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.

  • 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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  • The All-in-One Commerce Platform for Businesses - Shopify Icon
    The All-in-One Commerce Platform for Businesses - Shopify

    Shopify offers plans for anyone that wants to sell products online and build an ecommerce store, small to mid-sized businesses as well as enterprise

    Shopify is a leading all-in-one commerce platform that enables businesses to start, build, and grow their online and physical stores. It offers tools to create customized websites, manage inventory, process payments, and sell across multiple channels including online, in-person, wholesale, and global markets. The platform includes integrated marketing tools, analytics, and customer engagement features to help merchants reach and retain customers. Shopify supports thousands of third-party apps and offers developer-friendly APIs for custom solutions. With world-class checkout technology, Shopify powers over 150 million high-intent shoppers worldwide. Its reliable, scalable infrastructure ensures fast performance and seamless operations at any business size.
    Learn More
  • 1
    D-Fend Reloaded

    D-Fend Reloaded

    A graphical environment for DOSBox

    D-Fend Reloaded is a graphical environment for DOSBox. D-Fend Reloaded is a successor of the discontinued D-Fend. Both environments look alike and D-Fend Reloaded contains all features of D-Fend. Even the D-Fend config files can be used.
    Leader badge
    Downloads: 842 This Week
    Last Update:
    See Project
  • 2
    Denise

    Denise

    C64/Amiga emulator with shader and runAhead

    Denise is a cycle accurate and platform independant C64 / Amiga 500/1000 emulator. My motivation for this project is understanding how it works and write clean and easy readable code. RetroArch SLANG shaders are supported by Denise. Features already known from the C64 emulation, such as runAhead, savestates, drive sounds, PAL encoding, dynamic rate control, G-Sync/FreeSync, Warp, just in time polling are also available for the Amiga. Denise supports SuperCPU, Final Chesscard, REU, GeoRam, EasyFlash, EasyFlash³, Gmod2, Retro Replay, Action Replay, Final Cartridge, Light Guns/Pens, GunStick, Mouse 1351, Mouse Neos, Paddles, fast loaders such as ProfDOS, PrologicDOS, DolphinDOS, ProSpeed 1571, Turbo Trans, 1571, 1581, drag'n'drop and command line support. GIT repo: https://bitbucket.org/piciji/denise/src/master
    Leader badge
    Downloads: 784 This Week
    Last Update:
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  • 3
    99 Nights Script | Auto Farm, Kill Aura

    99 Nights Script | Auto Farm, Kill Aura

    99 Nights Script: Kill Aura, Auto Combat, Auto Craft, & more No Key

    99 Nights In The Forest Roblox Script Free Download No Key / FREE DIAMONDS in 99 NIGHTS IN THE FOREST 👋 Welcome Welcome to the SourceForge repository! Here you'll find a Lua cheat script for the Roblox game "99 Nights in the Forest." 99 Nights Scripts with Kill Aura No key. Auto farm in 99 nights roblox game Unlock powerful features in 99 Nights in the Forest with this keyless Roblox script – no key system, no delays! Includes Bring Item, ESP (player/item tracking), and Teleport for fast exploration and survival. Boost your gameplay with this free, undetected, and easy-to-use script. ⚠️ Is It Safe to Use Scripts in 99 Nights in the Forest? Using scripts in Roblox, including in 99 Nights in the Forest, is considered a form of cheating and may violate the Roblox Terms of Service. This scripts can help you resolve your problems in 99 nights in woods roblox game
    Downloads: 1,423 This Week
    Last Update:
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  • 4
    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.
    Leader badge
    Downloads: 221 This Week
    Last Update:
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  • Level Up Your Cyber Defense with External Threat Management Icon
    Level Up Your Cyber Defense with External Threat Management

    See every risk before it hits. From exposed data to dark web chatter. All in one unified view.

    Move beyond alerts. Gain full visibility, context, and control over your external attack surface to stay ahead of every threat.
    Try for Free
  • 5
    DS3Windows

    DS3Windows

    DS3Windows allows you to use a DualShock 3 Controller on your PC

    DS3Window is an open-source program that will allow someone to get the experience of using a Playstation 3 DualShock Controller on a PC by emulating a Xbox 360 Controller. ⚠️Sometimes Windows will show unknown application error, click "More info" then click "Run anyway".
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    Downloads: 433 This Week
    Last Update:
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  • 6
    Yabause
    Yabause is a portable Sega Saturn emulator.
    Downloads: 54 This Week
    Last Update:
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  • 7
    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: 96 This Week
    Last Update:
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  • 8
    jdMinecraftLauncher

    jdMinecraftLauncher

    Unofficial classic styled Minecraft Launcher

    jdMinecraftLauncher is a Minecraft launcher which Look and Feel is close to the the good old official Launcher. You need a Microsoft Account which owns Minecraft to use this Launcher This Launcher is completly fanmade and not supported by Mojang/Microsoft
    Leader badge
    Downloads: 172 This Week
    Last Update:
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  • 9
    Roblox Auto Clicker & Macro

    Roblox Auto Clicker & Macro

    Roblox but have auto clicker. Don't waste your time for click.

    Free auto clicker for Roblox. You don't need to click manually, let us do it for you. This program made by UfukGames and supporting 3 languages (Türkçe,Deutsch, English). You can use this program as an macro also. This program scanned before published.
    Leader badge
    Downloads: 60 This Week
    Last Update:
    See Project
  • Simple, Secure Domain Registration Icon
    Simple, Secure Domain Registration

    Get your domain at wholesale price. Cloudflare offers simple, secure registration with no markups, plus free DNS, CDN, and SSL integration.

    Register or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.
    Sign up for free
  • 10
    Roblox Auto Clicker & Anti-AFK

    Roblox Auto Clicker & Anti-AFK

    Don't get kick from Roblox for being AFK.Don't click use auto clicker.

    With Roblox Plus, you won't get kicked from Roblox because of being AFK. You don't have to click by yourself, let auto clicker do it for you. You can open and close the program at the same time you play Roblox. Program made by: HorizonPublish
    Downloads: 31 This Week
    Last Update:
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  • 11
    PocketInsanity is a project to provide ports of existing Open Source projects to the PocketPC ARM Platform. Examples are FreeSCI (Sierra Games VM), UAE (Amiga Emulator), Wolfenstein 3D and XRick. More are following as the project advances.
    Downloads: 17 This Week
    Last Update:
    See Project
  • 12
    Software that will keep track of your favorite internet game servers such as Quake 3 &4, Enemy Territory, Call of Duty, Counter Strike & Warsow etc. Supports filtering and country locations...
    Downloads: 9 This Week
    Last Update:
    See Project
  • 13
    Roblox Auto Clicker

    Roblox Auto Clicker

    Free Roblox auto clicker. No need to optimize. Don't waste time.

    With this application you won't waste your time for clicking. It is free and trusted forever. This application doesn't need to optimize like other autoclicker applications. You can open and close it at the same time while you were playing Roblox. Start earning your free robux now. This application made by HorizonPublish
    Downloads: 5 This Week
    Last Update:
    See Project
  • 14

    srcpd: modular SRCP server

    SRCP system daemon

    The srcpd is a gateway between any kind of model railway systems and user interface programs that support the Simple Railroad Command Protocol SRCP.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 15
    TwoMbit

    TwoMbit

    master system, gamegear, sg-1000 emulation

    TwoMbit is a cycle/bus accurate emulator for Sega's 8-bit game consoles (Master System, Gamegear, SG-1000)
    Leader badge
    Downloads: 3 This Week
    Last Update:
    See Project
  • 16
    QMC2 is a Qt based multi-platform GUI front end for MAME NOTE: A new version is hosted and developed at https://github.com/qmc2/qmc2-mame-fe
    Downloads: 6 This Week
    Last Update:
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  • 17
    GTA V PVP MACRO

    GTA V PVP MACRO

    You will be invincible in PVPs. Free GTA V PVP macro.

    If you want to be invincible in GTA PVPs this program is for you. Free forever, no need to optimize. Just open the program click 1 from numpad and start beating your enemies. This program made by: HorizonPublish
    Downloads: 2 This Week
    Last Update:
    See Project
  • 18
    dbfrontend is a windows tool to make the approach to the excellent DOSBox project at dosbox.sourceforge.net more comfortable and to manage DOSBox projects. (ie play the old DOS games)
    Downloads: 4 This Week
    Last Update:
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  • 19
    Game Launcher

    Game Launcher

    A Windows tray application that launches your games, quickly

    Game Launcher is a simple application that lives in your notification area/system tray. It maintains a list of games you choose to have on it, and allows you to launch those games from anywhere by right-clicking the icon, or pressing Windows+G on your keyboard. GL supports various methods of adding games, including: browsing for the shortcut, drag'n'drop, shell integration, and direct input of a Steam App ID. Support and bug requests for GL is handled by the GitHub project's issue tracker, so if you have any bugs, feature requests or other suggestions, please post them there!
    Downloads: 2 This Week
    Last Update:
    See Project
  • 20
    Helldivers 2 Binder Free v1.1.0

    Helldivers 2 Binder Free v1.1.0

    A macro runner for HELLDIVERS™ 2

    Helldivers 2 Binder allows you to select stratagems and assign hotkeys to each. In the game, you can use these hotkeys to instantly activate your stratagems without using the arrow keys.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 21
    SaveGame Profiler
    Easily manage multiple savegame profiles for games allowing multiple users to play games on the same system without overwriting eachothers' saves.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 22
    gnu RolePlayGame Maker
    Ever wanted to create your own Role-Play-Games? With this easy-to-use application you can create your own RPGs without having deeper knowledge in any Programming-Language. For the downloads and more info please visit the project's website below.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    A web-based LanParty administration tool - lanparty internet/intranetsystem <br> #[Features] Online-registration, Seatplan, Tournament-management, Catering system, Board, Messenger, Poll, News, FAQ, Pic-gallery, FTP-webinterface, Troubletickets and much
    Downloads: 1 This Week
    Last Update:
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  • 24
    A tool which allows you to download all erotic images and videos hosted on popular image hosting sites tagged with a given tag without clicking you through the web interface. ,,java bayimg yourtag'' is enought.
    Downloads: 1 This Week
    Last Update:
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  • 25
    Downloads: 1 This Week
    Last Update:
    See Project
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