Open Source System Software
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System Software
Browse free open source System software and projects for Windows and OpenBSD 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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MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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Gemini 3 and 200+ AI Models on One PlatformBuild generative AI apps with Vertex AI. Switch between models without switching platforms.
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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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Barrier
Open-source KVM software
Barrier is a software that works just like a KVM (keyboard, video and mouse) switch, which allows you to use a single mouse and keyboard to control several different computers by physically turning a dial on the box to switch the machine you're controlling at any given time. Barrier is able to do this in software, giving you control over different machines by simply moving your mouse to the edge of the screen, or by using a keypress to switch focus to a different system. Barrier was built to be simple and reliable, allowing you to control a different machine by simply using your mouse and keyboard from another. It works on all major operating systems (Linux, Windows, MacOS/OS X), including FreeBSD and OpenBSD. -
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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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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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Ettercap is a multipurpose sniffer/interceptor/logger for switched LAN. It supports active and passive dissection of many protocols (even ciphered ones) and includes many feature for network and host analysis. Development has been moved to GitHub, https://github.com/Ettercap/ettercap
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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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zpaqfranz
Zpaq compatible archiver for Win, Linux, Free/OpenBSD, Solaris & MacOS
Forget pruning! Get forever storage of your files, managing critical backups with bulletproof archival solutions and enterprise-grade reliability Far more efficient than Time Machine or ZFS snapshots-perfect for VM backups and permanent archiving, effortlessly handling TBs and millions of files Optimized for cloud/NAS/USB with ultra-low bandwidth, military-grade encryption, and 1GB/s+ speeds on modern hardware GUI (Win/Linux/Mac) https://sourceforge.net/projects/catpaq Why choose catpaq/zpaqfranz? ✓ Complete: single/multi-file storage architecture ✓ Modern: SHA-2, SHA-3, BLAKE3, XXH3 and more ✓ Paranoid: anti-ransomware data verification with integrity checks ✓ Runs everywhere: TrueNAS, ARM-powered, even ESXi ✓ Lightning-fast: multi-core processing + hardware acceleration ✓ Deduplicated disk imaging ✓ Battle-tested: 15+ years of active development since 2009 https://github.com/fcorbelli/zpaqfranz https://www.francocorbelli.it/zpaqfranz 100% FOSS • forever free -
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Vifm
Vifm is a curses file manager with Vim-like everything.
Vifm is a file manager with curses interface, which provides Vim-like environment for managing objects within file systems, extended with some useful ideas from mutt. If you use Vim, Vifm gives you complete keyboard control over your files without having to learn a new set of commands. -
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A portable, modular and efficient ftp server, supporting SSL, IPv6, UTF-8 compliant, multithreaded, modules ,externals scripts. unix-like permissions+acls, virtual users/groups, security, speed, bandwith limitation (user,group,global), group admins, per
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8 Monitoring Tools in One APM. Install in 5 Minutes.AppSignal works out of the box for Ruby, Elixir, Node.js, Python, and more. 30-day free trial, no credit card required.
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The Sleuth Kit is a C++ library and collection of open source file system forensics tools that allow you to, among other things, view allocated and deleted data from NTFS, FAT, FFS, EXT2, Ext3, HFS+, and ISO9660 images.
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restic
Fast, secure and efficient backup program
Restic is a backup program that is designed to be easy to use, fast, secure and efficient. It makes doing backups a fast and frictionless process, so you can backup your files every day if you need to. It supports backends for storing backups natively, including on the local directory, sftp server (via SSH), HTTP REST server (protocol rest server), OpenStack Swift, among many others. It also uses cryptography to ensure the confidentiality and integrity of your data. Restic supports Windows, macOS and Linux operating systems, as well as FreeBSD and OpenBSD. -
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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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BGINFO4X - BGINFO for X and for Windows!
Shows desktop information on your screen
BGINFO for X, also called BGINFO4X, is a clone of the popular program BGINFO for Microsoft Windows created by Sysinternals. BGINFO4X is designed for pretty print useful information (CPU model, Hostname, IP address, OS version, Office version, and much more ...) on your desktop background or wallpaper. See the screenshots to see BGINFO4X in action. BGINFO4X is Multi Platform (Windows, MacOSX, Linux, BSD). BGINFO4X is Highly Customizable. BGINFO4X is Open Source. BGINFO4X comes with lots of Features. See the main Features below on this page. Find more information in http://sourceforge.net/p/bginfo4x/wiki/BGINFO4X/ -
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Dibbler - a portable DHCPv6
Portable DHCPv6 implementation
Dibbler is a portable DHCPv6 implementation. Is supports stateful (i.e. IPv6 address granting) as well as stateless (i.e. option granting) autoconfiguration for IPv6. Linux 2.4/2.6/3.0, Windows XP/2003/Vista/7/8 (experimental for NT4/2000), Mac OS X, FreeBSD, NetBSD and OpenBSD. -
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FileRunner is a two pane file manager for Unix and Unix like systems. It is simple and efficient and has a built-in FTP and SFTP client. It also does a reasonable (and improving) job on Windows systems. New and improved from a FileRunner of long ago.
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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 -
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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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libusbx
libusbx is OBSOLETE - use http://libusb.info
libusbx is OBSOLETE and has been superseded by http://libusb.info -
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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.
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Mednafen
Multi-System Emulator
Mednafen is a portable, utilizing OpenGL and SDL, argument(command-line)-driven multi-system emulator. -
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z390 Portable Mainframe Assembler
z390 Portable Mainframe Assembler and Emulator
z390 Portable Mainframe Assembler and Emulator -
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RemoteBox
A client for the remote use of VirtualBox on a server
RemoteBox is an open-source VirtualBox client which means you can remotely administer (ie over the network) an installation of VirtualBox on a server, including its guests and interact with them as if they were running locally. VirtualBox is installed on the server machine and RemoteBox runs on the client machine. RemoteBox provides a complete Gtk 3 graphical interface with a look and feel similar to that of VirtualBox's native GUI and supports the vast majority of features. -
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Intrusion detection / "sticky" honey pot technology using virtual servers to detect and trap worms, hackers, and other malware. ***Historical use only - Active Development stopped***
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Pen Loadbalancer
Pen is a load balancer for udp and tcp based protocols.
This is Pen, a load balancer for udp and tcp based protocols such as dns, http or smtp. It allows several servers to appear as one to the outside and automatically detects servers that are down and distributes clients among the available servers. This gives high availability and scalable performance. -
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PAM module which permits authentication for arbitrary services via ssh-agent. Written with sudo in mind, but like any auth PAM module, can be used for for many purposes.
