Open Source C Software for Desktop Operating Systems

C Software for Desktop Operating Systems

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

  • 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.
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    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.
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  • 1
    VTun is the easiest way to create Virtual Tunnels over TCP/IP networks with traffic shaping, compression, and encryption. It supports IP, Ethernet, PPP and other tunnel types. VTun is easily and highly configurable. VPN, Mobile IP, Shaping, etc
    Leader badge
    Downloads: 4,033 This Week
    Last Update:
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  • 2
    D+ Browser
    A graphical web browser with an emphasis on security, performance, and portability.
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    Downloads: 42 This Week
    Last Update:
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  • 3

    Rikaisama (Legacy)

    Modification of Rikaichan with more features and customization options

    *** THIS ADD-ON IS NO LONGER SUPPORTED AND WILL NOT WORK WITH FIREFOX 57+ (however, it still works in Waterfox using a non-e10s window: "File > New Non-e10s Window") *** Rikaisama is a modification of the rikaichan Japanese-English popup dictionary that adds many features and customization options such as audio pronunciation, EPWING dictionary support, sanseido web dictionary support, word frequency, pitch accent, enhanced clipboard & save options, ability to create and add cards directly to an open Anki deck, "Super Sticky" mode, ability to remap shortcut keys, more fine-tuned startup options, and more. See http://rikaisama.sourceforge.net/ for more information. Supports Windows, Ubuntu, and newer versions of OSX.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 4
    Sozobon

    Sozobon

    K&R C compiler for the 68000

    From the old ATARI ST days, is Sozobon 2.0 the 68000 compiler. Includes JAS an assembler, TOP an optimizer and a linker.
    Downloads: 14 This Week
    Last Update:
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  • Simple, Secure Domain Registration Icon
    Simple, Secure Domain Registration

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  • 5
    sdvplayer
    A video player featuring dictionary look up for subtitle words with single click. Intended audience are those who watches foreign language videos with same language subtitling
    Downloads: 12 This Week
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  • 6

    StyroFoamRobot

    Cuts 3D objects from polystyrene foam (EPS/XPS)

    A robotic DIY styrofoam cutter consisting of one rotational and two translational axes. It cuts a variety of shapes out of styrofoam-like materials using a hot wire. This project documents the necessary hardware and software parts. Don't miss the follow-up project at http://raumschaum.org Its goal is to further develop hardware and software into an user friendly application.
    Downloads: 4 This Week
    Last Update:
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  • 7
    psDooM is a process monitor and manager for *nix systems. It could be considered a graphical interface to the 'ps', 'renice', and 'kill' commands. psDooM is based on XDoom, which is based on id Software's 'Doom'.
    Downloads: 6 This Week
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  • 8
    Development environment for OS/2 and DOS
    Downloads: 3 This Week
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  • 9
    This is the source code for the 1994 DOS shareware game God of Thunder (Turbo C/Assembler). It is a good example of how not to code in C. I was once told it was impressive that it actually worked, so that's something. This is only the main source code here. I have released it to the public domain. Do whatever you want with it. It will not compile as-is. There is at least 1 3rd party compression file missing and the sound/music code was a licensed library that is not open source. The opening/high score/game select screens are also not included. The game itself can be found for free on Steam. The graphics of the game are not open source and may not be used in any commercial projects. The music and sound effects are public domain but I would appreciate credit to "Roy Davis" if you use any of the music. He was my father and he passed away in 2011. The music and other stuff is in GOTstuff.zip. Sorry, but I cannot offer any support.
    Downloads: 5 This Week
    Last Update:
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  • Enterprise and Small Business CRM Solution | Clear C2 C2CRM Icon
    Enterprise and Small Business CRM Solution | Clear C2 C2CRM

    Voted Best CRM System with Top Ranked Customer Support. CRM Management includes Sales, Marketing, Relationship Management, and Help Desk.

    C2CRM consists of four modules that integrate to provide a comprehensive CRM solution: Relationship Management, Sales Automation, Marketing Automation, and Customer Service. Only buy what each user needs.
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  • 10
    xmlroff is a fast, multilingual, multi-platform XSL formatter that transforms XSL-FO (or any XML with a stylesheet) into PDF or PostScript. New development is at http://xmlroff.org. This SF project is inactive.
    Downloads: 1 This Week
    Last Update:
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  • 11
    Gamers.IRC

    Gamers.IRC

    Full mIRC MSL Script

    Gamers.IRC is a full MSL Script for mIRC, the most popular Windows IRC client. Gamers.IRC is for Windows 95 and higher. Source code: Download and run the installer. Open the .grc and .ini files with notepad.
    Downloads: 1 This Week
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  • 12
    PangoPDF is now PangoXSL. PangoXSL implements several of the inline properties defined by XSL that are not currently implemented by Pango.
    Downloads: 1 This Week
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  • 13
    project obsoleted since python 2.5 already ships with a uuid package.
    Downloads: 1 This Week
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  • 14
    crossemx

    crossemx

    EMX compiler hosted on Win32

    I'm taking various older versions of the OS/2 based EMX port of GCC and re-hosting them on Win32. This way I can use multiple core machines to build my OS/2 side projects.
    Downloads: 1 This Week
    Last Update:
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  • 15
    pilot-qof provides a query interface to data on a Palm device, using pilot-link and QOF - the Query Object Framework. pilot-qof supports reading addressbook, datebook, expenses and ToDo data and runs SQL-type queries on the live data or a QSF XML fil
    Downloads: 1 This Week
    Last Update:
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  • 16
    xtalk is a multi-user IM/chat room system. It can be used to chat with other people within a colourful yet minimalistic command-oriented client. An xtalk server runs continuously at mafianode.com.
    Downloads: 1 This Week
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  • 17
    HX DOS

    HX DOS

    HX DOS extender

    I'm preserving Japheth's MS-DOS extender. It features 16bit, and 32bit capabilities with the ability to run 16bit OS/2 program, and 32bit Win32 code on Vanilla MS-DOS.
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    Downloads: 1 This Week
    Last Update:
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  • 18
    Amberfish Arts is a community for enthusiasts of classic adventure games as well as a hub for high-quality fan projects. IP-SCUMM 2.0 is the 2D adventure engine behind some of those projects. Coded in C++, IP-SCUMM is both very portable and feature rich.
    Downloads: 0 This Week
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  • 19
    AutoInstaller is a program which can install and uninstall programs based on the decision of plug-ins. These could include by schedule, at user demand, or a more complex scenario. It uses plug-ins to handle tar.gz, tgz, zip, and rpm files.
    Downloads: 0 This Week
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  • 20
    BNL OS
    BNL OS is a free, modern operating system based on the design of Windows XP/2003.This is not a Linux based system, and shares none of the unix architecture. Please remember, this is in the development stage, and is not reccommended for everyday use.
    Downloads: 0 This Week
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    See Project
  • 21
    Biscuitlog is a database AND community for information on sound recordings. It allows users to share information on obscure musical recordings and friendly banter as well.
    Downloads: 0 This Week
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  • 22
    BrewNIX is the brewing software for many varieties of *nix, but is in bad need of help. Rather than pay for some expensive Windows platform program, join in the development of this open source alternative.
    Downloads: 0 This Week
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  • 23
    BuGLe combines a graphical OpenGL debugger with a selection of filters on the OpenGL command stream. The debugger allows viewing of state, textures, framebuffers and shaders, while the filters allow for logging, error checking, video capture and more.
    Downloads: 0 This Week
    Last Update:
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  • 24

    C OpenGL GUI

    A windows style gui written in C using OpenGL

    The aim was to create an opengl gui with the look and feel of Windows but only using C.
    Downloads: 0 This Week
    Last Update:
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  • 25
    P2P application protocol framework (RFC3080, RFC3081) for connection-oriented, async request/response messages. Allows multiplexing of message streams over one transport connection. Supports binary and textual messages, TLS, SASL/Anonymous, SASL/OTP.
    Downloads: 0 This Week
    Last Update:
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