    X11-Basic

    X11-Basic

    A BASIC interpreter and compiler with graphics.

    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.
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    Downloads: 32 This Week
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