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

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
    Start Free
  • Simple, Secure Domain Registration Icon
    Simple, Secure Domain Registration

    Get your domain at wholesale price. Cloudflare offers simple, secure registration with no markups, plus free DNS, CDN, and SSL integration.

    Register or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.
    Sign up for free
  • 1
    Framework written in C language using OO concepts. Pretty similar to Java. This is gonna change your way of programming in C. Feel free to contact me at juanrb@hotmail.com.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    Objective-C bindings for GTK+ library
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    An web system for small university courses, typically postgrad. Simple to install/maintain, easy for "teachers" with any scripting skills to extend. Alternative to big-iron VLEs/LMSs. Forums, quizzes, timetables, cms, year and user management, etc.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    OCP - Open Controller Platform is software platform that makes it easy to build a cross-compilation toolchain with C compiler, assembler, emulator and programming tools for embedded micro corntroller systems.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Connect every part of your business to one bank account Icon
    Connect every part of your business to one bank account

    North One is a business banking app that integrates cash flow, payments, and budgeting to turn your North One Account into one Connected Bank Account

    North One is proudly built for small businesses, startups and freelancers across America. Make payments easily, keep tabs on your money and put your finances on autopilot through smart integrations with the tools you’re already using. North One was built to make managing money easy so you can focus on running your business. No more branches. No more lines. No more paperwork. Get complete access to your North One Account from your phone or computer, wherever your business takes you. Create Envelopes for taxes, payroll, rent, and anything else automatically.
    Get started for free.
  • 5
    The Open Source Health Information Platform is a Python implementation of openEHR electronic health record specifications http://www.openehr.org. Project website : http://launchpad.net/oship Analytics are at: http://www.ohloh.net/projects/oship
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    Alchemy is the much acclaimed user interface used by the Amida Simputer, optimised for mobile computing devices. This interface was recently released under the GPL as "OpenAlchemy".
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    A cross platform toolkit for building applications on Mac OS X, Windows, and Linux.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    OpenCom is an open-source component programming model designed by the School of Computing and Communications at Lancaster University, UK. This project maintains the official C language version of OpenCom.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    The project works to illustrate implementations of the portable OpenFPGA GenAPI standard for multiple language environments.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Keep company data safe with Chrome Enterprise Icon
    Keep company data safe with Chrome Enterprise

    Protect your business with AI policies and data loss prevention in the browser

    Make AI work your way with Chrome Enterprise. Block unapproved sites and set custom data controls that align with your company's policies.
    Download Chrome
  • 10
    OpenGMP is an open service platform for implementing advanced decision support solutions for the mining enterprise.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    OpenHCPP

    OpenHCPP

    A Directive-Based Heterogeneous Parallel Programming Framework

    OpenHCPP is a high-level directive-based parallel programming framework.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    Open Legacy Storage Document: Generic Document Archiving on Disk and Network(using MINA) Framework in Java for huge number of docs(up to 2^192 documents), efficient(Java NIO), crypto, net transfert, web retrieve, J2EE and eMail archiving compatible.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    OpenMECS is Open Marine Electronics Communication Standard. It aims to be an open and free replacement for the proprietary standards NMEA-0183 and NMEA-2000 in the form of protocols and a standard library.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    OpenUAT is a toolkit for authentication in ubiquitous computing systems.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    PHP Work is a rapid application-framework-level modules management framework.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    POSIX Threads emulation layer for Windows Threads
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Handling files in PalmOS is a nightmare when you want to read/write the files in both RAM and VFS. This library is a abstract layer for handling PDB files in PalmOS and other OS/platform. For more information: http://pflib.wiki.sourceforge.net/
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Paperboy WDM is a web development framework built around the concept of separating logic, content, and presentation without the complexities of SQL. It uses Paperboy RSS as a translation layer between content (in XML) and presentation.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    PerfCache

    PerfCache

    A high-performance C++ cache library implementing O(1) LRU and LFU.

    PerfCache is an API that allows for creation and management of a memory cache. It includes basic cache operations (insert and retrieve), replacement policies, and expiration. Cache entry keys are strings of bytes, and data items are arrays of bytes. Variable length keys and data are supported. The cache itself is implemented as an array. The cache infrastructure includes a directory, mapping cache entry keys to cache array indices, and a sub-system for handling cache entry replacement metadata. The LRU and LFU replacement policies are supported; the replacement metadata management overhead is O(1). PerfCache includes support for synchronization and for cache operation statistics.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Photon provides very fast access to data containers (queues, maps, etc.) in shared memory - it can retrieve millions of data records per second. It also uses some RDB concepts like transactions and crash recovery. See web site for details.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Playputer SDK is open source C/C++ framework whose purpose is to help development of virtual machine libraries for playing casual games.These libraries emulate classic home computers, video game consoles,and other hardware or software systems.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    PocketFrog is *THE* game library to rapidly write blazing fast games on the Pocket PC platform. It is implemented in C++ with an object oriented design. If your application needs to harness the raw power of your Pocket PC graphics, PocketFrog is for you.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Porcupine is an open-source Python based web application server that provides front-end and back-end revolutionary technologies for building modern data-centric Web 2.0 applications.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    Porcupine is an open-source Python based web application server that provides front-end and back-end revolutionary technologies for building modern data-centric Web 2.0 applications.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    PGF is a project that aims to define a basis for reliable, open-source and non-restrictive environment for creating games for different platforms. More than just a bunch of libraries, PGF is in fact a concept, that could be followed by anyone.
    Downloads: 0 This Week
    Last Update:
    See Project