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
    winPenPack

    winPenPack

    The portable software collection

    winPenPack is a project that aims at collecting the most frequently used and most popular open source applications made portable, so that they can be executed without installation from any USB Flash Drive or Hard Disk. The winPenPack suites offer a wide range of portable applications like office tools, internet tools, multimedia tools, development tools, security applications and other frequently used utilities. Everything you need, completely free, open source and portable!
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    Downloads: 617 This Week
    Last Update:
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  • 2
    cdrtfe

    cdrtfe

    Burn optical discs in various formats

    cdrtfe is a CD/DVD/BD burning application for Microsoft Windows. You can burn data discs, Audio CDs, XCDs, (S)VCDs and DVD-Video discs. It supports creation and writing of ISO images and bootable discs. cdrtfe has a multi-language interface and is also available as portable version.
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    Downloads: 403 This Week
    Last Update:
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  • 3
    Data Crow

    Data Crow

    The ultimate cataloguer

    Data Crow allows you to use the standard movie & video (divx, xvid, DVD, Blu-ray, etc), book (and eBooks), images, board games, comic books, games & software, music (mp3 and other music files) cataloguing modules. Besides these modules, which you can change to fit your requirements, you can create new modules (want to catalogue your stamps, equipment, or anything else?). The GUI is skinnable. Reporting (using JasperReports and their community edition JasperSoft Developer Studio ), loan administration, item importing & exporting, backup & restore and many other optional features are waiting for you.
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    Downloads: 247 This Week
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  • 4
    Katalog

    Katalog

    Catalog and Search files from permanent or removable drives

    Katalog is a desktop application to manage catalogs of disks and files: - Create catalogs from different sources or devices, - Search files even when the devices are disconnected, and find duplicates or differences - Organize your Collection of catalogs, Storage devices, and Virtual storage devices and get Statistics, - Backup or Archive files between catalogs - Collection data is stored in csv files or an SQLite base - Available in multiple languages - OpenSource and cross-platform (Linux, Windows, macOS). First use / tips - Simply start with the Create screen. Create your first catalog and experiment! - All data/catalog files are stored in the Settings/Collection folder. Documentation/Wiki: https://stephanecouturier.github.io/Katalog/ Follow Katalog on Facebook: https://www.facebook.com/Katalog-107117844916308 Follow active development: https://github.com/users/StephaneCouturier/projects/7
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    Downloads: 444 This Week
    Last Update:
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  • 5
    Dayon! (active)

    Dayon! (active)

    Remote assistance made easy!

    Dayon! is an open source remote desktop and assistance solution. It is easy to use, secure, requires no registration and is free for personal and commercial use!
    Downloads: 212 This Week
    Last Update:
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  • 6
    PCSX2

    PCSX2

    PlayStation 2 emulator for Windows and Linux

    PCSX2 is a PlayStation 2 emulator for Windows and Linux, started by the same team that brought you PCSX (a Sony PlayStation 1 emulator). Currently, it can emulate thousands of games at full speed
    Downloads: 74 This Week
    Last Update:
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  • 7
    Xiaomi PC Tools

    Xiaomi PC Tools

    Xiaomi PC Tools

    APPLICATION SUPPORT HAS BEEN TERMINATED. YOU CAN CONTINUE TO USE IT BUT FEATURES MAY NOT WORK PROPERLY OR MAY BE OUTDATED. UYGULAMA DESTEĞİ SONLANDIRILDI KULLANMAYA DEVAM EDEBİLİRSİNİZ ANCAK ÖZELLİKLER DOĞRU ÇALIŞMAYABİLİR VEYA GÜNCELLİĞİNİ KAYBETMİŞ OLABİLİR. Xiaomi PC Tools has been developed for Xiaomi users. The aim of the program is to consolidate and facilitate many processes under a single program. **INFORMATION** Don’t be afraid if your browser or Windows complains about the file being “unsafe”, you can trust us. NOTE: Do not forget to run the program as an administrator. Report in-app errors/bugs Send mail>> xfdevapps@gmail.com SYSTEM REQUIREMENTS CPU: 1GHZ any CPU. RAM:512MB or higher. OS: Windows 7 or newer operating system. (32Bit or 64Bit) Connection: 512 KBPS or faster Internet connection. Java JRE Runtime
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    Downloads: 61 This Week
    Last Update:
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  • 8
    Qoobar
    Qoobar - Audio Tagger for Classical Music. It can - Edit ID3v2.4, Xiph.org, APE, ASF tags. - Rename files and fill in tags. - Work with groups of files. - Insert chars with diacritics.
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    Downloads: 25 This Week
    Last Update:
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  • 9
    FileSearch
    FileSearch is a multi-threaded documents searcher. No indexes need to be updated ; no background service is required. The more you have drives the more search speed is increased thanks to its multi-threading technic.
    Downloads: 9 This Week
    Last Update:
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  • 10
    Multi-platform Delphi based application to provide a Nintendo Wii-like front-end to the PC. It lets the users launch multimedia files and external applications. Particularly thought as Home-Theatre PC (HTPC) front-end.
    Downloads: 6 This Week
    Last Update:
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  • 11
    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
    Last Update:
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  • 12
    CdFly is a crossplatform CD collection manager written in c++ using the brand-new qt4 library by trolltech and storing its data in a sqlite3 database. Supported platforms are Linux and Windows. Mac OS X should work too but is not tested.
    Downloads: 1 This Week
    Last Update:
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  • 13
    A delphi component to add to your application the function of burning cd / dvd without any other dll or software
    Downloads: 0 This Week
    Last Update:
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  • 14
    This is a JavaOS software able to listen to or watch to VoIP sniffed communication. This software read libpcap file and it is able to discover VoIP-SIP session.
    Downloads: 0 This Week
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  • 15
    JCGrid is an easy-to-use tools for real-world grid-computing. It requires only to install Java Runtime and you can easy split your cpu-intensive task among several Workstations/PC/Mac/etc. It includes support for POVRay and MandelGrid as usage examples.
    Downloads: 0 This Week
    Last Update:
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  • 16
    LinPHA is an easy to use, multilingual, flexible photo/image archive/album/gallery written in PHP. It uses a SQL database to store information about your pictures. It comes with a HTML based installer, so you don't need experience in setting up SQL
    Downloads: 0 This Week
    Last Update:
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  • 17
    A slide show for JPG, GIF, BMP, PNG, TIF, & WMF files; maximizes images without distortion. Folders can be selected at run time, or in advance with arguments or a .picshow file. File name, date of picture, and comment can optionally be shown with image.
    Downloads: 0 This Week
    Last Update:
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  • 18
    Simplify is aimed to raise images compressibility by using a reversible blurring algorithm.
    Downloads: 0 This Week
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  • 19
    An automatic download manager which retrieves videos recorded on vcast.it PVR service. It can be extremely useful if periodically scheduled to automatically download Vcast videos. Supports download resuming too.
    Downloads: 0 This Week
    Last Update:
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