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.

  • 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.
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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
    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: 56,214 This Week
    Last Update:
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  • 2
    The archive-crawler project is building Heritrix: a flexible, extensible, robust, and scalable web crawler capable of fetching, archiving, and analyzing the full diversity and breadth of internet-accesible content.
    Downloads: 10 This Week
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  • 3
    KaNaPi

    KaNaPi

    Educational Linux Distribution

    Main goals: * Prepare operating system based on Linux kernel and free software for use at home from scratch by building sources. Binary packages/images are also available. * Each package is installed in separate directory, so you can use different versions of applications and libraries by design. * There is only one user 'kanapi' with root permissions, so you don't have to login, remember passwords, etc. * Simple configuration * Automatic compilation.
    Downloads: 29 This Week
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  • 4
    twert

    twert

    Website, application blocking with scheduling. Self/Parental control.

    Anti-procrastination website and application blocker with scheduling. Perfect for students and parents alike. A free and open-source alternative to Cold Turkey. Made by Dang Nam Anh, Truong Duc Quan and Trieu Tran Duc Tri.
    Downloads: 15 This Week
    Last Update:
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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
    CodeCampus

    CodeCampus

    CodeCampus is a learning-first Linux OS for CSE and IT students

    CodeCampus is a custom Linux distribution based on Ubuntu 24, designed for beginner developers and CSE/IT students. It delivers a fully pre-configured, learning-first environment that allows users to start coding, exploring, and studying immediately—without manual setup or system tweaking. This comes bundled with essential programming languages, compilers, editors, and developer tooling, including C/C++, Java, Python, Rust, Node.js, Git, Docker, VS Code, Neovim, and a rich set of modern CLI utilities. Everything is pre-installed, pre-configured, and ready to use out of the box. Beyond development tools, CodeCampus provides a curated academic and learning ecosystem. It includes guided documentation, desktop shortcuts to programming and interview resources, structured learning references, and productivity-focused dotfiles. Combined with deep GNOME customizations, custom menus, extensions, icons, wallpapers, and boot themes,
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    Downloads: 13 This Week
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  • 6
    Jawi Phonetic Keyboard
    Keyboard ini disusun berdasarkan persamaan fonetik huruf rumi dan jawi. Keyboard ini juga menyokong tulisan al-Quran dengan baris-baris asas. Sticker tidak lagi diperlukan untuk menaip jawi sekiranya anda memahami kaedah yang digunakan dalam penyusunan huruf-huruf jawi ini.
    Downloads: 13 This Week
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  • 7
    Life

    Life

    Linux for Education based on Ubuntu MATE

    Li-f-e: Linux for Education. A free Linux distribution for education.
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    Downloads: 12 This Week
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  • 8
    FreeSMS is a PHP based application to manage an educational facility of teachers and students alike. It is a teacher and student management system providing marketing, registration, course management, attendance and a student evaluation system.
    Downloads: 3 This Week
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  • 9
    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: 9 This Week
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  • Desktop and Mobile Device Management Software Icon
    Desktop and Mobile Device Management Software

    It's a modern take on desktop management that can be scaled as per organizational needs.

    Desktop Central is a unified endpoint management (UEM) solution that helps in managing servers, laptops, desktops, smartphones, and tablets from a central location.
    Learn More
  • 10
    Implements Lazy Wavelet Transform with Lifting in several variants: 1-D, 2-D, 3-D, integer precision, etc. Sample video compressor, integrated with FFmpeg. OpenCL version is created.
    Downloads: 5 This Week
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  • 11
    ODS3 Virtual Machine Challenge

    ODS3 Virtual Machine Challenge

    Virtual Machine Image To Test Penetration Skills

    The ODS3 Virtual Machine Challenge are downloadable images that can be run as VMWare or VirtualBox instances. The Idea behind the challenge is to test and exercise web application penetration testing in a controlled environment. These images are great for cyber security students, penetration testers and hobbyist. Care should be taken if installed on an Internet access host as the application are purposely vulnerable to attack and exploitation.
    Downloads: 7 This Week
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  • 12
    eMKatic

    eMKatic

    Эмулятор ЭКВМ серии «Электроника»

    eMKatic — это кроссплатформенный эмулятор современных ЭКВМ серии «Электроника» производства НПП «СЕМИКО» (г. Новосибирск), являющихся развитием советских программируемых микрокалькуляторов с обратной польской нотацией Б3-34, МК-52, МК-61.
    Downloads: 5 This Week
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  • 13
    netmate

    netmate

    displays network protocol headers in uniform RFC like format

    Netmate is a GTK+ program that shows network protocols headers in 32-bit aligned fields, identical as they are represented in Request for Comments (RFCs). It can be used to learn and teach about network protocols and to understand their functionality and collaboration.
    Downloads: 5 This Week
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  • 14
    Pythońol is an all-in-one program to help English speakers learn Spanish. Features include: Pronunciation, verb conjugation, dictionary (70,000+ words), thesaurus, quizzes, full-text translation, idioms, a verb browser, and a large reference section.
    Downloads: 3 This Week
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  • 15
    Catakig: an emulator of the venerable Apple II personal computer.
    Downloads: 2 This Week
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  • 16
    This project aims to implement an LC2/LC3 assembler and simulator for the Linux and Windows platforms.
    Downloads: 2 This Week
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  • 17
    MBZ Moodle Restore

    MBZ Moodle Restore

    Restore name of original files from MZB Moodle Backup file

    Restore name of original files from MBZ Moodle Backup file. MBZ Restore is an application that performs the extraction and restoration of the original name of the Moodle backup file. Newer versions of Moodle backup generate file names that do not easily identify with the original files. Files can be renamed by hand but you have to find out what their original name is. This application does this for you.
    Downloads: 2 This Week
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  • 18
    For new versions, check https://github.com/Darkkey/javaNetSim javaNetSim (Java Network Simulator) - it's a fork of a project jFirewallSim. The main goal of javaNetSim is creating a software to simulate various TCP/IP networks based on Ethernet, WiFi, PPP, etc...
    Downloads: 2 This Week
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  • 19
    A windows c++ program to test various libraries on various routers to forward ports on routers.
    Downloads: 2 This Week
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  • 20
    Sistema de gestion para colegios
    Downloads: 1 This Week
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  • 21
    XWinGreek is small keyboard utility for inputting classical (polytonic) Greek in Unix/Linux systems with XWindow. It supports several encodings and uses dead key input method, like in "Polytonic Greek" keyboard layout from Windows 2000/XP distribution.
    Downloads: 1 This Week
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  • 22
    A collection of tools to tokenize PBASIC source code and send it to a BASIC Stamp microcontroller.
    Downloads: 1 This Week
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  • 23

    CLEiM

    Cross Lingual Education in Medicine

    CLEiM (Cross Lingual Education in Medicine) is an opensource version of an Intelligent System which extract concepts from medical texts and provides qualified information. It integrates information from various sources. This system has been developed by the Intelligent System Group GSI (http://www.esi.uem.es/gsi/) at UEM University. We do NER (Named Entity Recognition) based on GATE platform. The installation is simple, you can use it as a Web application. It has been tested under apache-tomcat. The original system has been successfully used to carry out active learning activities with medical students. However, it could be interesting in much more knowledge fields.
    Downloads: 1 This Week
    Last Update:
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  • 24
    Tibco EMS Message Admin allows you to purge a queue, list messages in a queue, save a message from a queue to a file, edit the message in memory and send to another (or same) queue, load message from a file and send it to a queue
    Downloads: 1 This Week
    Last Update:
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  • 25

    Winsuitz

    It is a smart interface for windows xp,Its like a windows 8 start menu

    Winsuitz is a smart interface for windows xp, Its just like a windows 8 start menu for windows xp
    Downloads: 1 This Week
    Last Update:
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