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

  • Earn up to 16% annual interest with Nexo. Icon
    Earn up to 16% annual interest with Nexo.

    Let your crypto work for you

    Put idle assets to work with competitive interest rates, borrow without selling, and trade with precision. All in one platform. Geographic restrictions, eligibility, and terms apply.
    Get started with Nexo.
  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
    Try Retool free
  • 1
    sleef

    sleef

    Vectorized libm

    SLEEF stands for SIMD Library for Evaluating Elementary Functions. SLEEF implements vectorized versions of all C99 math functions, that utilize SIMD instructions of modern processors to make computation more efficient. The library also includes vectorized DFT subroutines.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 2
    WGCC has been superseded by parity (http://www.sf.net/projects/parity). Please use parity for new projects!
    Downloads: 3 This Week
    Last Update:
    See Project
  • 3
    Flora-2
    Flora-2 is a powerful knowledge representation and reasoning system designed for building knowledge-intensive applications. It is based on F-logic, HiLog, Transaction Logic, and also supports defeasible reasoning. Applications include intelligent agents, Semantic Web, ontology management, and more. If you use Flora-2 and like it, please acknowledge it in your project!
    Downloads: 1 This Week
    Last Update:
    See Project
  • 4
    fast single-privilege single-address-space preemptive-multithreading persistent data-centric secure multiuser operating system with safe-language and reconfigurable graphical interface
    Downloads: 2 This Week
    Last Update:
    See Project
  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

    Build generative AI apps with Vertex AI. Switch between models without switching platforms.
    Start Free
  • 5
    A Cobol compiler, implemented as a new front end to the GCC compiler.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 6
    Software Development Kit for the Nintendo(tm) Gameboy Advance(tm) based on GCC.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 7

    ECMA-55 Minimal BASIC compiler

    BASIC Compiler and Interpreter

    John's Mutant contains several projects. The current project is an ECMA-55 Minimal BASIC compiler for Linux systems using AMD64 compatible CPUs. You can download the MinimalBASIC compiler source in the Files section.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 8
    IDE for PIC18F
    Integrated Development Enviroment for series of Microchip PIC18F microcontrollers
    Downloads: 2 This Week
    Last Update:
    See Project
  • 9
    IMA2 Simple command-line editor of binary files (images, object filers, byte code, etc). More sofisticated that F4 option in FAR. More simple that GUI hex editors. Can be useed as command-line utility in scripts.
    Downloads: 2 This Week
    Last Update:
    See Project
  • Try Google Cloud Risk-Free With $300 in Credit Icon
    Try Google Cloud Risk-Free With $300 in Credit

    No hidden charges. No surprise bills. Cancel anytime.

    Use your credit across every product. Compute, storage, AI, analytics. When it runs out, 20+ products stay free. You only pay when you choose to.
    Start Free
  • 10
    "Motorola DSP56800 Tool Chain" is intended to create a complete development environment for the embedded digital signal processor family. Including assembler/disassembler, linker, archiver and light C compiler based on GNU binutils and gcc.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    The Introspector enables the programming tools that deal with source code such as the compiler to communicate in a standard and neutral manner reducing the accidental cost of programming. http://github.com/h4ck3rm1k3/
    Downloads: 2 This Week
    Last Update:
    See Project
  • 12
    The 'TIGCC for Linux' project aims to develop a C compiler for TI Graphing Calculators based on a M68000 processor. The target can be a TI89/89Ti/TI92+/V200 calculator. A such compiler already exists under Windows but this one is for Linux users.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 13

    The ATS PL System

    Unleashing the potentials of types and templates

    The programming language ATS unifies implementation with formal specification by accommodating a programmer-centric approach to program verification: How do we know a program being implemented correctly? We ask the programmer to demonstrate it with a proof.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    A C++ Development Tool for Linux
    Downloads: 2 This Week
    Last Update:
    See Project
  • 15
    Very high level modular programming language with multiple dispatch, object-oriented programming, functional closures and goal-directed programming.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 16
    XPL compiler

    XPL compiler

    XPL to C translator

    XPL compiler as described in the book "A Compiler Generator" by McKeeman, Horning and Wortman. This compiler translates the XPL language to C source code allowing anyone with a working C compiler to run an XPL compiler.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17
    Developers experimental playground for radical modification of tcl's engine.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 18
    ferite is a modern, lighweight, portable, threadsafe scripting engine with a language that is very easy to pick up and leverage for any task. It\'s been designed for rapid deployment in other programs as well as stand alone use.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 19
    an IDE for creating, compiling, linking and downloading programs for 68HC11 platforms including the handyboard and MIT 6.270 board
    Downloads: 2 This Week
    Last Update:
    See Project
  • 20
    libFirm
    The Firm library implements the Firm intermediate representation (ir), a graph based SSA intermediate represenation for compilers.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 21

    pltc

    Prolog to C compiler with runtime for DOS, Windows and Raspbian

    Prolog to C compiler with runtime for DOS (with Turbo C), Windows 10 64 bits and Raspbian (Raspberry Pi)
    Downloads: 2 This Week
    Last Update:
    See Project
  • 22
    ZASM is a 2 pass assembler for Zilog's 8-bit CPU Z80. Supported platforms: Unix-style OS, e.g. MacOS X, Linux, BSD. Special support for ZX Spectrum emulator file formats. Binary or intel hex file output.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 23
    Eli is a programming environment that supports all phases of translator construction with extensive libraries implementing common tasks, yet handling arbitrary special cases. Output is the C subset of C++. Please use eli-project-users list for suppor
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    Python XML Serialization
    pyxser stands for python xml serialization and is a python object to XML serializer that validates every XML deserialization against the pyxser 1.0 XML Schema. pyxser is written entirely in C as a python extension.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    Sisal is a unique parallel language that supports a clean, fully implicit parallelization model. The optimizing sisal compiler (sisalc) works on top of pthreads to give high performance on commodity SMP architectures.
    Downloads: 1 This Week
    Last Update:
    See Project
MongoDB Logo MongoDB