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

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  • 1

    S.M.A.R.T. Monitoring Tools

    Disk Inspection and Monitoring

    smartmontools contains utility programs (smartctl, smartd) to control/monitor storage systems using the Self-Monitoring, Analysis and Reporting Technology System (S.M.A.R.T.) built into most modern ATA and SCSI disks. It is derived from smartsuite.
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    Downloads: 15,370 This Week
    Last Update:
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  • 2
    libusb

    libusb

    A cross-platform library that gives apps easy access to USB devices

    Library to enable user space application programs to communicate with USB devices
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    Downloads: 4,352 This Week
    Last Update:
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  • 3
    Pandora Open

    Pandora Open

    Open Source Monitoring System for performance and availability.

    Pandora OPEN is a high-performance, 100% open-source monitoring ecosystem, born as the independent evolution of the Pandora FMS community branch after version 777. Licensed under GPLv2, it provides a modular and sovereign platform for supervising networks, servers, and applications without commercial dependencies. It features multi-platform agents, remote monitoring (SNMP, WMI, HTTP), GIS maps, and advanced visual dashboards. Entirely maintained by the community on GitHub, it ensures total transparency, technical flexibility, and absolute freedom for system administrators.
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    Downloads: 1,186 This Week
    Last Update:
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  • 4
    libivykis is a thin wrapper over various OS'es implementation of I/O readiness notification facilities (such as poll(2), kqueue(2)) and is mainly intended for writing portable high-performance network servers.
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    Downloads: 557 This Week
    Last Update:
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  • 5
    Additional error correction for CD, DVD and BD media.
    Downloads: 65 This Week
    Last Update:
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  • 6
    Rumble Mail Server
    Rumble is a mail server suite for SMTP (ESMTPSA), HTTP, POP3 and IMAP4v1 with an extensive C/C++ and Lua API for scripting. It comes with support for SSL/TLS, SQLite and MySQL and has a web-based administration and webmail feature. Additional included modules feature greylisting, DNS blacklisting, SpamAssassin support and dynamic performance scaling as well as a multithreaded structure that allows for clustering of multiple servers for one or all domains, and with the ease of the Lua API, you can create your own new server mailing lists, CRM software, e-marketing and other extensions within minutes.
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    Downloads: 28 This Week
    Last Update:
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  • 7
    Hyenae
    Hyenae is a highly flexible platform independent network packet generator. It allows you to reproduce several MITM, DoS and DDoS attack scenarios, comes with a clusterable remote daemon and an interactive attack assistant. *** Hyenae is back *** Hyenae will be continued here: https://sourceforge.net/p/hyenae-ng
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    Downloads: 63 This Week
    Last Update:
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  • 8
    GoldBug - Encrypted Communications

    GoldBug - Encrypted Communications

    Chat Messenger. E-Mail-Client. Websearch. Filetransfer.

    GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger & a file transfer. Also included is an URL-RSS-DB & a p2p web search. Current vers. w/ McEliece Algorithm. GoldBug has been 2013 - 2023 ten years just another Graphical User Interface of the Spot-On Encryption Suite. Main GUI features: Minimal & colorful Interface with Tabs in the East. Microsoft & Qt MinGW deprecated Win32 & for Compiling: ● https://sourceforge.net/p/goldbug/wiki/compiling As Spot-On implemented the minimal GB-concept & Nuvola Icons, GoldBug has now been fully integrated into Spot-On Win64: Just choose Tabs at East & Mini-View in Options - w/ Nuvola Icons of course! Voilá! & Many Thanks, Pro-Files can be found archived at ● current source: https://github.com/textbrowser/spot-on ● EN Manual: https://www.amazon.com/dp/3749435065 ● DE: https://compendio.github.io/goldbug-manual-de/ ● Study: https://www.amazon.com/asin/dp/3750408971
    Downloads: 27 This Week
    Last Update:
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  • 9
    qpxtool

    qpxtool

    Utility for testing CD/DVD quality and burning rate

    Utility for testing CD/DVD quality and transfer rate written on C++ and Qt
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    Downloads: 41 This Week
    Last Update:
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  • 10
    Munin
    Master/node to gather and graph "everything" on your systems using Tobi Oetiker's rrdtool. It can optionally warn your surveillance software. This software package was originally called LRRD. The project. Please see http://munin-monitoring.org/
    Downloads: 3 This Week
    Last Update:
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  • 11
    z390 Portable Mainframe Assembler

    z390 Portable Mainframe Assembler

    z390 Portable Mainframe Assembler and Emulator

    z390 Portable Mainframe Assembler and Emulator
    Downloads: 3 This Week
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  • 12
    Free File Renamer
    A cross-platform file and folder mass renamer. Easy to use and to learn. Features: read new names from text files; insert, replace and remove strings; numbering; case-change; real-time preview; interactive tutorial; order files in different ways.
    Downloads: 1 This Week
    Last Update:
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  • 13
    GeniXCMS

    GeniXCMS

    Simple and Lightweight CMS Framework

    GeniXCMS is a PHP Based Content Management System and Framework (CMSF). It's a simple and lightweight of CMSF. Very suitable for Intermediate PHP developer to Advanced Developer. Some manual configurations are needed to make this application to work. If You don't have a programming skills, please don't bother to download this. It will harm You anyway.
    Downloads: 2 This Week
    Last Update:
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  • 14
    The Application Server Development Library is a generic component modules library for application server/services & software development on the Windows & Linux & BSD platforms. It can be used for rapid developing network application and generic software.
    Downloads: 0 This Week
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  • 15
    Bandwidth Monitor NG is a small and console-based live network and disk-io bandwidth monitor for Linux, BSD, Solaris, Mac OS X and others. features: output of KB/s, Kb/s, packets, errors, average, max and total sum; in curses, plain console, CSV or HTML MOVED TO: https://github.com/vgropp/bwm-ng
    Downloads: 0 This Week
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  • 16
    Defa Protect HTML5 Video From Download

    Defa Protect HTML5 Video From Download

    Prevent and Protect Your HTML5 Video, Music , Audio From Download Free

    Defa Protector is A Simple PHP and Wordpress Plugin To Protect and Prevent Video Save As From Browser and Some Video Grabber. There is 100% Guaranteed Protection and There might be some tradeoff but If you care about Digital Rights Management of Your Video and Music Content. This Project is for you. Defa Protector 6.7.1 Revamp Code For Better Performance To The Bone. We almost rewritten this project from scratch.
    Downloads: 0 This Week
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  • 17
    A set of python scripts to provide command-line access to GroundWork Open Source. gwcmd allows to perform operations from commandline, and from remote servers.
    Downloads: 0 This Week
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  • 18
    An easy-to-use Java desktop application to centrally monitor resources from a variety of environments, including the ability to dynamically set up rules to trigger actions based on monitoring. Clients connect via simple and efficient UDP based protocol.
    Downloads: 0 This Week
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  • 19
    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
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  • 20
    Linfo
    Very fast cross-platform php script that describes the host server in extreme detail, giving information such as ram usage, disk space, raid arrays, hardware, network cards, kernel, os, samba/cups/truecrypt status, temps, disks, and much more. Latest code is here: https://github.com/jrgp/linfo
    Downloads: 0 This Week
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  • 21

    Mini vMac

    a miniature early Macintosh emulator

    Mini vMac emulates a Macintosh Plus, one of the earliest of Macintosh computers. It can run old Macintosh software that otherwise couldn't be used on recent machines. (So far available for MacOS, Windows, and X)
    Downloads: 0 This Week
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  • 22
    Nixstaller is an Open Source project with the goal to create user friendly and flexible installers that work on various UNIX like systems. Some of its features are: small size overhead, large compatibility, Lua scripting and few dependencies.
    Downloads: 0 This Week
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  • 23
    OpenVPN

    OpenVPN

    Robust and flexible VPN network tunnelling

    OpenVPN is a robust and highly flexible tunneling application that uses all of the encryption, authentication, and certification features of the OpenSSL library to securely tunnel IP networks over a single TCP/UDP port. Discussion forums and project wiki can be found here: https://forums.openvpn.net/ http://community.openvpn.net/openvpn
    Downloads: 0 This Week
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  • 24
    This project provides a network virtualization software to construct virtual IP Networks by using P2P network. Our goal is to construct distributed and decentralized virtual IP Networks.
    Downloads: 0 This Week
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  • 25
    RpyConfig

    RpyConfig

    A light and simple config.txt creator for Raspberry Pi.

    A light and simple config.txt creator for Raspberry Pi. You can create the config.txt file simply with some click, without use manual.
    Downloads: 0 This Week
    Last Update:
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