C Programming/Compilers
Free (or with a free version)
- Ch_interpreter (http://www.softintegration.com) - The software works in Windows, Linux, Mac OS X, Freebsd, Solaris, AIX and HP-UX. The Ch Standard Edition is free for noncommercial use.
- lcc-win32 (http://www.cs.virginia.edu/~lcc-win32) - Software copyrighted by Jacob Navia. It is free for non-commercial use. Windows (98/ME/XP/2000/NT).
- GNU Compiler Collection (http://gcc.gnu.org) - GNU Compiler Collection. GNU General Public License / GNU Lesser General Public License.
- MinGW (http://www.mingw.org/) provides GCC for Windows
- Open Watcom (http://www.openwatcom.org) Open Source development community to maintain and enhance the Watcom C/C++ and Fortran cross compilers and tools. Version 1.4 released in December 2005.
- Host Platforms: Win32 systems (IDE and command line), 32-bit OS/2 (IDE and command line), DOS (command line), and Windows 3.x (IDE)
- Target Platforms: DOS (16-bit), Windows 3.x (16-bit), OS/2 1.x (16-bit), Extended DOS, Win32s, Windows 95/98/Me, Windows NT/2000/XP, 32-bit OS/2, and Novell NLMs
- Experimental / Development: Linux, BSD, *nix, PowerPC, Alpha AXP, MIPS, and Sparc v8
- Tiny C Compiler
- Portable C Compiler (http://pcc.ludd.ltu.se) - Portable C Compiler. BSD Style License(s).
- Small Device C Compiler (SDCC)
- target platforms: Intel 8051-compatibles; Freescale (Motorola) HC08; Microchip PIC16 and PIC18.
- FpgaC. Target platform: FPGA hardware via XNF or VHDL files.
- Interactive C (http://www.botball.org/educational-resources/ic.php).
- target platform: Handy Board (Freescale 68HC11); Lego RCX
- C compilers for many digital signal processors (DSPs), many of them free, are listed in the comp.dsp FAQ.
Commercial
- Intel C Compiler (http://software.intel.com/en-us/intel-compilers) - Windows, Linux, Mac, QNX, and embedded C/C++ compilers. Optimized for Intel 32-bit and 64-bit CPUs.
- Microsoft Visual C++ (http://msdn.microsoft.com/visualc) - Free (partially limited) version available (Express edition)
- Impulse C - Target platform: FPGA hardware via Hardware Description Language (HDL) files.