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

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    Build gen AI apps with an all-in-one modern database: MongoDB Atlas

    MongoDB Atlas provides built-in vector search and a flexible document model so developers can build, scale, and run gen AI apps without stitching together multiple databases. From LLM integration to semantic search, Atlas simplifies your AI architecture—and it’s free to get started.
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  • Find Hidden Risks in Windows Task Scheduler Icon
    Find Hidden Risks in Windows Task Scheduler

    Free diagnostic script reveals configuration issues, error patterns, and security risks. Instant HTML report.

    Windows Task Scheduler might be hiding critical failures. Download the free JAMS diagnostic tool to uncover problems before they impact production—get a color-coded risk report with clear remediation steps in minutes.
    Download Free Tool
  • 1
    Asphyre

    Asphyre

    Asphyre is a cross-platform framework for Delphi and FreePascal.

    Asphyre, also known as Platform eXtended Library, is a cross-platform framework for developing video games and scientific applications in Delphi, and FreePascal/Lazarus. The framework provides facilities for real-time rendering of graphics (using DirectX, OpenGL or Software Renderer), text output, mathematics (including vectors and matrices) and networking communication, among other features. It also supports singleboard devices such as Raspberry PI, Intel Galileo, BeagleBone Black and others with features like GPIO, SPI, I2C and so on, along with external displays, sensors and other peripheral devices.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 2
    MeanOS

    MeanOS

    The smallest and the most powerful operating system.

    The first decentralized, artificially intelligent, MEAN.js stack, operating system. Mean OS is the only operating system hosted anonymous using a P2P network and a suite of non-standard in-browser delivery mechanisms. Mean OS is specifically designed to support both Brave and Tor but is compatible with all other major browsers. Mean OS is Proud to be a BRAVE and TOR supporter, be free!!
    Downloads: 5 This Week
    Last Update:
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  • 3

    Network Enumeration Tool

    Network Enumeration Tool for Host Exploration and Recon

    N-ETHER (Network Enumeration Tool for Host Exploration and Reconnaissance) is a robust and highly automated Python script designed to streamline the critical initial phases of network security auditing and penetration testing. It’s core purpose is to perform fast, comprehensive, and consistent host and port discovery across single targets or large lists of IP addresses. N-ETHER functions as an intelligent, opinionated wrapper around the powerful nmap tool, bundling best-practice scanning techniques—including service versioning, NSE scripting, and intelligent port selection—into a single, easy-to-use utility. This significantly reduces auditor workload and potential for human error compared to manually executing multiple complex nmap commands. Read the README!!!
    Downloads: 3 This Week
    Last Update:
    See Project
  • 4
    Vodogray Linux
    Vodogray is a fast operating system oriented at creative people, it includes more software for creators and their tasks Source files available on GitHub https://github.com/VodograyLinux I publish news about the distribution and its development in the Telegram channel https://t.me/VodograyNews
    Downloads: 3 This Week
    Last Update:
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  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
    Try it Free
  • 5

    JRF

    Java Remote File - RemoteInputStream and RemoteOutputStream.

    JRF is a client/server application that allows to extend local storage to other computers running the JRF Server. It has been designed for ultra-simplicity, **not for security!** It does not request for authentication when accessing files on a remote server, nor does it prevent access to files or directories. It has been designed for already-secured networks (e.g. LANs or inside VPNs), where file-sharing setup is tedious (or impossible). Basic access configuration/restriction should be performed on the OS, by changing rights of the user running the JRF Server. It is like an insecure FTP-like file sharing runnning on a single TCP port. Its Java nature gives Java programmers access to remote files as remote `InputStream` and `OutputStream`, with the added value of optionally **compressing data exchange** to ease up network usage.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 6
    Control logic

    Control logic

    Realtime PC-based control and simulator of control systems

    Control logic Java package is a set of Java classes aimed at: - Implementation of a real-time PC-based control - Simulation of control systems Setting up a control system involves working with so-called triggers. See project Wiki for detailed information and examples.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    F-Talk P2P Encrypted Secure Voip

    F-Talk P2P Encrypted Secure Voip

    F-Talk cross-platform p2p encrypted secure voip software

    This project connect to two peers directly ( using without any central server, stun server ) together with 128bit encrypted secure voip communication. http://ftalk.armanasci.com/guide Spefications * Peer to peer direct connection without using any central dedicated server. ( First basic part of the security ) * 128bit AES Symmetric end-to-end encryption PCM datas. ( Second basic part of the security ) * 64bit Base64 Encoding transferred server side info. * Ipv4 and Ipv6 Supoort. * Full-Dublex Communication. * Full Supports Windows,Linux,Mac and Android platforms. * Complately open source project. http://ftalk.armanasci.com/ http://blog.armanasci.com/ http://blog.armanasci.com/contact-me/
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    Downloads: 0 This Week
    Last Update:
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  • 9
    MMORpgmaker
    A MMORPG Game Engine Writted in Monogame GL full C# Very easy to make a game. With simple Level Editor. Whit cross-plattform Server on .NET Core Tecnology Build your Cross-Platform Game whitout programming! Aviable for Xbox one, PS4, Android, iOS and more platform. Try Live Demo: http://www.makingitalia.net/MireWEB/ Project are migrated on Mire Engine. See Updated at: http://www.makingitalia.net/mire/
    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.
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  • 10

    OMPISpecto

    OpenMPI tool for monitoring openMPI applications

    Open MPI application monitoring (and steering) from a web-interface and a mobile device.
    Downloads: 0 This Week
    Last Update:
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  • 11
    OOBD supports a self-programable Tool for Vehicle Onboard Diagnostics (OBD) for various platforms like the Windows-Desktop, mobile Phones and Smartphones Please note that we are actual moving this project over to oobd.googlecode.com. The software source code repository is already moved, other areas will follow.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    OWLOS

    OWLOS

    Open source network operating system for managing IoT devices.

    OWLOS Open source network operating system for managing IoT devices: - does't require internet access or additional servers - ready to connect sensors, actuators, LCD, DHT, Stepper and other devices - does't require programming skills - built-in user interface - use web browser to access and manage your OWLOS nodes - built-in RESTful server - built-in MQTT client - at the same time WiFi access point and station, in any combination: - can be used autonomously - can work on a local network can work via the Internet can integrate with other nodes running under OWLOS - organizing an internal network. without using a servers available in source code
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    WebKeyOS NAS

    WebKeyOS NAS

    Sistema Operativo NAS | NAS Operating System

    Downloads: 0 This Week
    Last Update:
    See Project
  • 14

    aexplrorer

    Simple file manager to navigate files on your android device from PC

    The file manager, which allows access to the Android file system . Also allows you to get a list of installed applications. Simple and open source replacement for Total Commander + ADB Plugin. This project is a beta, some features will be added later.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    OmniEdge

    OmniEdge

    Bringing intranet on the internet with Zero-Config Mesh VPNS.

    OmniEdge is an Open source p2p layer 2 , zero-config mesh VPN infrastructure, a traditional VPN, AWS VPC, Ngrok, DDNS alternative. No central server, easy to scale with less maintenance. What happens in intranet, stays in in intranet.
    Downloads: 10 This Week
    Last Update:
    See Project
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