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.

  • 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
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 1
    Ufficio Zero Linux OS

    Ufficio Zero Linux OS

    Linux Desktop OS for professionals

    Ufficio Zero Linux OS is a desktop operating system offered in many versions based on PCLinuxOS, Linux Mint and Devuan. We also have created Duplica, a Bare Metal Restore Solution. This distro has many packages for professional use. The project is managed by the Italian company SIITE SRLS and promoted by the Italian Association Boost Media APS. Ufficio Zero Linux OS is trademarked through the Linux Mark Institute. All rights reserved. Linux® is the registered trademark of Linus Torvalds in the U.S. and other countries. website https://ufficiozero.org forum https://forum.ufficiozero.org wiki https://wiki.ufficiozero.org Follow us on our socials https://l.devol.it/@ufficiozero Boost Media APS https://boostmedia.it
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    Downloads: 53,764 This Week
    Last Update:
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  • 2
    ReactOS

    ReactOS

    An operating system based on the best Windows NT design principles

    ReactOS is an open source effort to develop a quality operating system that is compatible with applications and drivers written for the Microsoft Windows NT family of operating systems (NT4, 2000, XP, 2003).
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    Downloads: 5,392 This Week
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  • 3
    Zero Install
    Zero Install is a decentralised cross-distribution software installation system. Create one package that works everywhere! With dependency handling and automatic updates, full support for shared libraries, and integration with native package managers
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    Downloads: 3,601 This Week
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  • 4
    blissos-dev

    blissos-dev

    Android for your PC, but more Blissful

    Bliss OS (x86) Android for your PC An Open Source OS, based on Android, that incorporates many optimizations, features, and expanded device support. And it is available for just about any Chromebook, Windows/Linux PC or tablet released in the last 4 years Our support options use Telegram chats. Bliss OS (x86) Support chat: https://t.me/blissx86 Bliss ROM/OS Build Support chat: https://t.me/Team_Bliss_Build_Support Android-Generic Project development chat: https://t.me/androidgenericpc
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    Downloads: 3,802 This Week
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  • Atera - The depth of a full-stack IT platform, with the power of AI. Icon
    Atera - The depth of a full-stack IT platform, with the power of AI.

    Atera introduces your autonomous AI agent - Ensure operational efficiency at any scale with 24/7 autonomous IT support.

    Atera prioritizes security and compliance through robust protections that align with industry standards. Our AI-driven features were built on responsible AI principles and empower IT teams to work efficiently while maintaining trust and compliance.
    Learn More
  • 5
    Radeon-ID

    Radeon-ID

    Official Mirror for AMD Domestic Community Drivers Indonesia

    AMD Domestic Community Driver with Multi-Kernel Radeon Driver Release Experience enhanced performance and flexibility with our multi-kernel Radeon driver, tailored for the AMD community. 📢 Need help or have questions? Join our 24/7 Discord support channel for real-time assistance and discussions: https://discord.gg/rdnid
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    Downloads: 6,486 This Week
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  • 6
    This project is a random collection of Linux kernel-related projects and source code.
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    Downloads: 801 This Week
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  • 7
    VBA-M

    VBA-M

    A merge of the original Visual Boy Advance forks

    The continuing development of the legendary VBA gameboy advance emulator.
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    Downloads: 198 This Week
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  • 8
    AROS Research Operating System
    The AROS Research Operating System is an effort to implement an Open Source and portable operating system that is compatible with AmigaOS(TM). Originally, it was meant as a direct reimplementation, but already has features not existing in AmigaOS.
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    Downloads: 220 This Week
    Last Update:
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  • 9
    The USB/IP Project
    The USB/IP Project aims to develop a general USB device sharing system over IP network. To share USB devices between computers with their full functionality, USB/IP encapsulates USB I/O requests into IP packets and transmits them between computers.
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    Downloads: 173 This Week
    Last Update:
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  • Comet Backup - Fast, Secure Backup Software for MSPs Icon
    Comet Backup - Fast, Secure Backup Software for MSPs

    Fast, Secure Backup Software for Businesses and IT Providers

    Comet is a flexible backup platform, giving you total control over your backup environment and storage destinations.
    Learn More
  • 10
    Allows editing of any size file in hexadecimal, decimal and ASCII. A great tool that allows you to edit and analyze the contents for either the data or resource fork of any type of file. 68K, PPC and Carbon run on MacOS 7-9 and X.
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    Downloads: 207 This Week
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  • 11
    PearPC - PowerPC Emulator
    PearPC is an architecture independent PowerPC platform emulator capable of running most PowerPC operating systems. It includes a JITC for x86-Processors.
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    Downloads: 125 This Week
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  • 12
    Frhed is an binary file editor for Windows. It is small but has many advanced features like ability to load big files partially.
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    Downloads: 179 This Week
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  • 13
    Teuton Preinstalled Environment (TPE)

    Teuton Preinstalled Environment (TPE)

    Alternative PE to rescue, hack or troubleshoot your machine or network

    TeutonPE is inspired by PortableApps.com combined with a PeBuilder compiled Boot USB / CD. Programs can be used, even when there is no OS installed. BB4win is used for Live Menu and as the default Shell.All Plugins are also BartPE & XPE compatible
    Downloads: 139 This Week
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  • 14
    CurlFtpFS is a filesystem for acessing ftp hosts based on FUSE and libcurl. Automatically reconnects if the server times out.
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    Downloads: 85 This Week
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  • 15
    Linux Q83

    Linux Q83

    LinuxQ83 ARM64 (Raspberry Pi 4) (Radxa Orion O6) and AMD64

    LinuxQ83 Chopin – Version 12.12 and Beyond LinuxQ83 Chopin is a fast, secure, and innovative Linux distribution designed for both developers and general users. Starting with version 12.11, LinuxQ83 Chopin introduces a new default shell written in Rust, chosen for its exceptional speed and memory safety. This transition marks a significant step toward enhancing system performance and reducing security vulnerabilities often present in traditional shells. The Rust-based shell provides faster execution, lower resource consumption, and a more stable environment. Its modern design ensures intuitive scripting and an improved user experience, while remaining compatible with existing workflows. By embracing Rust, LinuxQ83 Chopin prioritizes both security and efficiency, reinforcing its reputation as a forward-thinking distribution. This update reflects the project's commitment to staying at the forefront of Linux development, offering users a cutting-edge yet reliable operating system
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    Downloads: 200 This Week
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  • 16
    Neko Void
    🐱 What is Neko-Void? Neko-Void is an unofficial respin of Void Linux featuring a preconfigured MATE desktop environment with carefully selected software for a complete out-of-the-box experience. Designed for users who want Void Linux's stability and minimalism with modern desktop functionality. 🖥️ Core System - Void Linux base (rolling release) - MATE Desktop fully configured and optimized - tinyfecth minimalist system information tool - UEFI and Legacy BIOS support 🎮 Gaming & Multimedia - Steam preinstalled and ready-to-use - Intel & AMD GPU drivers with full Vulkan support
    Downloads: 176 This Week
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  • 17
    SD Imager

    SD Imager

    This tool is used for writing drive images to USB sticks or SD cards

    Writes and reads complete drive images to/from SD drives. Running on Windows 7 and above, requires .NET Framework 4.5 Because Win32DiskImager didn't work on my computers (Win7 + Win8), I decided to write my own tool using VS2013 and .Net 4.5. Currently it can read and write Images from/to SD drives or other via USB attached storage. Basic formatting functionality is also included. Please write a review! Thx
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    Downloads: 57 This Week
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  • 18
    Tool for controlling the special features of a "U3 smart drive" USB Flash disk.
    Downloads: 43 This Week
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  • 19
    DelphiWebStart
    DelphiWebStart (DWS) is an Application Loader with TCP Sockets based on a ThinClient first spread over the Web, VPN or Intranet. So a user can download data (exes, maps, files) from a list and start it. DWS supports OpenSSL including a PKI HTTPS-Server.
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    Downloads: 59 This Week
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  • 20
    ThinVNC - Web Remote Desktop

    ThinVNC - Web Remote Desktop

    HTML5 Client for Remote Desktop Access

    ThinVNC is a web remote access client (browser-based, HTML5). It's an improved version of the standard VNC protocol. It covers all the same scenarios, but shows a much better performance, without the need to install a PC client or any browser plugin. Once you install ThinVNC on the PC or Laptop that acts as "server", you just need a web browser to connect. Access your desktop and files remotely (even from mobile devices) and work as if you were just in from that computer. ThinVNC is a pure web Remote Access implementation (HTML5 & AJAX based). The web client works on any HTML5-compliant browser such as Chrome, Firefox, Safari, Opera, IE, or Edge. NOTE: This project was the first version of Thinfinity VNC. Visit our website try out the most recent version of this product and check our other virtualization, WFH, and RDP solutions.
    Leader badge
    Downloads: 33 This Week
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  • 21
    MacroPilot

    MacroPilot

    MacroPilot: Piloting Tasks with Automated Macros

    Auto Clicker, Auto Keyboard Clicker, Macro Automation Player, and Keybinds! MacroPilot is an open-source software solution designed to streamline task management and enhance productivity through automated macros. With MacroPilot, users can automate repetitive tasks, freeing up valuable time. Features Added in v1.2.0-alpha: - Randomize Clicks: Instead of clicking at set intervals, add randomness between clicks. Previous Features: Auto Clicker - Customize Click Speed: Set time interval between clicks. - Infinite Loop or Set Number of Clicks: Endless clicking or a specific click count. - Left and Right Clicks: Left or right clicking. - Single or Double Clicks: Double or single clicks. - Customizable Hotkey: Custom hotkey to start/stop autoclicker. - Hold Click: Hold down left or right mouse button. NOTICE: I did not pay for a code signing certificate. Meaning, when a blue window pops up, click MORE INFO and then RUN ANYWAY.
    Downloads: 36 This Week
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  • 22
    Soplos Linux Boro

    Soplos Linux Boro

    Soplos Linux is a Debian Testing-based distribution with the GNOME

    Soplos Linux Boro is a Debian Testing-based GNU/Linux distribution featuring the GNOME desktop, designed for users who want a modern, elegant, and productive Linux experience. Key Features: ✅ Based on Debian Testing, providing rolling updates and the latest stable software. ✅ GNOME desktop, offering a sleek, intuitive, and highly integrated user interface. ✅ Focus on simplicity and elegance, with carefully selected applications and minimal bloat. ✅ Optimized for modern hardware while still maintaining reasonable performance on mid-range machines. ✅ Active development of user-friendly tools and a GNOME-specific Software Center built with Python and GTK. ✅ Planned support for proprietary drivers to maximize hardware compatibility and performance. Soplos Linux Boro delivers a smooth, polished experience for users seeking productivity and style, while keeping the flexibility and reliability of Debian. Try Soplos Linux Boro and discover a modern way to enjoy your desktop! 🌿�
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    Downloads: 90 This Week
    Last Update:
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  • 23
    packETH is a Linux GUI packet generator tool for ethernet. It allows you to create and send any possible packet or sequence of packets on the ethernet.
    Downloads: 22 This Week
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  • 24
    Aircrack-ng Windows GUI
    This is mainly just an interface tweak. Added function of mac address changer. If you have problems getting the mac changer to work, try using a mac address that starts with something other than "00" in the first octet. If you are intersted in learning about network security please check out my Juniper Networks training course at: http://academy.gns3.com/courses/juniper-jncia-intro-to-junos
    Downloads: 20 This Week
    Last Update:
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  • 25
    RunAsSystem
    For all 64 bit Windows systems, RunAsSystem provides a simple link in the right click menus of executables and batch files to allow you to run any program with system privileges.
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    Downloads: 43 This Week
    Last Update:
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