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.

  • 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.
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  • 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
    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
    Last Update:
    See Project
  • 2
    The package includes tools that make a fully functional user accounting system for a small ISP. Functionality includes: traffic shaping, management of users' accounts, firewall, network monitoring, link quality measurement, alert system, etc.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 3
    raddump interprets captured RADIUS packets to print a timestamp, packet length, RADIUS packet type, source and destination hosts and ports, and included attribute names and values for each packet.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 4
    Zervit is a simple lightweight attractive http portable server. This executable serves the files in its folder making file sharing easy in a network or internet. It supports directory listing and an easy configuration system. Web: http://zervit.sf.net
    Downloads: 2 This Week
    Last Update:
    See Project
  • 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
  • 5
    EHNT is a tool which turns streams of Netflow (version 5) data into something useful and human-readable. (Netflow is a UDP-based traffic reporting protocol created by Cisco, generated by Cisco, Juniper, Foundry, and other routers.)
    Downloads: 3 This Week
    Last Update:
    See Project
  • 6
    OpenFirewall (only for windows XP)
    Only for windows XP OpenFirewall is based on two lines of defence first WIPFW ( Kernel-mode driver ) and second tdifw ( application-mode TDI-driver ) . Is a Windows firewall easy to use like the commercial products
    Downloads: 3 This Week
    Last Update:
    See Project
  • 7
    Delay Tolerant Networking reference implementation and related projects.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8
    Ex-Crawler
    Ex-Crawler is divided into 3 subprojects (Crawler Daemon, distributed gui Client, (web) search engine) which together provide a flexible and powerful search engine supporting distributed computing. More informations: http://ex-crawler.sourceforge.net
    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    A collection of Objective Caml libraries to support the development of concurrent, single-threaded Internet application servers.
    Downloads: 1 This Week
    Last Update:
    See Project
  • Run applications fast and securely in a fully managed environment Icon
    Run applications fast and securely in a fully managed environment

    Cloud Run is a fully-managed compute platform that lets you run your code in a container directly on top of scalable infrastructure.

    Run frontend and backend services, batch jobs, deploy websites and applications, and queue processing workloads without the need to manage infrastructure.
    Try for free
  • 10
    This is a modified version of the Webmin interface for SquidGuard as written by Tim Niemueller. This webmin interface has been updated to repair several bugs, mainly in reference to use of the blacklists.
    Leader badge
    Downloads: 1 This Week
    Last Update:
    See Project
  • 11
    Atomic OS is a responsive Web 2.0 operating environment & development platform. Based on AJAX techniques, it emulates/provides standard operating system features including a command-line shell, interpreter, filesystem, database access and GUI services.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 12
    IPHPLog
    IPHPLog (IP PHP Log) is a simple software written in PHP, JS and SQL that runs over a MySQL database manager system . IPHPLog can log the information of your visitors and organize that on a data base with GeoIP.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    Fully packaged linux distribution to provide internet access and resource management to small and medium companies.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 14
    Open Linux TSPL is a multiplatform (cross-platform) free software suite for software and web development. Open Linux TSPL helps developers create applications for Win32, Linux, Unix and Mac using one codebase. [Will be released: September, 2008]
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15

    OpenFlow

    A publishing workflow management system

    OpenFlow is a web based, publishing workflow management system aimed at magazine production, controlling editorial planning thru imposition. It uses web standards (XHTML, CSS, javascript, XML, XSL, RDF) making it easy to configure and customize.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    Productivito
    Open Source Productivity Tools for Home, Business and School LOOKING FOR CONTRIBUTORS (Contact us for details) Skills required: PHP, Zend, Database design - for web app QT - for client&server Features: Keystroke monitoring Log all keystrokes along with the window name they are typed. Emails sent and received logging Events timeline logging Log all events employees performed and view them in an organized listing. Website activity Log all websites visited by the popular browsers. See also Web analytics , Web log analysis software Application usage Monitor and log all applications ran. Documents opened Record documents and files opened and viewed. Attentiveness monitoring Display a popup on the employee's workstation with a set amount to time to click it. Remote Desktop Viewing - Grab screenshots of the remote computer's desktop. Remote System Information Viewing - View a listing of various system information for the remote PC.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    PySocks - a platform independent SOCKS proxy written in Python Do you share an DSL or cable connection between several computers? With PySocks you'll be able to use all features of ICQ, MIRC, Napster and such again!
    Leader badge
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    RohedinVPN is an exciting new program being developed allowing anybody to create and host their own simple VPN (Virtual Private Network). It simplifies the entire process of setting up a VPN, allowing easy creation of a privately shared network.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19
    SVPN provides an encrypted tunnel between two hosts, which in combination with IP forwarding enabled on one of the hosts can create a VPN.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    Downloads a xml file for a Australia ISP westnet.com.au and displays amounts downloaded. From the westnet.com.au usage file. This Really does come under the category of scratching my own itch, but I'm open to expansion ideas. Download the SVN version!
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    phpSAM is a tool written in PHP intended to handle the events logged by snort(snort.org) in MySQL. There is being worked on making graphs more intuitive. For an update on the progress, please do not hesitate to visit phpsam.sf.net
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    .NetCyberKit aims to create a programmers internet toolkit for the Microsoft.Net framework. The library will include functionalilty for advanced DNS, finger and whois lookups. This library will be primarily written in VB.NET
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    6mop - IPv6 inside IPv4 tunnel management system
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    AdN is a web interface that manages a wireless community. AdN can handle new node requests and automatically asign them a valid IP range. AdN objective is to provide a set of tools to manage node related data like NodeManager does but in deeper detail
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    AESOP (Advanced Encrypted Stackable Open Proxy) is a powerful application for creating encrypted TCP tunnels.
    Downloads: 0 This Week
    Last Update:
    See Project
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