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.

  • 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.
    Start Free
  • 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.
    Start Free
  • 1
    Virtual T
    Virtual T is a TRS-80 Model 100/102/200 emulator that runs on Windows, Linux, and Macintosh. The goal of Virtual T is to provide 100% hardware emulation so any existing programs will run. It also adds powerful development and debugging tools.
    Leader badge
    Downloads: 24 This Week
    Last Update:
    See Project
  • 2
    DSpace

    DSpace

    Open Source "turn-key" institutional repository application

    Open Source Digital Asset Management system that enables services for access, provision, stewardship and re-use of digital assets with a focus on educational and research materials For Support, please see: https://wiki.lyrasis.org/display/DSPACE/Support RELEASES: The most recent releases are now distributed via GitHub: https://github.com/DSpace/DSpace/releases MAILING LISTS: Mailing lists have all been moved to Google Groups: https://wiki.lyrasis.org/display/DSPACE/Mailing+Lists
    Downloads: 4 This Week
    Last Update:
    See Project
  • 3
    Atomatrix is a multithreaded execution system of atomic matrices with a dynamic compiler and a network eviron. It is the next generation object-orientated environment. XML, MUD-OO CLI, GnucDNA support, windows and many subprojects are built-in.
    Downloads: 12 This Week
    Last Update:
    See Project
  • 4
    Tiny8051
    Tiny8051 is small 8051 microcontroller simulator written in C#. Project was created for educational purposes, to show how µP works by using clean visual interface and debugging. Note: communication over serial port was not implemented, because there was no demand for it.
    Downloads: 6 This Week
    Last Update:
    See Project
  • Try Google Cloud Risk-Free With $300 in Credit Icon
    Try Google Cloud Risk-Free With $300 in Credit

    No hidden charges. No surprise bills. Cancel anytime.

    Use your credit across every product. Compute, storage, AI, analytics. When it runs out, 20+ products stay free. You only pay when you choose to.
    Start Free
  • 5
    GGI stands for "General Graphics Interface", and it is a project that aims to develop a reliable, stable and fast graphics system that works everywhere. We want to allow any program using GGI to run on any platform requiring at most a recompile.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 6
    Didaskon will deliver a framework for assembling a curriculum from existing learning objects provided by e-Learning services. The selection of learning objects will be based on the semantically annotated specification of the user's current skills.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    HALT is a developer friendly programming and simulation environment for the Motorola 680x0 family of processors. Targeted at academia, it is centered around ease of use and utility.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    The project is to develop an application for the general management of virtual networks with Dynamips, VirtualBox, PixEmulator, UML, Zebra, etc.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    An educational 3D game, developed at CERN for its 50th anniversary exhibition. Basic GRID concepts such as Resource Broker and Replica Manager are visualized. Written from scratch with minimal dependencies (SDL, openGL), runs both on Windows and Linux.
    Downloads: 0 This Week
    Last Update:
    See Project
  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
    Try Retool free
  • 10
    arclog archives the log files monthly. It supports Apache access log, Syslog, NTP, Apache 1 SSL engine log, modified ISO date/time log file formats, and Apache-like logs like CUPS, ProFTPD, Pure-FTPd… etc., and gzip and bzip2 compression methods.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Common Hardware Recovery Solutions by Ukrainian-Russian network
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    A java based network and firewall simulator that allows users to set and test the effectiveness of firewall rules using either a command line interface or graphical user interface.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • Next
MongoDB Logo MongoDB