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

  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

    Build generative AI apps with Vertex AI. Switch between models without switching platforms.
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  • 1
    WinMerge

    WinMerge

    Windows visual diff and merge for files and directories

    WinMerge is a Windows tool for visual difference display and merging, for both files and directories. It is highly useful for determining what has changed between file versions, and then merging those changes. WinMerge has Unicode support, Flexible syntax coloring editor, Visual SourceSafe integration, and Windows Shell integration. Regexp filtering for filenames and lines. Side-by-side line difference and highlights differences inside lines. A file map shows the overall file differences in a location pane. The user interface is translated into several languages.
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    Downloads: 31,847 This Week
    Last Update:
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  • 2
    ClipAngel

    ClipAngel

    Clipboard history capture and paste tool

    This program belongs to class "Clipboard Manager". It captures many clipboard objects and allows user to select and paste one in any program. Inspired by analogs: ClipDiary, Ditto, AceText. Main priorities: usability, compatibility, reliability. Requires .Net Framework 4.52+ (Windows Vista+/Server 2008+)
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    Downloads: 381 This Week
    Last Update:
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  • 3
    CLISP - an ANSI Common Lisp
    CLISP is a portable ANSI Common Lisp implementation and development environment by Bruno Haible. Interpreter, compiler, debugger, CLOS, MOP, FFI, Unicode, sockets, CLX. UI in English, German, French, Spanish, Dutch, Russian, and Danish.
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    Downloads: 288 This Week
    Last Update:
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  • 4
    searchmonkey

    searchmonkey

    Powerful desktop search app for Windows, Linux and Mac

    Power searching on your desktop without the pain. Perform powerful desktop searches without having to index your system using regular expressions. Graphical equivalent to find/grep. Available for Windows (JAVA) and Linux (Gnome & KDE) and easy to translate into your locale.
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    Downloads: 62 This Week
    Last Update:
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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
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  • 5
    The Smart Common Input Method platform (SCIM), is an input method platform supporting more than thirty languages (CJK and many European languages) for POSIX-style operating systems including Linux and BSD.
    Downloads: 107 This Week
    Last Update:
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  • 6
    Tilem - TI Linux Emulator
    TilEm is an emulator for the Z80 series of Texas Instruments graphing calculators. It supports all of the existing models in this series (TI-73, TI-76.fr, TI-81, TI-82, TI-83, TI-83 Plus, TI-84 Plus, TI-85, and TI-86.) TilEm features detailed emulation of all aspects of the calculator hardware, and includes a debugger for writing assembly programs.
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    Downloads: 79 This Week
    Last Update:
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  • 7
    PHP File Manager

    PHP File Manager

    phpFileManager a complete filesystem management tool on a single file.

    phpFileManager is a complete filesystem management tool on a single file. A server administration tool using PHP, meant for rapid file access, and also to verify the server configuration and security. The script can be renamed and deployed on an unique known url, and offers password protection.. All dependencies, like images, js and css files, are included inside the same file, so that the script can run even on offline devices, like a local Raspberry Pi, or ESP32 microcontroller. The size of the script is bellow 1Mb, and i want to make it even smaller. To conclude, this script is also a repository of several hand made functions, organized in sections, meant for learning PHP and explore all PHP capabilities. You can learn, copy and use them on your own projects. Help the project with a donation: Will allow the view of two phpFileManager from diferent URLs on the same screen. Like MC (Midnight Commander) does. https://www.dulldusk.com/product/donation-for-phpfilemanager/
    Downloads: 48 This Week
    Last Update:
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  • 8
    TurboPower Abbrevia

    TurboPower Abbrevia

    Advanced data compression toolkit for Delphi and C++Builder

    Abbrevia is a compression toolkit for Delphi, C++Builder, Kylix, and Free Pascal. It supports compressing and decompressing PKZIP, Microsoft CAB, tar, gzip, and bzip2 archives, and can create self-extracting executables. On Windows it also provides Delphi wrappers for the LZMA, Bzip2, and WavPack SDKs, and PPMd decompression. Abbrevia also has several visual controls that simplify displaying and manipulating archives, including treeview and listview components.
    Downloads: 17 This Week
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  • 9
    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: 83 This Week
    Last Update:
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  • $300 in Free Credit Towards Top Cloud Services Icon
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  • 10

    Process Manager for Windows (PMW)

    A easy to use task manager that lets you control your apps

    Process Manager for Windows is a smart Task Manager that lets you manage priority, transparency, visibility of your processes with few clicks. It lets you kill one process or all processes in with just shortcut key and let you gain control of your unresponding windows computer and let you regain all the resources back, of course when killing apps you always have the risk of losing the unsaved data. ================= This tool flourished from 2008 to 2013, and was downloaded over 200K times, However, it was decommissioned in 2013 by the sole developer Arif Ali Saiyed This tool was free with optional donations to milaap.org that raised about $1400 and just that small amount helped 15,372 needy people through microlending and created a new source of income stream for 3401 entrepreneurs. Check out the link below to see the impact you all made by donating. https://milaap.org/users/6877/impact
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    Downloads: 11 This Week
    Last Update:
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  • 11
    MicroLua DS

    MicroLua DS

    MicroLua brings Lua on the Nintendo DS for easy programming

    MicroLua brings the programming language Lua on the Nintendo DS for easy and fast development of beautiful homebrews! Based on brunni's µLibrary, µLua is a Lua interpreter featuring fast drawings and many important functionalities. You can exploit your Nintendo DS with the simplistic yet powerful Lua language! On your cartridge, MicroLua is a NDS executable that shows as its frontend a great graphical shell from which you can explore your cartridge and run Lua scripts written for µLua. µLua already benefits from an impressive collection of homebrews, from a complete and expandable MicroLua IDE to enjoyable games, produced by an active and helpful community.
    Downloads: 31 This Week
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  • 12
    Debreate - Debian Package Builder

    Debreate - Debian Package Builder

    A utility for creating Debian packages (.deb)

    Debreate is a utility to aid in creating Debian (.deb) packages. Currently it only supports binary packaging (note that the term "binary package" is used loosely, as such packages can contain scripts & non-code items such as media images, audio, & more) for personal distribution. Plans for using backends such as dh_make & debuild for creating source packages are in the works. But source packaging can be quite different & is a must if you want to get your packages into a distribution's official repositories or a Launchpad Personal Package Archive (PPA). The latter from which Debreate is available.
    Downloads: 3 This Week
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  • 13
    The goal of this project is to make possible to access Progress database from any external program that can use sockets. The server (broker and agents) are written in Progress 4GL and made use of sockets capabilities of Progress V9.
    Downloads: 8 This Week
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  • 14
    VAInstall is a multi-platform installer written in Java. It allows complete remapping of files from the packager's host to the end-users's host. There are two graphic and two text-based look&feels.
    Downloads: 7 This Week
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  • 15
    m23

    m23

    Your linux deployment tool!

    m23 is a free software distribution system (license: GPL), that installs (via network, starting with partitioning and formatting) and administrates (updates, adds / removes software, adds / removes scripts) clients with Debian, (X/K)Ubuntu and LinuxMint. It is used for deployment of Linux clients in schools, institutions and enterprises. The m23 server is controlled via a web interface. A new m23 client can be installed easily in only three steps. Group functions and mass installation tools make managing a vast number of clients comfortable. The integration of existing clients (with .deb-based distributions) into the system is possible, too. Client backup and server backup are included to avoid data loss. With the integrated virtualisation software, m23 can create and manage virtual m23 clients, that run on real m23 clients or the m23 server. Scripts and software packages (for installation on clients) can be created directly from the m23 web interface.
    Downloads: 7 This Week
    Last Update:
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  • 16
    ZK - Simply Ajax and Mobile
    ZK is an open-source Java framework for building modern web and mobile applications. It enables developers to create rich, interactive UIs using only Java — no JavaScript required. With 200+ Ajax-powered components, event-driven architecture, and support for popular technologies like Spring, Java EE, and JSP/JSF, ZK makes it simple to deliver powerful and user-friendly web applications.
    Downloads: 1 This Week
    Last Update:
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  • 17
    JPPF

    JPPF

    The open source grid computing solution

    JPPF makes it easy to parallelize computationally intensive tasks and execute them on a Grid.
    Downloads: 1 This Week
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  • 18

    Net Tools for Development

    A collection of network-oriented tools

    This Eclipse RCP application contains several free, useful network tools. Among others: - Standard network tools: ping, netstat, traceroute, nslookup - A port scanner - Servers: HTTP, FTP, TFTP servers - an HTTP proxy - A TCP tunnel - Clients: FTP client, embeddable PuTTY (for Windows only)
    Downloads: 2 This Week
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  • 19
    GPU,  a Global Processing Unit

    GPU, a Global Processing Unit

    A framework for distributed computing

    An extensible framework for distributed computing on P2P grids. We support peaceful free and open research and build an internet supercomputer. We render movies, solve Eternity puzzles, predict climate and improve a ~30 GHz cluster of clients.
    Downloads: 3 This Week
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  • 20
    USSU Unlimited

    USSU Unlimited

    Unattended System Software Updater Unlimited

    USSU Unlimited helps you to manage and keep your standard Windows applications up-to-date. It gives the possibility to add applications yourself. Use it to upgrade already installed applications, it highlights outdated or missing applications and advises to download and install them in a single step. It takes away those frustrations to update everything manually. Instead it leafs your with a updated computer and a smile! Currently 45 standard applications are supported. more supported applications will be available soon... Windows network deployment/management will be available Q3 2013. Supported on Windows XP, Vista, 7, 8 and 2008R2.
    Downloads: 5 This Week
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  • 21
    A queries management software. It was primary designed for an IT team to manage the incidents, but can be used to manage any query, inside or outside an organization. Can be appropriate for Service Desk management.
    Downloads: 5 This Week
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  • 22
    WHMCS VPS Reseller

    WHMCS VPS Reseller

    Cloud VPS Reseller Provisioning Module for WHMCS

    Best WHMCS VPS Reseller Module on Marketplace Integrate with ready-made WHMCS module to leverage auto-provision of Cloud VPS servers from your private-label cloud controller. By integrating with Rad Web Hosting VPS Reseller module, your VPS procurement headaches are over. Your Own Virtual Private Datacenter You instantly have access to your own Virtual Private Cloud VPS cluster-with automated server provisioning available direct from your WHMCS and delivered by you to your end-users. With on-demand VPS provisioning and a full suite of applications and included OS templates, you'll greatly reduce the time-to-market-all without the hassle and costs of building your own cloud data center from scratch. Become Cloud Leaders Your end users will not only have VPS administration abilities from the WHMCS interface, thanks to our VPS Reseller provisioning module, but they can also access incredible feature-rich white-label VPS control panel.
    Downloads: 2 This Week
    Last Update:
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  • 23
    LOG4PLSQL is a PLSQL framework for logging in all PLSQL code this project was born from the log4J spirit (and use it). You have the possibility to log apart from transaction and use all LOG4J feature.
    Downloads: 1 This Week
    Last Update:
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  • 24
    FileX is GUI based HEX editor with advanced functionality.
    Downloads: 2 This Week
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  • 25
    KENS is a group of libraries that allow to compress and decompress data using the Kosinski, Enigma, Nemesis and Saxman formats. They are being programmed in C/C++ (VC++ for the Win32 version) and can be used by any application (even Win32 VB apps).
    Downloads: 2 This Week
    Last Update:
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