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

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

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  • 1
    ophcrack

    ophcrack

    A Windows password cracker based on rainbow tables

    Ophcrack is a Windows password cracker based on a time-memory trade-off using rainbow tables. This is a new variant of Hellman's original trade-off, with better performance. It recovers 99.9% of alphanumeric passwords in seconds.
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    Downloads: 3,873 This Week
    Last Update:
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  • 2
    BRL-CAD

    BRL-CAD

    Open Source Solid Modeling CAD

    BRL-CAD is a powerful cross-platform constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing for rendering & geometric analyses, network distributed framebuffer support, image & signal-processing tools.
    Downloads: 261 This Week
    Last Update:
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  • 3

    hpsx64

    Highly-Experimental Playstation Simulator x64

    Highly-Experimental Playstation Simulator for x64 based systems. This is a WORK IN PROGRESS.
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    Downloads: 31 This Week
    Last Update:
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  • 4
    bbwin
    BBWin is a Windows agent for Xymon Server. It is written in C++ with boost library and use WiX to generate msi installer. It is should be compatible with big-brother server also.
    Downloads: 11 This Week
    Last Update:
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  • Build Data Resilience - Take the Assessment Today Icon
    Build Data Resilience - Take the Assessment Today

    Can you recover when it matters most? Take this quick assessment to identify gaps and build greater recovery confidence.

    Is your recovery strategy as strong as you think? Take this quick self-assessment to check your recovery readiness and gain tailored insights. In only 2 minutes, you'll learn where you fall on the recovery readiness scale.
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  • 5
    OpenSAF
    Open Source High Availability Middleware Generally Based on SA Forum Specifications
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    Downloads: 26 This Week
    Last Update:
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  • 6
    Yet Another (remote) Process Monitor
    Yet Another Process Monitor (YAPM) is a powerful process viewer for Windows that monitors the services & processes, their modules, threads, handles, windows, TCP/UDP connections... etc. running on local system or on any of the computers on your network.
    Downloads: 6 This Week
    Last Update:
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  • 7
    Wintel based platform system power management and analysis utilities.
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    Downloads: 22 This Week
    Last Update:
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  • 8
    Revival/2k is a modular BBS/suite of internet servers and a web-site management system. It consists of multiple web applications (forums, mail, login, etc), internet servers (NNTP, POP3, etc) and a Telegard/Renegade styled telnet server all interacting
    Downloads: 8 This Week
    Last Update:
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  • 9
    Plugins for the Code::Blocks IDE to support interpreted languages. File Manager and Tools+ plugins are now part of Code::Blocks contrib. Code in SVN. Active development is at github.com/spillz/codeblocks-python. SVN here is no longer maintained.
    Downloads: 11 This Week
    Last Update:
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  • Build Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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  • 10
    An easy to use Development Environment for OS developers to design, write, compile, test, and publish new or existing OS projects with ease.
    Downloads: 21 This Week
    Last Update:
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  • 11
    TEA is a text editor that provides a wide range of text-processing functions (over 100) and the syntax highlighting. There are two branches of TEA: Qt-based and GTK-based.
    Downloads: 10 This Week
    Last Update:
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  • 12
    With this project I intend to write a really, really simple OS, just for fun and learning. I think I will never have a really usable version, as I said, that's no my objective.
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    Downloads: 8 This Week
    Last Update:
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  • 13
    Common Hardware Recovery Solutions by Ukrainian-Russian network
    Downloads: 4 This Week
    Last Update:
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  • 14
    <b>Msn4Lin</b> is a messenger client for X. At the moment available in Tcl/Tk (easy installation, but with failures) or C++ with <a href=/projects/xlion/>XLion</a> (difficult installation, but more stable). It supports plugins, skins, multilanguage, ...
    Downloads: 7 This Week
    Last Update:
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  • 15
    This is a character and items editor for the game Diablo 2 (D2). This also features updates for the expansion pack Diablo 2 LOD. Features include stat editor, money, inventory, and gem upgrade system. Donations are needed and will soon be accepted!
    Downloads: 5 This Week
    Last Update:
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  • 16
    A small, fast, secure, anti-spam SMTP mail server (MTA). Delivery to mbox files and Maildirs supported. qwik-smtpd supports RBL, relay checking, raw/custom message handlers, and more. Custom authentication via checkpassword and a qmail-compatible configu
    Downloads: 5 This Week
    Last Update:
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  • 17
    Bochs RPC (win32) Debugger

    Bochs RPC (win32) Debugger

    Bochs RPC (win32 Remote Procedure Call) Debugger

    A modified Bochs internal debugger to support debugging through win32 remote procedure call.
    Downloads: 4 This Week
    Last Update:
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  • 18
    Free Agents DIDS is a distributed intrusion detection system that you place on each host on your network. Agents intercommunicate with aes encryption, automatically alert you, and secure your network for free!
    Downloads: 2 This Week
    Last Update:
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  • 19
    Torrent Cleaner

    Torrent Cleaner

    This app deletes the copies that most torrent clients keep in your pc.

    The most torrent clients keep copies of every torrent or even magnet url you load by taking you space and making fast proccessing difficult...But Torrent Cleaner deletes these copies and makes you happier ;) It can only be used for Windows 7 and Vista but this won't be for long. This app is here as an early beta version but soon we are going to have a site and many updates of it...some updates i have think are: GUI, WinXP OS and other languages Visit the website for more information and for the features of every version
    Downloads: 2 This Week
    Last Update:
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  • 20
    Back Orifice XP is a network remote administration tool, gives control of the system, network, registry, passwords, file system, and processes. Based in BO2K 1.1 but with a new plugin architecture.
    Downloads: 4 This Week
    Last Update:
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  • 21
    CitrixTS4Linux is a GUI remote access server application written in C and C++ to allow access to RPM-based Linux terminal servers via the free Citrix ICA client.
    Downloads: 3 This Week
    Last Update:
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  • 22
    Clock XP is a .NET time synchronization client (SNTP) with plugin support. It's designed to operate on Windows 2000, XP and Windows Vista.
    Downloads: 3 This Week
    Last Update:
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  • 23
    Interlocking system for modular model railroading. The goal is the development of hard- and software for an model interlocking interfacing on the one hand to the model railroad and on the other to the model of the userinterface of an real interlocking.
    Downloads: 3 This Week
    Last Update:
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  • 24
    OSNOS (Open Source Network Operating System) is an operating system desigend to meet the needs of small to medium networks. It will support server based applications, and will handle routing of packets through the network, and support multi-user logins.
    Downloads: 3 This Week
    Last Update:
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  • 25
    Unified Sessions Manager

    Unified Sessions Manager

    Pioneering Private and Public Cloud Management since 2008

    The UnifiedSessionsManager supports the integrated management of user sessions within Private-Clouds, comprising heterogeneous IT landscapes of various physical and virtual machines, hypervisor management, and virtual user sessions with remote desktops. Extracted documents see https://sourceforge.net/projects/ctys-doc.
    Downloads: 3 This Week
    Last Update:
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