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.

  • Our Free Plans just got better! | Auth0 Icon
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  • Cloud SQL for MySQL, PostgreSQL, and SQL Server Icon
    Cloud SQL for MySQL, PostgreSQL, and SQL Server

    Focus on your application, and leave the database to us

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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: 34,194 This Week
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  • 2
    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: 7,846 This Week
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  • 3
    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: 111 This Week
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  • 4
    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.
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    Downloads: 106 This Week
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  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

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

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • 5
    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/
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    Downloads: 28 This Week
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  • 6
    ZK - Simply Ajax and Mobile
    Ajax+Mobile Java Web framework. With 200+ Ajax components and event-driven, Ajax/RIA apps are as effortless and rich as desktop apps and HTML/XUL pages. Support JSP/JSF/JavaEE/Spring, Ajax Push and Client-fusion; also Java/Groovy/Python/JavaScript.
    Downloads: 14 This Week
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  • 7
    Video Memory stress Test
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    Downloads: 27 This Week
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  • 8
    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: 5 This Week
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  • 9
    Cinemagoer

    Cinemagoer

    Python package to retrieve and manage data of the IMDb

    Cinemagoer is a Python package useful to retrieve and manage the data of the IMDb movie database about movies, people, characters and companies. Platform-independent, it can retrieve data from both the IMDb's web server and a local copy of the whole db.
    Downloads: 2 This Week
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  • Powering the best of the internet | Fastly Icon
    Powering the best of the internet | Fastly

    Fastly's edge cloud platform delivers faster, safer, and more scalable sites and apps to customers.

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  • 10

    Hex File Loader

    A software for upload .hex files to ATMEGA328P and compile .asm files

    Downloads: 6 This Week
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  • 11
    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: 4 This Week
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  • 12

    Launcher Creator

    Create your simple portable autorun!

    Create your simple portale Autorun Application. No require programming skill. Just click! and set event for your small application.
    Downloads: 4 This Week
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  • 13
    Daphne

    Daphne

    GPL task manager replacement for Windows

    Daphne is a system tray application for process killing, controlling and debugging. It's development started back in 2005. It was first thought to kill a set of windows process at once. With the time it became a GPL task manager replacement for Windows. You can kill a process by dragging the mouse over the windows, by right-clicking the process in the main process list, or by typing its name with the "Kill all by name" command. You can set a any window to be always on top, to be transparent, to be enable, et cetera. Although Daphne was born just to kill windows process. You can think of Daphne as a task manager replacement. The main window displays a list of currently running process with detailed information about: CPU usage, Process ID, Process name, Full path (and arguments), Priority, Class (Process / Service), Current memory usage, Peek memory usage, Current swap usage, Peek swap usage and Number of threads.
    Downloads: 3 This Week
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  • 14
    EduMIPS64
    EduMIPS64 (aka edumips) is a cross-platform MIPS 64 ISA simulator. It can be used to run and debug MIPS programs that are written using the MIPS64 instruction set. It supports visual debugging and lets you see what instructions do in the pipeline.
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    Downloads: 2 This Week
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  • 15
    Yed is a C software library made of modules (objects) instanceable according to the main paradigms of OOP: incapsulation and data hiding. The library contains objects that handle XML files and buffers, FTP connections, file system operations etc.
    Downloads: 2 This Week
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  • 16
    OpenDiscreteDynamicProgrammingTemplate : founds optimal constrainted parameters of a discrete controls with second order optimization template replacing Hessian with directional derivatives and backpropagation for digital filter(as neural network)
    Downloads: 1 This Week
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  • 17
    Setup bootstrapper for Windows. You can use dotNetInstaller to create a setup bootstrapper to install the correct prerequisites software components for your application setup.
    Downloads: 1 This Week
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  • 18
    An OpenSource software (ApaciLinux) that allows to run a PHP Server to control a device connected through the serial port
    Downloads: 0 This Week
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  • 19
    Asterope

    Asterope

    Cross-platform open source software for astrophotography

    Cross-platform open source software for astrophotography based on Qt and libgphoto2. Main target is ARM systems like Raspberry and OrangePi.
    Downloads: 0 This Week
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  • 20
    Asynchronous I/O server
    Downloads: 0 This Week
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  • 21
    To provide a bunch of useful applications for daily use. The first of those applications was donated by NIH\'s DECA, it\'s called REX and is a Request/Bug tracker. All applications will be Struts 1.1 and greater based.
    Downloads: 0 This Week
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  • 22
    A delphi component to add to your application the function of burning cd / dvd without any other dll or software
    Downloads: 0 This Week
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  • 23
    CyBerFuN xBTiT
    CyBerFuN xBTiT by cybernet2u / I only install hacks and maintain them / all the credits for the core source goes to : http://www.btiteam.org new files here ->https://github.com/cybyd/cybyd
    Downloads: 0 This Week
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  • 24
    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: 0 This Week
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  • 25
    GandiCloud
    An open source client to manage cloud hosting resources at Gandi.Net via the public API. Written in C++ with Qt4. Multi-language and cross-platform. Runs on Linux, MacOS X, and Windows.
    Downloads: 0 This Week
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