Browse free open source System software and projects for Server Operating Systems and Linux 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
    The Heirloom Project provides standard Unix utilities.
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    Downloads: 4,983 This Week
    Last Update:
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  • 2

    Log library for C++

    C++ library for flexible logging

    A library of C++ classes for flexible logging to files (rolling), syslog, IDSA and other destinations. It is modeled after the Log for Java library (http://www.log4j.org), staying as close to their API as is reasonable. Home: https://log4cpp.sourceforge.net Platforms: Linux, Windows, MacOS. New: CMake, CTest support for MS VS 2022, RAD Studio 12
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    Downloads: 754 This Week
    Last Update:
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  • 3

    empty

    Run applications under pseudo-terminal (PTY) sessions

    empty - run applications under pseudo-terminal (PTY) sessions to dialogue with interactive programs. Replace TCL/Expect with a simple tool and use your favorite shell (sh, bash, csh, tcsh, ksh, zsh, etc)
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    Downloads: 277 This Week
    Last Update:
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  • 4
    ooRexx (Open Object Rexx)
    Home of the Open Object Rexx Project. ooRexx is the open source version of IBM's Object REXX Interpreter. It is upwardly compatible with classic REXX and will execute classic REXX programs unchanged. The project is managed by the Rexx Language Association.
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    Downloads: 124 This Week
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  • 5
    Java Service Wrapper
    Configurable tool which allows Java applications to be installed and controlled like native NT or Unix services. Includes fault correction software to automatically restart crashed or frozen JVMs. Critical when app is needed 24x7. Built for flexibility.
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    Downloads: 118 This Week
    Last Update:
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  • 6
    File system/directory monitoring utilities with loggin and task processing support (can execute files or make a WCF service call). Multiple configuration options. Source code libraries can be used to create a custom file system monitor.
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    Downloads: 41 This Week
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  • 7

    bash debugger

    bash debugger

    A gdb-like debugger for bash
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    Downloads: 51 This Week
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  • 8
    FileVerifier++
    FileVerifier++ is a Windows utility for calculating hashes using a number of algorithms including CRC32, MD5, SHA-1, SHA-256/224/384/512, WHIRLPOOL, and RIPEMD-128/160/256/320. Supported hash file formats include MD5SUM .MD5, SFV, BSD CKSUM, and others.
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    Downloads: 44 This Week
    Last Update:
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  • 9
    JNode is a Java New Operating system Design Effort. JNode is a simple to use and install Java operating system for personal use on modern devices. Any java application runs on it, fast and safe. See our homepage for additional information.
    Downloads: 23 This Week
    Last Update:
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  • 10
    cx_Freeze is a set of utilities for freezing Python scripts into executables using many of the techniques found in Thomas Heller's py2exe, Gordon McMillan's Installer and the Freeze utility that ships with Python itself
    Downloads: 19 This Week
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  • 11
    newRPL

    newRPL

    The classic RPL programming language reimplemented and reimagined.

    This project reimplements from scratch the RPL language made popular by HP programmable calculators, in portable C/C++. The main goal is to release a complete computing environment for various targets. There's currently 4 active targets: the HP 50g, HP39gs and HP40gs calculators and a PC simulator (see the downloads section!). Other ports are planned for the future.
    Downloads: 20 This Week
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  • 12
    BEYE (Binary EYE) is a free, portable, advanced file viewer with built-in editor for binary, hexadecimal and disassembler modes. It contains a highlight AVR/Java/i86-AMD64/ARM-XScale/PPC-64 and other disassembler, full preview of MZ,NE,PE,ELF and other.
    Downloads: 43 This Week
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  • 13
    vmdkutil is a utility to manage VMware sparse virtual disk files (.vmdk), creating, cloning, merging, etc.
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    Downloads: 26 This Week
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  • 14
    z390 Portable Mainframe Assembler

    z390 Portable Mainframe Assembler

    z390 Portable Mainframe Assembler and Emulator

    z390 Portable Mainframe Assembler and Emulator
    Downloads: 6 This Week
    Last Update:
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  • 15
    Parallel Events and Asynchronous tasKing Library. Originally combining multi-threading with an efficient I/O event model, it's now more a lightweight object-oriented framework for event-based applications.
    Downloads: 15 This Week
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  • 16
    Provide secure and stable OS, based on highly modified Linux Kernel, own package system, like "BSD Ports". Compatible with x86, Power PC. Easy to use of any level users. Complete Documentantion in many languages. 99% compatible with Windows.
    Downloads: 7 This Week
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  • 17
    ZK - Simply Ajax and Mobile
    ZK is an open-source Java framework for building modern web and mobile applications. It enables developers to create rich, interactive UIs using only Java — no JavaScript required. With 200+ Ajax-powered components, event-driven architecture, and support for popular technologies like Spring, Java EE, and JSP/JSF, ZK makes it simple to deliver powerful and user-friendly web applications.
    Downloads: 2 This Week
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  • 18
    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: 5 This Week
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  • 19
    Java IDE, project support, build, debugger, grep.
    Downloads: 5 This Week
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  • 20
    OpenCom is an open-source component programming model designed by the School of Computing and Communications at Lancaster University, UK. This project maintains the official C language version of OpenCom.
    Downloads: 2 This Week
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  • 21
    TraceMAC - Traceroute for MAC addresses

    TraceMAC - Traceroute for MAC addresses

    TraceMAC is a command-line Layer 2 traceroute for Cisco switches

    TraceMAC is a Windows/Linux command-line tool that allows you to trace a specific MAC address thru Cisco switches. It works by connecting to a switch using SSH, SNMP, Telnet, HTTP or HTTPS and do some "show commands" and later process the output, this will happen recursively until it finds the switch where that MAC address (PC/Printer/Etc) is directly connected. Note: It works with Cisco switches only and you must have CDP enabled at least on trunks/links between switches! Is tested with Cisco switches: Catalyst: 2960,3560,3750,4948,6509,9200,9300,9500 (All protocols) Nexus: C9332C, 93180YC-EX (NX-OS SSH) Express 500 (HTTP) FYI: It uses Nbtscan.exe (NetBIOS) as a alternative method to discover the mac address of a host and now seems that it is considered a malware. Anyway it is just a simple network tool that can scan the network similar to NMAP or Angry IP Scanner, etc...
    Downloads: 1 This Week
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  • 22

    Oberon V4

    Oberon V4 for Linux and sources for different Oberon V4 implementation

    Here you can find both an Oberon V4 system for Linux (x86) and a collection of Oberon V4 sources for various other platforms. Oberon V4 was implemented at ETH Zurich for several platforms. Binaries can be found on their server[1] and on the one of the University of Linz[2] where Mössenböck's group did further development after he left ETH and the Group at ETH concentrated on System 3. More Information can be found in the wiki https://sourceforge.net/p/oberon/wiki/Home/ of this Project and on Wikipedia https://en.wikipedia.org/wiki/Oberon_(operating_system). In 2013 they were moved here for easy access and, in case of interest, collaboration on further development. The Oberon mailing list[3] is an established channel for its discussion and followed also by the administrators of this SF project. [1] ftp://ftp.ethoberon.ethz.ch/Oberon/OberonV4/ [2] ftp://oberon.ssw.uni-linz.ac.at/pub/Oberon/ [3] https://lists.inf.ethz.ch/mailman/listinfo/oberon
    Downloads: 2 This Week
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  • 23
    TinyTcl is a tiny version of Tcl, for small footprint machines and embeddable/rommable applications. It is derived from Tcl 6.7 and compiles to less than 60K, 10X smaller than Tcl 7 and Tcl 8.
    Downloads: 2 This Week
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  • 24
    Gobisoft

    Gobisoft

    Software auto-installation builder

    Gobisoft is a batch package builder for applications, it builds a self-install package of your programs. Creates a stand alone executable file that performs the (secured installation and removing) of the elements necessary to distribute your applications. The software offers many possibilities, such as executing commands before and after installation.
    Downloads: 1 This Week
    Last Update:
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  • 25
    Sarien is a portable implementation of the Sierra On-Line Adventure Game Interpreter (AGI), and is able to run games such as Leisure Suit Larry in the Land of the Lounge Lizards and Space Quest I and II.
    Downloads: 1 This Week
    Last Update:
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