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

  • Gemini 3 and 200+ AI Models on One Platform Icon
    Gemini 3 and 200+ AI Models on One Platform

    Access Google's best plus Claude, Llama, and Gemma. Fine-tune and deploy from one console.

    Build generative AI apps with Vertex AI. Switch between models without switching platforms.
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    MongoDB Atlas runs apps anywhere

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  • 1
    Xiaomi.eu Multilang MIUI ROMs

    Xiaomi.eu Multilang MIUI ROMs

    OFFICIAL mirror of MIUI Multilang ROM by https://xiaomi.eu/

    Included languages: English (en.miui.com, xiaomi.eu) Chinese (miui.com) Polish (Acid, miuipolska.pl) Slovak (ingbrzy, https://miuios.cz) Czech (VMach, https://miuios.cz) Bulgarian (Global) Hungarian (vagyula, miui.hu) French (Global) Swedish (Global) Russian (Global) Ukrainian (Global) Belorussian (Global) Croatian (Masva, MIUI Adria) Vietnamese (Belmont-Gabriel) Italian (miui.it) Greek (Global) Norwegian (Global) Dutch (cueie, mannyribo, redmaner) Spanish (nosijf982) Turkish (suatsari) Brazilian-Portuguese (Global, Feurrado, Lobianco) Portuguese (KcNirvana, Lippe35) Hebrew (Global) Romanian (ashtefan) German (muhamed89, cp82, dahool2016, and more) Catalan (deivids84) Korean (cjhyuky, bradly1, xiaomiqm) Slovenian (bostjan2016) Serbian (dudjaa) Thai (Global) Finnish (dogiex) Arabic (Global) Japanese (ScratchBuild) Burmese (Global) Danish (Global)
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    Downloads: 21,509 This Week
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  • 2
    Bulk Crap Uninstaller

    Bulk Crap Uninstaller

    Remove large amounts of unwanted applications quickly.

    Bulk Crap Uninstaller (in short BCUninstaller or BCU) is a free (as in speech and beer) bulk program uninstaller with advanced automation. It excels at removing large amounts of applications with minimal to no user input, while requiring next to no technical knowledge. It can detect most applications and games (even portable or not registered), clean up leftovers, force uninstall, automatically uninstall according to premade lists, and much more. Bulk Crap Uninstaller is licensed under Apache 2.0 open source license, and can be used in both private and commercial settings for free and with no obligations, as long as no conditions of the license are broken.
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    Downloads: 8,804 This Week
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  • 3
    99 Nights In The Forest Script [Keyless]

    99 Nights In The Forest Script [Keyless]

    99 Nights Script Keyless: Kill Aura, Auto Combat, Auto Craft, & more.

    This is Keyless Script work Only 99 Nights in The Forest Roblox Game. We tested the script using Xeno Executor, and it works perfectly. Therefore, for your convenience, the script comes with an injector that is perfectly suited for it. In this case, it is Xeno. In addition, this script does not require a key, so you can use it without any problems.
    Downloads: 8,019 This Week
    Last Update:
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  • 4
    log4cplus

    log4cplus

    Logging Framework for C++

    log4cplus is a simple to use C++ logging API providing thread-safe, flexible, and arbitrarily granular control over log management and configuration. It is modelled after the Java log4j API.
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    Downloads: 3,546 This Week
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    Try Google Cloud Risk-Free With $300 in Credit

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  • 5
    winPenPack

    winPenPack

    The portable software collection

    winPenPack is a project that aims at collecting the most frequently used and most popular open source applications made portable, so that they can be executed without installation from any USB Flash Drive or Hard Disk. The winPenPack suites offer a wide range of portable applications like office tools, internet tools, multimedia tools, development tools, security applications and other frequently used utilities. Everything you need, completely free, open source and portable!
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    Downloads: 522 This Week
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  • 6
    IPerf3-Windows

    IPerf3-Windows

    IPerf3 startup program for windows with GUI

    This is an iperf3 for windows GUI startup program, no need to install. Just run it directly. Supports two startup services: iperf3 server and client.
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    Downloads: 665 This Week
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  • 7
    VertrigoServ WAMP

    VertrigoServ WAMP

    Complete WAMP Server - PHP Apache MySQL for Windows.

    VertrigoServ is a complete free WAMP server allowing PHP development for Windows. It installs Apache 2.4, PHP, MySQL and PhpMyAdmin, both installing and setting up the environment. An uninstaller allows you to remove Vertrigo from hard disc. Vertrigo is a freeware compilation of free software (under GPL, Apache License). Main aplication has closed source code. For license details please take a look at every single component terms and conditions.
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    Downloads: 109 This Week
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  • 8

    JasperStarter

    Running JasperReports from command line

    JasperStarter is a command line launcher and batch compiler for JasperReports.
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    Downloads: 121 This Week
    Last Update:
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  • 9
    fake lezard  ByFL nitrogen MI MAX 3 roms
    ROMS From Fake Lezard on nitrogen Alias (ByFL) ROM for Xiaomi MI MAX 3 Stable and Fast Android 11 to 16 ports for nitrogen. Custom Snake/Neo Kernel optimized for performance. Cleaned system and vendor partitions (ByFL). Includes essential tools (Mi Flash, Drivers, Recovery).
    Downloads: 281 This Week
    Last Update:
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  • 8 Monitoring Tools in One APM. Install in 5 Minutes. Icon
    8 Monitoring Tools in One APM. Install in 5 Minutes.

    Errors, performance, logs, uptime, hosts, anomalies, dashboards, and check-ins. One interface.

    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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  • 10
    CacheGuard Gateway

    CacheGuard Gateway

    CacheGuard Gateway is a UTM, a WAF, and a QoS management appliance.

    CacheGuard Gateway is a free and open-source Unified Threat Management (UTM) solution, a Web Application Firewall (WAF), and a Quality of Service (QoS) platform designed to optimize WAN traffic. To obtain a CacheGuard Gateway appliance, download CacheGuard-OS and install it on the bare-metal or virtual machine of your choice. It’s that simple and completely free. The UTM includes a firewall, web antivirus, VPN server, and a URL-filtering and SSL-inspection web proxy. The WAF operates in conjunction with a reverse proxy, web application load balancer, and SSL offloader, and is capable of blocking malicious requests as well as traffic from IP addresses with poor reputations. The QoS manager enables traffic shaping to prioritize critical network flows, load balance multiple WAN links, and cache web traffic.
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    Downloads: 97 This Week
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  • 11
    ChibiOS/RT free embedded RTOS
    ChibiOS/RT is a free and efficient RTOS designed for deeply embedded applications. It offers a comprehensive set of kernel primitives and supports many architectures: ARM7, Cortex-M0, Cortex-M3, Cortex-M4, PowerPC e200z, STM8, AVR, MSP430, ColdFire, H8S, x86.
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    Downloads: 72 This Week
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  • 12
    <<Hack|Track GNU/Linux

    <<Hack|Track GNU/Linux

    Distro Penetrasing Live System Burn to USB Flash Disk & Run.

    <<Hack|Track GNU/Linux is an open source operating system developed by the HTGL Project from Indonesia which provides penetration testing.
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    Downloads: 99 This Week
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  • 13
    Random File Picker

    Random File Picker

    Choose (and open) random files from random directories.

    Random File Picker can quickly choose and open random files from a set of directories. Files can be filtered so you can for example look only for images. The directories that you supply to RFP will be scanned for sub-directories (first a directory is chosen, then a file from it). In short it is a tool that makes decisions in your place. Not sure what wallpaper to choose for today? Let it decide for you. Not sure what movie to watch? It can open a random one in just a few clicks.
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    Downloads: 39 This Week
    Last Update:
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  • 14
    emqx

    emqx

    The Most Scalable MQTT Broker for IoT

    EMQX is the world's most scalable and reliable MQTT Broker designed by EMQ. It supports 100M concurrent IoT device connections per cluster while maintaining extremely high throughput and sub-millisecond latency. EMQX boasts more than 20,000 global users from over 50 countries, connecting more than 100M IoT devices worldwide, and is trusted by over 300 customers in mission-critical IoT scenarios, including well-known brands like HPE, VMware, Verifone, SAIC Volkswagen and Ericsson. Flex to meet the demands of various industries towards digital transformation, including Connected Vehicles, Industrial IoT, Oil & Gas, Carrier, Finance, Smart Energy, and Smart Cities.
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    Downloads: 89 This Week
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  • 15
    Repeat

    Repeat

    Mouse/keyboard record/replay and automation hotkeys/macros creation

    Full-fledged mouse/keyboard record/replay and automation hotkeys/macros creation using modern programming languages, and more advanced automation features. Working across three major OSes: Windows, OSX, and Linux. See more at https://github.com/repeats/Repeat Repeat yourself with some intelligence. This, if used correctly, can improve your productivity greatly.
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    Downloads: 58 This Week
    Last Update:
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  • 16
    The archive-crawler project is building Heritrix: a flexible, extensible, robust, and scalable web crawler capable of fetching, archiving, and analyzing the full diversity and breadth of internet-accesible content.
    Downloads: 8 This Week
    Last Update:
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  • 17
    SulinOS

    SulinOS

    Indipendent distro uses inary package system. Sulin is roolling donkey

    Sulin is rolling donkey Gitlab: https://gitlab.com/sulinos Github: https://github.com/sulinos Telegram: https://t.me/sulinos powered by donkey team
    Downloads: 45 This Week
    Last Update:
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  • 18
    ModSecurity is a web application firewall that can work either embedded or as a reverse proxy. It provides protection from a range of attacks against web applications and allows for HTTP traffic monitoring, logging and real-time analysis.
    Downloads: 7 This Week
    Last Update:
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  • 19
    KeyTik: The All-in-One Automation Tool

    KeyTik: The All-in-One Automation Tool

    A Powerful Multi-Profile Key Mapper, Clicker, Macro, and More

    KeyTik is a Python program that uses AutoHotkey to handle many things, including a powerful key mapper and various macros such as clickers and more. It comes with comprehensive key support including ASCII, ANSI, Unicode, Scan Code, Virtual Keyboard Code, and more. KeyTik is also packed with features like Bind to Programs and Devices, Assign Shortcuts, Text Format, Hold Format, and more. KeyTik Pro is available with more feature for $20. Take 25% Off for 10 people only. Check out https://fajarrahmadjaya.gumroad.com/l/keytik-pro/KeyTikPro25 to get the discount. (7 Person Left) Get the discount before its gone! Note : For installation, check it out at our website: https://keytik.com/download/#installation
    Downloads: 22 This Week
    Last Update:
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  • 20
    myrtille

    myrtille

    A native HTML4 / HTML5 Remote Desktop Protocol client

    Myrtille is a simple way to connect remote desktops and applications from a native web browser, without plugin, extension or configuration. For the end user, there is just need for a browser. Server side, it uses the .NET (C#) framework and the RDP protocol through an HTTP(S) gateway. It's very comparable to Guacamole (https://github.com/glyptodon) or FreeRDP-WebConnect (https://github.com/FreeRDP/FreeRDP-WebConnect), except it uses the Microsoft .NET (C#) technologies for a better integration with the Remote Desktop Services (RDS) layer. It also support HTML4, in addition to HTML5, for backward compatibility.
    Downloads: 35 This Week
    Last Update:
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  • 21
    Argon Network Switcher

    Argon Network Switcher

    Manage multiple networks configuration in Win XP/ Win 7/Win 8.1.

    Argon is an open source utility with the aim to supply multiple network configuration in Windows XP, Windows 7 and Windows 8. It's usefully when you move your notebook from a network to others. For each network you can select the network card to use and store configuration as "profile". For each profile you can configure many things as: Network card configuration, Proxy configuration, A set of application to run when the profile start, A set of windows services to start or to stop, Set the default printer, Map the necessary network drive, Disable network cards, Enable/disable network card.
    Downloads: 9 This Week
    Last Update:
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  • 22
    Legacy Launcher

    Legacy Launcher

    Legacy Launcher for Android

    Legacy Launcher for Android is a free open-source replacement home screen application. It is built on top of the last version of ADW Launcher Free (from the open-source Cyanogenmod 7 branch), and most of the functionality comes from there. It is compatible with Android 2.1 to Android 2.3.7.
    Downloads: 26 This Week
    Last Update:
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  • 23
    OpenUEM

    OpenUEM

    Manage your IT assets thanks to its agents and a clean and concise UI

    OpenUEM is an open-source inventory tool that allows you to manage your IT assets thanks to its agents and a clean and concise web user interface. OpenUEM is based on open-source or free tools that are battle-tested to avoid re-inventing the wheel. It allows you to keep track of your IT assets using agents installed on your Windows, Linux (Debian and RedHat based distributions) and MacOS endpoints and provides features like remote file browsing, getting Windows Update and Antivirus status, deploying software via WinGet/Flatpak/Brew, remote assistance with VNC or RDP… OpenUEM server components can be installed in a humble desktop machine with Windows 10 Home, Debian/Ubuntu Linux or any Docker powered environment. If you run a medium-sized or large company, you can use beefier machines and share the load as it has been designed to have distributed components. It can be classified too as a Remote Monitoring and Managing (RMM) or as a Unified Endpoint Management (UEM) tool.
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    Downloads: 25 This Week
    Last Update:
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  • 24
    SQLProcexp by Fabien Sabinet

    SQLProcexp by Fabien Sabinet

    SQL Server instance monitoring & protection

    SQL Server instance monitoring. A free professional monitoring application for SQL Server instance with historical data of : - CPU - logical read - physical read - write - SQL Queries - Wait Time - Signal wait - 1 user configurable list of waits - and 1 SQL Query preconfigured with number of users sessions Based on capture at configurable interval (2 secondes by default) of sys.sysprocesses, sys.dm_exec_requests, sys.dm_exec_sessions, sys.dm_os_wait_stats and sys.dm_exec_query_stats. Added new network protection anti-intrusion system, after a number of trying to connect via RDP or SQL the IP is BL in the FW Added new auto update Windows application Added new analysis of IP traffic (should not stay on as it's consuming some network band) No installation needed, it’s a simple small standalone c# .NET x86 executable file Sorry not open source, don't want it to be used at all or as part for commercial purpose... FREE I said !
    Downloads: 20 This Week
    Last Update:
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  • 25
    LocalServer

    LocalServer

    LocalServer is a Web Server software for windows

    LocalServer is a Web Server software for Windows that allows you to make your Computer into a Web Server Locally in which there is the Apache Server, PHP, and MySQL Server, which has been summarized in a single container setup.exe. The advantages of this software is Free except you do not need to advance other similar software, which is installed by default on your computer, because the Apache Server and MySQL Server will be installed on LocalServer first time on a different port, the Apache server running on port 4008 and MySQL Server running on port 3308. The latest version has been on the Release of version 1.0.1 that is made on the date of 26-10-2012, which has been running stable on Windows devices with the addition of the mail server that Mercury mail. Hopefully LocalServer useful for you to use, and congratulations creative with LocalServer Thank you!
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    Downloads: 6 This Week
    Last Update:
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