Open Source C Software

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.

  • Waitlist App and Paging System Icon
    Waitlist App and Paging System

    We make it cheaper and easier to manage your waitlist, order backlog, and just about any other waiting scenario.

    Streamline your customer flow with our SMS-powered waitlist, reservations, and queue management app for restaurants, health care providers, and many other businesses.
  • Providing the industry's best pre-construction, sales, and marketing software. Icon
    Providing the industry's best pre-construction, sales, and marketing software.

    For construction contractors, specialty contractors, home builders, and real estate agents

    TopBuilder is the most advanced sales and marketing software for construction companies, home builders, and real estate professionals. As experienced professionals in engineering, construction, and software technology, we have redefined what it means to be a cloud-based CRM. This means we have designed our software to be the most effective at increasing collaboration, time saving, and profitability for you and your company. With our new mobile functionality, you get all these wonderful benefits anywhere at any time. Experience the new industry standard with TopBuilder.
  • 1
    Grisbi
    Grisbi is a very functional personal financial management program with a reasonable set of homefinance features.
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    Downloads: 588 This Week
    Last Update:
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  • 2
    Tux Paint

    Tux Paint

    An award-winning drawing program for children of all ages

    Tux Paint is a free, award-winning drawing program originally created for children ages 3 to 12, but enjoyed by all! It combines an easy-to-use interface, fun sound effects, and an encouraging cartoon mascot who guides children as they use the program. You're presented with a blank canvas and a variety of drawing tools to help them be creative. Along with paintbrush, shapes and text, Tux Paint includes a "stamp" feature to add pre-drawn or photographic imagery to pictures, and a set of "magic tools" that provide filter effects (like blur, tint and waves) and interesting drawing tools (like train tracks, bubbles and grass). Tux Paint includes a collection of "starter" images, both coloring-book style and photo-realistic, and a large collections of stamps are available as a separate download. Additional content can be added by parents & teachers, or downloaded from 3rd parties. Tux Paint is available for Windows, macOS, Android, Linux, & Haiku operating systems, among others.
    Downloads: 14,542 This Week
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  • 3
    Robolinux

    Robolinux

    MAX Privacy with Robolinux R12.12

    All 3 Robolinux Desktop versions come with new login and grub boot splash screens & LibreWolf browser which has the highest privacy! LibreWolf is a fork of Firefox so you can use its data. The Legacy Bios isos only work in VM's & Non UEFI PC's. Don't miss 50% Off 12+ price only $59.95 Expires March 27th 2024 The 12+ Sale details Robo UNTRACKER Custom Installer FREE! Save $40 FAAST Boot Custom Installer FREE! Save $40 Backdoor security Custom Installer FREE! Save $40 12 Advanced upgrades! Privacy App installers FREE! Stealth VM for FREE! Save $40 C Drive to VM for FREE! Save $40 The UNTRACKER makes you 100% anonymous on the internet so you can stop being tracked & traced by Evil Governments & Spy Agencies! All Robolinux R12 rolling realease Legacy BIOS & UEFI versions have the newest 5.15 Linux Kernel, compilers & software libraries & applications. Each rock solid R12 version has Long Term Support through 2025 Follower of YASHUA! John Martinson Robolinux
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    Downloads: 125 This Week
    Last Update:
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  • 4
    Pidgin IM

    Pidgin IM

    A universal instant messaging (IM) program

    See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses.
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    Downloads: 9,410 This Week
    Last Update:
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  • Premier Construction Software Icon
    Premier Construction Software

    Premier is a global leader in financial construction ERP software.

    Rated #1 Construction Accounting Software by Forbes Advisor in 2022 & 2023. Our modern SAAS solution is designed to meet the needs of General Contractors, Developers/Owners, Homebuilders & Specialty Contractors.
  • 5
    TortoiseSVN

    TortoiseSVN

    An Apache SVN client, right where you need it most

    TortoiseSVN is a Subversion (SVN) client, implemented as a windows shell extension. Which means it's available right where you need it: in the Windows file explorer. It's intuitive and easy to use, since it doesn't require the Subversion command line client to run. Simply the coolest Interface to (Sub)Version Control!
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    Downloads: 29,940 This Week
    Last Update:
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  • 6
    Small HTTP server

    Small HTTP server

    Universal server

    It is not only a web server, it is also Mail server, DNS server, FTP server, Proxy server, VPN server and client... All in one! This program will help you to open all the possibilities Internet can offer for your company - public site, provide Internet access and personal mailboxes for each employee! HTTP server. Server Side Includes. Regular expression in SSI. CGI interface for scripts (Executable files; Perl,PHP, or another external interpreters) ISAPI interface. Virtual hosts and directories Mail POP3 server. SMTP server. FTP server HTTP proxy server DNS server DHCP server HTTP TLS VPN server
    Downloads: 27 This Week
    Last Update:
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  • 7
    MPC-BE

    MPC-BE

    Media Player Classic - BE

    Media Player Classic - BE is a free and open source audio and video player for Windows. Media Player Classic - BE is based on the original "Media Player Classic" project (Gabest) and "Media Player Classic Home Cinema" project (Casimir666), contains additional features and bug fixes.
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    Downloads: 7,508 This Week
    Last Update:
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  • 8
    NSIS: Nullsoft Scriptable Install System

    NSIS: Nullsoft Scriptable Install System

    Windows installer development tool

    NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows installers. It is designed to be as small and flexible as possible and is therefore very suitable for internet distribution. Being a user's first experience with your product, a stable and reliable installer is an important component of succesful software. With NSIS you can create such installers that are capable of doing everything that is needed to setup your software. NSIS is script-based and allows you to create the logic to handle even the most complex installation tasks. Many plug-ins and scripts are already available: you can create web installers, communicate with Windows and other software components, install or update shared components and more.
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    Downloads: 5,296 This Week
    Last Update:
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  • 9
    Clover EFI bootloader

    Clover EFI bootloader

    Boot macOS, Windows, and Linux on Mac or PC with UEFI or BIOS firmware

    Project has moved to https://github.com/CloverHackyColor/CloverBootloader.
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    Downloads: 2,438 This Week
    Last Update:
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  • Complete Marketplace Solution for Auction Sites Icon
    Complete Marketplace Solution for Auction Sites

    Companies that need an shopping cart solution with auction functionality.

    Let our experts guide you through each phase of design from layouts and feature design, to testing and product launch. Our auctions can be deployed as-is or customized to your specific business requirement. Our E-commerce experts will help you choose the right features for your business model. Reverse Auction : The reverse auction, A Service buyer creates detailed specifications into the secure web based reverse auction platform and Service provider submit their bids in real time. Forward Auction : The Forward auction are electronic auctions, which can be used by sellers to sell their items to many potential buyers. Sellers and buyers can be individuals, organizations etc. Items are commonly placed at a special site for auction (e.g. eBay.com). Buyers can continuously bid for the items they are interested in.
  • 10
    AkelPad
    A simple notepad-like text editor with many features. It is designed to be a small and fast.
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    Downloads: 1,130 This Week
    Last Update:
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  • 11
    gPhoto
    gPhoto is a program and library framework that lets users download pictures from their digital cameras. The libgphoto2 library gives you access to hundreds of models of digital cameras on several platforms. GIT repo and Issue tracker lives at https://github.com/gphoto/ these days.
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    Downloads: 3,630 This Week
    Last Update:
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  • 12
    fre:ac - free audio converter

    fre:ac - free audio converter

    Audio converter and CD ripper for various formats

    fre:ac is a free audio converter and CD ripper for various formats and encoders. It features MP3, MP4/M4A, WMA, Ogg Vorbis, FLAC, AAC, and Bonk format support, integrates freedb/CDDB, CDText and ID3v2 tagging and is available in several languages.
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    Downloads: 330 This Week
    Last Update:
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  • 13
    XBMC

    XBMC

    A media player software and entertainment system application framework

    XBMC Media Center is a free cross-platform media player software and entertainment system application framework for Linux, Mac, and Windows. XBMC is capable of playing back and streaming all popular video, audio, and picture formats out-of-the-box.
    Downloads: 0 This Week
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  • 14
    Navit
    Modular, touch screen friendly navigation system with GPS tracking, realtime routing engine and support for various vector map formats. Works on a wide range of devices, from computers to smartphones.
    Downloads: 23 This Week
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  • 15
    BlackTools tcl

    BlackTools tcl

    ultimate channel management tcl script for eggdrop

    BlackTools is the most complete channel management tcl script for eggdrop/windrop who can manage channels from all the IRC networks, although some modules are specifically designed only for Undernet network. Offers everything you need for you to start using your eggdrop by having a lots of commands, protections, modules that make your channel more safe and your life easier.
    Downloads: 0 This Week
    Last Update:
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  • 16
    ISP-fW is a firewall script that provides port forwarding, packet filtering, stateful packet inspection, port redirection, masquerading, SNAT/ DNAT, TOS, and never the last it generates htb rules for bandwich management. Includes: htb-tools, mipclass
    Downloads: 0 This Week
    Last Update:
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  • 17
    ApexDC++

    ApexDC++

    The pinnacle of file-sharing and chat - an innovative DC client!

    ApexDC™ is an innovative Direct Connect client based on the DC++ and StrongDC++ projects. Direct Connect provides a rare blend of seamless file sharing and community based chat and messaging between users. ApexDC features plugins and scripting through Lua and much more. Both operators and users alike should find it a pleasant experience. Note: as of May 28th 2016 ApexDC is now primarily distributed as two separate installers one targetting 32bit and the other 64bit operating systems. Additionally XP compatible binaries are now only offered as a separate download from the files section.
    Leader badge
    Downloads: 226 This Week
    Last Update:
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  • 18
    deepin
    deepin is a Debian-based distribution that aims to provide an elegant, user-friendly and reliable operating system. It does not only include the best the open source world has to offer, but it has also created its own desktop environment called DDE or Deepin Desktop Environment which is based on the Qt 5 toolkit. Deepin focuses much of its attention on intuitive design. Its home-grown applications, like Deepin Software Centre, DMusic and DPlayer are tailored to the average user. Being easy to install and use, deepin can be a good Windows alternative for office and home use.
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    Downloads: 151 This Week
    Last Update:
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  • 19
    UltraDefrag

    UltraDefrag

    Increase your system performance with this easy to use tool

    UltraDefrag is a disk defragmenter for Windows, which supports defragmentation of locked system files by running during the boot process. It is easy to use without any complicated scripting or a huge load of configuration settings. You can filter the files processed by size, number of fragments, file name and path. You can terminate the process early by specifying an execution time limit.
    Leader badge
    Downloads: 1,235 This Week
    Last Update:
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  • 20
    matgts

    matgts

    programs for geotechnical engineering and mathematics

    Computational software for geotechnical engineering and mathematics: https://sourceforge.net/projects/matgts/files/ mtfem - finite element analysis, 2D, plane strain state (C, SDL); mtpile - analysis of a laterally loaded pile (C, SDL); mtslope - slope stability and displacement analysis using limit equilibrium (C,SDL); jswall - analysis of a diaphragm wall (JavaScript); jsmath - mathematics: polynomial equations, linear systems of equations, eigenvalues, matrix multiplication, matrix inversion (JavaScript); mtwall - obsolete program for analysing a diaphragm wall (C, SDL). Some Javascript programs require at least Firefox 3 or 4, because of <canvas> and "use strict";. Some general recommendations for compiling the C programs are here: https://sourceforge.net/projects/bars3d/ (SDL 1.2 is required)
    Downloads: 4 This Week
    Last Update:
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  • 21
    Ario is a GTK2 client for MPD (Music player daemon). The interface used to browse the library is inspired by Rhythmbox but Ario aims to be much lighter and faster.
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    Downloads: 41 This Week
    Last Update:
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  • 22
    LinuxCNC
    LinuxCNC controls CNC machines. It can drive milling machines, lathes, 3d printers, laser cutters, plasma cutters, robot arms, hexapods, and more.
    Downloads: 0 This Week
    Last Update:
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  • 23
    Mailman is the GNU mailing list manager. It provides standard list management features, integrated with a web interface. Please note: the subversion repository has been retired. Please see http://wiki.list.org/x/DgAJ for details.
    Downloads: 3 This Week
    Last Update:
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  • 24
    PNotes
    PNotes is light-weight, flexible, skinnable manager of virtual notes on your desktop. It supports multiple languages, individual note's settings, transparency and scheduling. Absolutely portable as well - no traces in registry. PNotes.NET edition requires .NET framework 4 Client Profile
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    Downloads: 382 This Week
    Last Update:
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  • 25
    QMC2 is a Qt based multi-platform GUI front end for MAME NOTE: A new version is hosted and developed at https://github.com/qmc2/qmc2-mame-fe
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    Downloads: 7 This Week
    Last Update:
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