Open Source Server Operating Systems System Software

System Software for Server Operating Systems

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

  • $300 Free Credits for Your Google Cloud Projects Icon
    $300 Free Credits for Your Google Cloud Projects

    Start building on Google Cloud with $300 in free credits. No commitment, no credit card required until you're ready to scale.

    Launch your next project with $300 in free Google Cloud credits—no strings attached. Test, build, and deploy without risk. Use your credits across the entire Google Cloud platform to find what works best for your needs. After your credits are used, continue with always-free tier services. Only pay when you're ready to scale. Sign up in minutes and start exploring.
    Start Free Trial
  • Build Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
    Try It Free
  • 1

    Info-ZIP project

    Info-ZIP portable compression/archiver utilities

    Info-ZIP portable compression/archiver utilities (Zip, UnZip, WiZ, etc.)
    Leader badge
    Downloads: 115,951 This Week
    Last Update:
    See Project
  • 2
    WinMerge

    WinMerge

    Windows visual diff and merge for files and directories

    WinMerge is a Windows tool for visual difference display and merging, for both files and directories. It is highly useful for determining what has changed between file versions, and then merging those changes. WinMerge has Unicode support, Flexible syntax coloring editor, Visual SourceSafe integration, and Windows Shell integration. Regexp filtering for filenames and lines. Side-by-side line difference and highlights differences inside lines. A file map shows the overall file differences in a location pane. The user interface is translated into several languages.
    Leader badge
    Downloads: 31,297 This Week
    Last Update:
    See Project
  • 3

    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.
    Leader badge
    Downloads: 22,258 This Week
    Last Update:
    See Project
  • 4
    System Informer

    System Informer

    View and manage processes, services and more with this powerful tool

    System Informer is a free and open source process viewer. This multi-purpose tool will assist you with debugging, malware detection and system monitoring.
    Leader badge
    Downloads: 6,920 This Week
    Last Update:
    See Project
  • Go from Code to Production URL in Seconds Icon
    Go from Code to Production URL in Seconds

    Cloud Run deploys apps in any language instantly. Scales to zero. Pay only when code runs.

    Skip the Kubernetes configs. Cloud Run handles HTTPS, scaling, and infrastructure automatically. Two million requests free per month.
    Try it free
  • 5
    Null-modem emulator

    Null-modem emulator

    The virtual serial port driver for Windows.

    The Null-modem emulator (com0com) is a kernel-mode virtual serial port driver for Windows. You can create an unlimited number of virtual COM port pairs and use any pair to connect one COM port based application to another. The HUB for communications (hub4com) allows to receive data and signals from one COM or TCP port, modify and send it to a number of other COM or TCP ports and vice versa.
    Leader badge
    Downloads: 4,208 This Week
    Last Update:
    See Project
  • 6

    cdrecord

    Highly portable CD/DVD/BluRay command line recording software

    cdrecord: A CD/DVD/BD recording program readcd: A program to read CD/DVD/BD media with CD-clone features cdda2wav: The most evolved CD-audio extraction program with paranoia support mkisofs: A program to create hybrid ISO9660/Joliet/HFS filesystems with optional Rock Ridge attributes isodebug: A program to print mkisofs debug information from media isodump: A program to dump ISO-9660 media isoinfo: A program to analyse/verify ISO/9660/Joliet/Rock-Ridge Filesystems isovfy: A program to verify the ISO-9660 structures rscsi: A Remote SCSI enabling daemon
    Leader badge
    Downloads: 8,411 This Week
    Last Update:
    See Project
  • 7
    VICE

    VICE

    Versatile Commodore Emulator

    VICE is an emulator collection which emulates the C64, the C64-DTV, the C128, the VIC20, practically all PET models, the PLUS4 and the CBM-II (aka C610). It runs on Unix, MS-DOS, Win32, OS/2, Acorn RISC OS, BeOS, QNX 6.x, Amiga, GP2X or Mac OS X machines.
    Leader badge
    Downloads: 2,533 This Week
    Last Update:
    See Project
  • 8
    Ext2 File System Driver for Windows

    Ext2 File System Driver for Windows

    A Linux ext2/ext3 file system driver for Windows

    Ext2Fsd is an open source Linux ext2/ext3 file system driver for Windows systems (2K/XP/VISTA/WIN7/WIN8, X86/AMD64).
    Leader badge
    Downloads: 2,172 This Week
    Last Update:
    See Project
  • 9
    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.
    Leader badge
    Downloads: 1,673 This Week
    Last Update:
    See Project
  • Cut Data Warehouse Costs by 54% Icon
    Cut Data Warehouse Costs by 54%

    Easily migrate from Snowflake, Redshift, or Databricks with free tools.

    BigQuery delivers 54% lower TCO with exabyte scale and flexible pricing. Free migration tools handle the SQL translation automatically.
    Try Free
  • 10
    Nikkho

    Nikkho

    Javier Gutiérrez Chamorro (Guti) Open source projects

    Javier Gutiérrez Chamorro (Guti) Open source projects Author's website: https://www.javiergutierrezchamorro.com
    Leader badge
    Downloads: 1,055 This Week
    Last Update:
    See Project
  • 11
    UltraDefrag

    UltraDefrag

    Increase your system performance with this easy to use tool

    Please note, here you can find the latest open source release of UltraDefrag (7.1.4). The most recent UltraDefrag release (15.0.0) can be found on our official website: https://ultradefrag.net UltraDefrag is a disk defragmenter for Windows, which supports defragmentation of locked system files by running during the boot process. It is easy to use without any complicated scripting or a huge load of configuration settings. You can filter the files processed by size, number of fragments, file name and path. You can terminate the process early by specifying an execution time limit.
    Leader badge
    Downloads: 843 This Week
    Last Update:
    See Project
  • 12

    Privoxy

    HTTP proxy to block ads and customize webpages

    Privoxy is a non-caching web proxy with advanced filtering capabilities for enhancing privacy, modifying web page data and HTTP headers, controlling access, and removing ads and other obnoxious Internet junk. Privoxy has a flexible configuration and can be customized to suit individual needs and tastes. It has application for both stand-alone systems and multi-user networks.
    Leader badge
    Downloads: 495 This Week
    Last Update:
    See Project
  • 13
    ANSI C functions and macros for flexible logging to files 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. Intended for use in time-space critical environments
    Leader badge
    Downloads: 5,083 This Week
    Last Update:
    See Project
  • 14
    Iometer
    I/O performance Analysis Tool
    Leader badge
    Downloads: 385 This Week
    Last Update:
    See Project
  • 15
    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.
    Leader badge
    Downloads: 440 This Week
    Last Update:
    See Project
  • 16
    Cntlm is an NTLM / NTLMv2 authenticating HTTP/1.1 proxy. It caches auth'd connections for reuse, offers TCP/IP tunneling (port forwarding) thru parent proxy and much much more. It's in C, very fast and resource-efficient. Go to http://cntlm.sf.net/
    Leader badge
    Downloads: 354 This Week
    Last Update:
    See Project
  • 17
    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.
    Leader badge
    Downloads: 251 This Week
    Last Update:
    See Project
  • 18
    Finds problems in MP3 files and helps the user to fix many of them using included tools. Looks at both the audio part (VBR info, quality, normalization) and the tags containing track information (ID3.) Also includes a tag editor and a file renamer.
    Leader badge
    Downloads: 262 This Week
    Last Update:
    See Project
  • 19
    The Heirloom Project provides standard Unix utilities.
    Leader badge
    Downloads: 1,194 This Week
    Last Update:
    See Project
  • 20

    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)
    Leader badge
    Downloads: 324 This Week
    Last Update:
    See Project
  • 21

    avbuild

    ffmpeg build tool and prebuilt packages for all platforms

    iOS, android, raspberry pi, windows store, windows desktop, linux, macOS etc. Multiple toolchains support, include gcc, clang, vs2013, vs2015, vs2017. Hardware accelerated decoders and encoders support. Source code: https://github.com/wang-bin/avbuild
    Leader badge
    Downloads: 1,100 This Week
    Last Update:
    See Project
  • 22

    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
    Leader badge
    Downloads: 551 This Week
    Last Update:
    See Project
  • 23
    OpenSnitch

    OpenSnitch

    OpenSnitch is a GNU/Linux port of the Little Snitch firewall

    OpenSnitch is a GNU/Linux port of the Little Snitch firewall. You can launch the GUI from the icon or from the system menu. The daemon will start intercepting connections, prompting you to allow or deny them. If you don't apply an action, after 15 seconds (configurable) it'll apply the default action configured. When you open the GUI, you'll see all the connections and processes that the daemon has intercepted. Double click on a row to view the details of a process, rule, host or user. Once you know which are the common processes, IPs and hosts that your machine is connecting to, you can start creating permanent rules (Duration: always) to deny or allow them. You can also convert temporary rules to permanent by right-clicking on a temporary rule or by double-clicking on it, and then edit it. By default OpenSnitch UI listens on a local Unix socket in /tmp/osui.sock.
    Downloads: 27 This Week
    Last Update:
    See Project
  • 24
    Contiki is an open source, highly portable, networked, multi-tasking operating system for memory-constrained systems. Contiki current source code: https://github.com/contiki-os/contiki Contiki historical source code: https://github.com/adamdunkels/contiki-1.x
    Downloads: 119 This Week
    Last Update:
    See Project
  • 25
    Visual Syslog Server for Windows

    Visual Syslog Server for Windows

    Free Syslog Server for Windows with a graphical user interface

    Visual Syslog Server for Windows is a free open source program to receive and view syslog messages. Useful when setting up routers and systems based on Unix/Linux. Visual Syslog Server for Windows has a live messages view: switches to a new received message. Helpful color highlighting. Useful message filtering. Customizable notification and actions. Sources hosted on the GitHub: https://github.com/MaxBelkov/visualsyslog
    Leader badge
    Downloads: 137 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next