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

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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: 39,347 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: 10,010 This Week
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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: 230 This Week
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  • 4
    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: 130 This Week
    Last Update:
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  • 5
    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: 74 This Week
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  • 6
    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: 37 This Week
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  • 7
    JPPF

    JPPF

    The open source grid computing solution

    JPPF makes it easy to parallelize computationally intensive tasks and execute them on a Grid.
    Downloads: 27 This Week
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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: 21 This Week
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  • 9

    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: 12 This Week
    Last Update:
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  • 10
    Video Memory stress Test
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    Downloads: 36 This Week
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  • 11
    BEYE (Binary EYE) is a free, portable, advanced file viewer with built-in editor for binary, hexadecimal and disassembler modes. It contains a highlight AVR/Java/i86-AMD64/ARM-XScale/PPC-64 and other disassembler, full preview of MZ,NE,PE,ELF and other.
    Downloads: 41 This Week
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  • 12
    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: 5 This Week
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  • 13
    DotNetWikiBot Framework

    DotNetWikiBot Framework

    Make robots for MediaWiki-powered sites!

    The DotNetWikiBot Framework was developed so that it can offer a helping hand with many complicated and routine tasks of wiki site development and maintenance. DotNetWikiBot Framework is a cross-platform full-featured client API, that allows you to build programs and web robots easily to manage information on MediaWiki-powered sites. DotNetWikiBot Framework can also be used for learning C# and .NET.
    Downloads: 5 This Week
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  • 14
    DirectX Remover

    DirectX Remover

    DirectX 1.x - 8.x uninstaller/cleaner

    Lets you uninstall DirectX 1.x - 8.x including bogus or beta installations from your computer and than re-install a current or an earlier versions. Use with caution!
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    Downloads: 22 This Week
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  • 15
    CopyFile is flexible and persistent utility for searching and copying (large) files over Local Area Network (LAN). Supports for MultiThreading /pause/resume/integrity check/subdir recurse/queue(with autosave)/network listing with autosave and lots of oth
    Downloads: 3 This Week
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  • 16

    Dynamic Arrays and Hashes (Delphi, C++)

    Very fast classes for working with Dynamic Arrays in Delphi and C++

    (New version 1.04 is released) Dynamic Arrays is a set of useful very fast classes for data manipulating in memory. Flexible memory control, functionality that standard containers do not have, fast operations (assembler implementation for x86 and x64 platforms). Available for Delphi all latest versions and for C++. Powerful Hash and Double Hash classes to work with pairs of values (key and value) and with values that have two keys (key1, key2, value). Give it a try and let me know how it works.
    Downloads: 5 This Week
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  • 17
    scmRTOS is tiny Real-Time Preemptive Operating System intended for use with Single-Chip Microcontrollers. scmRTOS is capable to run on small uCs with as little amount of RAM as 512 bytes. The RTOS is written on C++ and supports various platforms.
    Downloads: 1 This Week
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  • 18

    Ubuntu Server 16.10 x86 for developers

    Ubuntu Server 16.10 LTS for developers Image for virtual machines

    Ubuntu Server 16.10 LTS 32bit. Image for virtual machines (file format -VHD). Image should run in VirtualBox or VMware. The image was made especially for web developers. Fast start for any web project, and different frameworks or CMS. It was installed include: - xorg and Window Maker; - PHP7 and libraries; - PhpMyAdmin and MySQL 5.7 (server and client); - Nginx (no Apache); - Composer (global); - Exim4; - Mozilla Firefox; - xterm; - OpenSSH Server. Login: user Password: user
    Downloads: 2 This Week
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  • 19
    eS

    eS

    Cross-platform IDE for developing embedded solutions and desktops

    Solution Editor (eS) is a free, lightweight, cross-platform, development environment (IDE) for Assembler, C or C++ programming, designed to interface with various compilers and debuggers (GDB,CDB). The environment allows you to develop and debug code for MIPS, ARM, AVR and any other processors for embedded solutions and desktop applications. It contains a minimum of settings for easy and convenient programming. The hardware debugging process is possible if you have the hardware and / or software for this purpose. (For example, the J-Link debugger is sufficient for debugging on an ARM processor) An example of a project of a console utility created in this programming environment here: https://intel-hex-file-processing.sourceforge.io/ Additional information in Russian can be found here https://sites.google.com/view/esrus/
    Downloads: 3 This Week
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  • 20
    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: 2 This Week
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  • 21
    Converter from DOS-exe (MZ format) files to ROM-able (*.rom format), suitable for loading to absolute addresses. Can be used for create BIOS extenders for I/O card and another soft for x86-based embedded systems for big length files (more, than 64K).
    Downloads: 2 This Week
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  • 22
    PHP installer, plus GTK installer, plus PHP-GTK installer : all in one - although each one may be installed separately - for MS-Windows users.
    Downloads: 1 This Week
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  • 23
    Provide secure and stable OS, based on highly modified Linux Kernel, own package system, like "BSD Ports". Compatible with x86, Power PC. Easy to use of any level users. Complete Documentantion in many languages. 99% compatible with Windows.
    Downloads: 1 This Week
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  • 24
    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: 1 This Week
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  • 25
    GSGui is a graphical wrapper for Ghostscript for converting PDF files to the old PDF format (ver 1.4) for Amazon Kindle 4 ------------->>> Java 8 and Ghostscript must be installed on your system before use
    Downloads: 1 This Week
    Last Update:
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