Open Source C Software

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

  • 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
  • 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
  • 1
    gSOAP Toolkit

    gSOAP Toolkit

    Development toolkit for Web Services and XML data bindings for C & C++

    The gSOAP toolkit is an extensive suite of portable C and C++ software to develop XML Web services with powerful type-safe XML data bindings. Easy-to-use code-generator tools allow you to directly integrate XML data in C and C++. Serializes native application data in XML. Includes WSDL/XSD schema binding and auto-coding tools, stub/skeleton compiler, Web server integration with Apache module and IIS extension, high-performance XML processing with schema validation, fast MIME/MTOM streaming, SOAP and REST Web API development, WS-* protocols (WS-Security, WS-Policy, WS-ReliableMessaging, etc), XML-RPC and JSON. Licensed under GPLv2. Visit the developer center with guides, tutorials, and examples at www.genivia.com/dev.html The documentation of the toolkit, libraries, plugins and more is available at www.genivia.com/docs.html Commercial-use licenses and expert technical support services are available at competitive pricing levels, please visit www.genivia.com/products.html
    Leader badge
    Downloads: 405 This Week
    Last Update:
    See Project
  • 2
    Matroska is an open standard audio/video container format. Visit our homepage at http://www.matroska.org
    Leader badge
    Downloads: 348 This Week
    Last Update:
    See Project
  • 3
    CuTest lets you write unit tests for your C code. You should use it because: (1) It has the cutest name, (2) It looks and feels like JUnit, (3) It is cross-platform, (4) It ships in a single .c and .h file for ease of deployment.
    Leader badge
    Downloads: 71 This Week
    Last Update:
    See Project
  • 4
    SmallBASIC
    SmallBASIC is a fast and easy to learn BASIC language interpreter ideal for everyday calculations, scripts and prototypes.
    Downloads: 22 This Week
    Last Update:
    See Project
  • Level Up Your Cyber Defense with External Threat Management Icon
    Level Up Your Cyber Defense with External Threat Management

    See every risk before it hits. From exposed data to dark web chatter. All in one unified view.

    Move beyond alerts. Gain full visibility, context, and control over your external attack surface to stay ahead of every threat.
    Try for Free
  • 5
    Implements the rules of Scrabble(tm) for Android devices (and historically, for PalmOS, PocketPC and others) (For development purposes there's also a Linux client using ncurses or GTK.) Easy to port to other platforms, supports multiple languages and multi-device play via the internet, SMS, Bluetooth, and NFC. Not vaporware: one of TIME.com's top 5 PalmOS apps
    Downloads: 4 This Week
    Last Update:
    See Project
  • 6
    Don't miss you train ! Put your train schedules on your palm. The PalmOS program allows for easy displaying of train schedules. The converter allows to convert on your PC the schedules from a CSV format to the PDB file format used on Palm handhelds.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 7
    ZDoc for the palmpilot, exepak and sentinel are now going to be released from this site.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 8
    The Collaborative Virtual Workspace is a software environment that provides a "virtual building" where teams can communicate, collaborate, and share information, regardless of their geographic location. For documentation, see the "Home Page" link above.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 9
    Slirp is a SLIP/PPP link emulator. Clients think it's a normal connection! The Slirp Maintance Project is what it says: keep Slirp up and running! (Primary Developer needed!)
    Leader badge
    Downloads: 2 This Week
    Last Update:
    See Project
  • The All-in-One Commerce Platform for Businesses - Shopify Icon
    The All-in-One Commerce Platform for Businesses - Shopify

    Shopify offers plans for anyone that wants to sell products online and build an ecommerce store, small to mid-sized businesses as well as enterprise

    Shopify is a leading all-in-one commerce platform that enables businesses to start, build, and grow their online and physical stores. It offers tools to create customized websites, manage inventory, process payments, and sell across multiple channels including online, in-person, wholesale, and global markets. The platform includes integrated marketing tools, analytics, and customer engagement features to help merchants reach and retain customers. Shopify supports thousands of third-party apps and offers developer-friendly APIs for custom solutions. With world-class checkout technology, Shopify powers over 150 million high-intent shoppers worldwide. Its reliable, scalable infrastructure ensures fast performance and seamless operations at any business size.
    Learn More
  • 10
    robotfindskitten

    robotfindskitten

    robotfindskitten: a Zen simulation

    In 1997, Peter A. Peterson II held a contest for his now-defunct Nerth Pork magazine. The goal: come up with the best piece of art entitled "robotfindskitten". Leonard Richardson submitted the winning (read: only) entry, a Zen Simulation.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 11
    General information, and a pack of tools for manipulating the Persian (Farsi) language and script, on different platforms and operating systems.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 12
    Desktop utilities to manipulate Palm fonts: afnx, nfnt (lo/hi/both densities), NFNT, conversion from Type 1/TrueType/BDF/PCF/etc. Anti-aliased font support. Includes some GUIs. FreeType2 based. Now includes Font Collector for PalmOS side.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    OpenMobility\'s Vagabond is a client / server application that retrieves existing web content and transcodes it on the fly into a format accessible to Palm handhelds. It supports SSL and cookies, client supports extensive bookmarking and more.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 14
    PilRC is the PILot Resource Compiler. It takes an input file containing descriptions of Palm Pilot resources and outputs binary resources that can be included into a .prc file.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    With Romeo, you can construct custom PalmOS ROM images with extra applications of your choice and without any of the default applications that you never use.
    Leader badge
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    SuperWaba is a Virtual Machine for handhelds. Runs in PalmOS, Windows CE, Win32, and is fully emulated under JDK/browser. Supports Exceptions, has a complete set of UI controls (Palm/WinCE), double and long, grayscale/color, sockets/serial/IR/Bluetooth
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    Ali is a simple to use C API to parse XML data. It's scanf like approach is much easier than using SAX or DOM. A tutorial, complete reference documentation, and code examples are all available.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Assist takes plain english commands and interpretes them to carry out a specified action. Example: "remind me to hand in paper on monday" will create a reminder in your PIM with the subject: "hand in paper", due date being the very next Monday.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    BART Scheduler is a PalmOS application that determines the appropriate BART trains to take between two stations, given an approximate time to leave or arrive.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Blitzer is a simple tool for driving the SX-Blitz microcontroller programmer from Parallax. There is now a version for PalmOS devices.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Remote control MacOSX applications with any Bluetooth enabled Palm handheld.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    This allows any type of file to be moved between Win/Mac/Lin and a Palm, and between the web and the Palm (i.e. direct download). The "boxes" can be unzipped, installed or beamed, PNGs and GIFs can be viewed, and MIDI played, right from the palm plus nor
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    ConferInstall is a program and some documentation to facilitate setting up a Palm Sync Point to distribute conference data to attendees' PalmOS devices. It is meant to be used by people manning the infodesk at a conference and has been used at HAL2001.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    *** This page is no longer used by the Dasher project - please see http://www.inference.phy.cam.ac.uk/dasher/ *** Dasher is a data entry interface incorporating language modelling and driven by continuous two-dimensional gestures, e.g. a mouse, a stylus
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Doom Ultra-Light
    Doom, Ultra-Light and Experimental.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • Next
Want the latest updates on software, tech news, and AI?
Get latest updates about software, tech news, and AI from SourceForge directly in your inbox once a month.