C System Software

View 2011 business solutions
System C Clear Filters

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

  • 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
  • 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
    Ventoy

    Ventoy

    A New Bootable USB Solution

    Ventoy is an open source tool to create bootable USB drive for ISO/WIM/IMG/VHD(x)/EFI files. With Ventoy, you don't need to format the disk over and over, you just need to copy the ISO/WIM/IMG/VHD(x)/EFI files to the USB drive and boot them directly. You can copy many files at a time and Ventoy will give you a boot menu to select them. You can also browse ISO/WIM/IMG/VHD(x)/EFI files in local disks and boot them. x86 Legacy BIOS, IA32 UEFI, x86_64 UEFI, ARM64 UEFI and MIPS64EL UEFI are supported in the same way. Most types of OS supported (Windows/WinPE/Linux/ChromeOS/Unix/VMware/Xen...) 1100+ ISO files are tested, 90%+ distros in distrowatch.com supported.
    Leader badge
    Downloads: 208,285 This Week
    Last Update:
    See Project
  • 2
    ImmortalWrt

    ImmortalWrt

    An opensource OpenWrt variant for mainland China users.

    ImmortalWrt is a fork of OpenWrt, with more packages ported, more devices supported, default optimized profiles and localization modifications for mainland China users. Compared to upstream, we allow to use (non-upstreamable) modifications/hacks to provide better feature/performance/support. Default login address: http://192.168.1.1 or http://immortalwrt.lan, username: root, password: none.
    Leader badge
    Downloads: 373,306 This Week
    Last Update:
    See Project
  • 3
    TurboVNC

    TurboVNC

    High-speed, 3D-friendly, TightVNC-compatible remote desktop software

    TurboVNC is a high-performance, enterprise-quality version of VNC based on TightVNC, TigerVNC, and X.org. It contains a variant of Tight encoding that is tuned for maximum performance and compression with 3D applications (VirtualGL), video, and other image-intensive workloads. TurboVNC, in combination with VirtualGL, provides a complete solution for remotely displaying 3D applications with interactive performance. TurboVNC's high-speed encoding methods have been adopted by TigerVNC and libvncserver, and TurboVNC is also compatible with any other TightVNC derivative. TurboVNC forked from TightVNC in 2004 and still covers all of the TightVNC 1.3.x features, but TurboVNC contains numerous feature enhancements and bug fixes relative to TightVNC, and it compresses 3D and video workloads much better than TightVNC while using generally only 5-20% of the CPU time of the latter. Using non-default settings, TurboVNC can also be made to compress 2D workloads as "tightly" as TightVNC.
    Leader badge
    Downloads: 133,153 This Week
    Last Update:
    See Project
  • 4

    Info-ZIP project

    Info-ZIP portable compression/archiver utilities

    Info-ZIP portable compression/archiver utilities (Zip, UnZip, WiZ, etc.)
    Leader badge
    Downloads: 120,159 This Week
    Last Update:
    See Project
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB 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.
    Start Free
  • 5
    NSIS: Nullsoft Scriptable Install System

    NSIS: Nullsoft Scriptable Install System

    Windows installer development tool

    NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows installers. It is designed to be as small and flexible as possible and is therefore very suitable for internet distribution. Being a user's first experience with your product, a stable and reliable installer is an important component of succesful software. With NSIS you can create such installers that are capable of doing everything that is needed to setup your software. NSIS is script-based and allows you to create the logic to handle even the most complex installation tasks. Many plug-ins and scripts are already available: you can create web installers, communicate with Windows and other software components, install or update shared components and more.
    Leader badge
    Downloads: 47,891 This Week
    Last Update:
    See Project
  • 6
    7-Zip

    7-Zip

    A free file archiver for extremely high compression

    7-Zip is a file archiver with a high compression ratio. 7-Zip works in Windows 11 / 10 / 8 / 7 / Vista / XP / 2022 / 2019 / 2016 / 2012 / 2008 / 2003 / 2000. You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip. And there is command line version for Linux and macOS. Most of the source code is under the GNU LGPL license. The unRAR code is under a mixed license with GNU LGPL + unRAR restrictions. Check the license for details.
    Leader badge
    Downloads: 21,708 This Week
    Last Update:
    See Project
  • 7
    Library and command line tools for XZ and LZMA compressed files
    Leader badge
    Downloads: 76,311 This Week
    Last Update:
    See Project
  • 8
    net-snmp
    Net-SNMP provides tools and libraries relating to the Simple Network Management Protocol including: An extensible agent, an SNMP library, tools to request or set information from SNMP agents, tools to generate and handle SNMP traps, etc.
    Leader badge
    Downloads: 21,428 This Week
    Last Update:
    See Project
  • 9

    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: 21,628 This Week
    Last Update:
    See Project
  • $300 Free Credits to Build on Google Cloud Icon
    $300 Free Credits to Build on Google Cloud

    New to Google Cloud? Get $300 in credits to explore Compute Engine, BigQuery, Cloud Run, Gemini Enterprise Agent Platform, and more.

    Start your next project with $300 in free Google Cloud credit. Spin up VMs, run containers, query petabytes in BigQuery, or build agents with Gemini Enterprise Agent Platform. Once your credits are used, keep building with 20+ always-free tier products including Compute Engine, Cloud Storage, GKE, and Cloud Run functions. No commitment required—just sign up and start building.
    Claim $300 Free
  • 10
    Process Hacker

    Process Hacker

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

    Process Hacker 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: 16,614 This Week
    Last Update:
    See Project
  • 11
    Comgt is a command line tool for controlling, configuring and interacting with Option Wireless 3G and 2G ( HSDPA, UMTS, EDGE, GPRS, GSM) data devices within the Linux environment.
    Leader badge
    Downloads: 19,289 This Week
    Last Update:
    See Project
  • 12
    Tools and patches for the Linux Diskquota system as part of the Linux kernel
    Leader badge
    Downloads: 16,457 This Week
    Last Update:
    See Project
  • 13
    Asuswrt-Merlin

    Asuswrt-Merlin

    Alternative firmware for Asus wireless routers

    Asuswrt-Merlin is a third party firmware for select Asus wireless routers. Based on the Asuswrt firmware developed by Asus, it brings tweaks, new features and other improvements to the original firmware, while retaining its performance and ease of use. Note that only downloads are hosted on SF.net - the complete source code can be found on https://github.com/RMerl/asuswrt-merlin (legacy 380.xx) and https://github.com/RMerl/asuswrt-merlin.ng (382 and newer releases).
    Leader badge
    Downloads: 8,974 This Week
    Last Update:
    See Project
  • 14
    The goal of the project is now to develop a user library called libpfm4 to help setup performance events for use with the perf_events Linux kernel interface. The development of the perfmon kernel subsystem, libpfm and pfmon has now stopped.
    Leader badge
    Downloads: 14,878 This Week
    Last Update:
    See Project
  • 15
    Drivers and tools to support ATM networking under Linux. Eventually this will also include support for some types of DSL modems.
    Leader badge
    Downloads: 51,404 This Week
    Last Update:
    See Project
  • 16
    hdparm - get/set ATA/SATA drive parameters under Linux
    Leader badge
    Downloads: 8,770 This Week
    Last Update:
    See Project
  • 17
    Expect is a tool for automating interactive applications such as telnet, ftp, passwd, fsck, rlogin, tip, etc. Expect is also useful for testing these same applications.
    Leader badge
    Downloads: 8,618 This Week
    Last Update:
    See Project
  • 18
    Winlator

    Winlator

    Android application for running Windows applications with Wine

    A software that enables users to run Windows applications on Android devices, providing an emulation layer that supports various Windows applications and games.
    Downloads: 1,393 This Week
    Last Update:
    See Project
  • 19
    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: 7,419 This Week
    Last Update:
    See Project
  • 20
    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: 6,150 This Week
    Last Update:
    See Project
  • 21
    Barrier

    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.
    Downloads: 1,136 This Week
    Last Update:
    See Project
  • 22
    LAME (Lame Aint an MP3 Encoder)

    LAME (Lame Aint an MP3 Encoder)

    A high quality MP3 encoder

    LAME is an educational tool to be used for learning about MP3 encoding. The goal of the LAME project is to improve the psycho acoustics, quality and speed of MP3 encoding. Note: we provide source code only!
    Leader badge
    Downloads: 29,500 This Week
    Last Update:
    See Project
  • 23
    deepin
    deepin is a Debian-based distribution that aims to provide an elegant, user-friendly and reliable operating system. It does not only include the best the open source world has to offer, but it has also created its own desktop environment called DDE or Deepin Desktop Environment which is based on the Qt 5 toolkit. Deepin focuses much of its attention on intuitive design. Its home-grown applications, like Deepin Software Centre, DMusic and DPlayer are tailored to the average user. Being easy to install and use, deepin can be a good Windows alternative for office and home use.
    Leader badge
    Downloads: 5,039 This Week
    Last Update:
    See Project
  • 24
    rEFInd

    rEFInd

    An EFI boot manager utility

    rEFInd is a fork of the rEFIt boot manager. Like rEFIt, rEFInd can auto-detect your installed EFI boot loaders and it presents a pretty GUI menu of boot options. rEFInd goes beyond rEFIt in that rEFInd better handles systems with many boot loaders, gives better control over the boot loader search process, and provides the ability for users to define their own boot loader entries.
    Leader badge
    Downloads: 4,766 This Week
    Last Update:
    See Project
  • 25
    vJoy
    This project was originally designed to provide an open-source replacement for PPJoy. The product, at this point, consists of virtual joystick devices that is seen by the system as a standard joystick but its position-data is written to it by a feeder application. An existing feeder application that takes advantage of this product is SmartPropoPlus. If you are an application writer you can very easily write an application that controls a joystick (e.g. mouse-to-joystick, keyboard-to-joystick). If you are a beginner in device drivers you can take this code and enhance it to support more (or less) axes, buttons or POVs.
    Leader badge
    Downloads: 6,364 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next