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

  • Auth0 for AI Agents now in GA Icon
    Auth0 for AI Agents now in GA

    Ready to implement AI with confidence (without sacrificing security)?

    Connect your AI agents to apps and data more securely, give users control over the actions AI agents can perform and the data they can access, and enable human confirmation for critical agent actions.
    Start building today
  • Cloud data warehouse to power your data-driven innovation Icon
    Cloud data warehouse to power your data-driven innovation

    BigQuery is a serverless and cost-effective enterprise data warehouse that works across clouds and scales with your data.

    BigQuery Studio provides a single, unified interface for all data practitioners of various coding skills to simplify analytics workflows from data ingestion and preparation to data exploration and visualization to ML model creation and use. It also allows you to use simple SQL to access Vertex AI foundational models directly inside BigQuery for text processing tasks, such as sentiment analysis, entity extraction, and many more without having to deal with specialized models.
    Try for free
  • 1
    Neko Project II for Android

    Neko Project II for Android

    PC-98 emulator for Android phones

    This project is based on sources, published by someone with nickname sawada, who used code of Neko Project II. Help and suggestions are welcome.
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    Downloads: 57 This Week
    Last Update:
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  • 2
    The Neverhood Restoration
    Be warned this project was discontinued in 2013 and has not been updated in years.
    Downloads: 48 This Week
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  • 3
    GameBoid

    GameBoid

    Gameboy Advance emulator for Android phones

    This project is based on sources published by original GameBoid developer, who in turn used code of gpSP2X, based on gpSP. Help and suggestions are welcome. This project is abandoned in favor of RetroArch: http://www.libretro.com/. Seriously, check that one out!
    Downloads: 35 This Week
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  • 4
    LocoNet over TCP
    Client-server based software that talks to Digitrax LocoNet. TCP server talks through a hardware interface (e.g. LocoBuffer) to LocoNet. (User interface) clients talk to that server.
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    Downloads: 33 This Week
    Last Update:
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  • Smart Business Texting that Generates Pipeline Icon
    Smart Business Texting that Generates Pipeline

    Create and convert pipeline at scale through industry leading SMS campaigns, automation, and conversation management.

    TextUs is the leading text messaging service provider for businesses that want to engage in real-time conversations with customers, leads, employees and candidates. Text messaging is one of the most engaging ways to communicate with customers, candidates, employees and leads. 1:1, two-way messaging encourages response and engagement. Text messages help teams get 10x the response rate over phone and email. Business text messaging has become a more viable form of communication than traditional mediums. The TextUs user experience is intentionally designed to resemble the familiar SMS inbox, allowing users to easily manage contacts, conversations, and campaigns. Work right from your desktop with the TextUs web app or use the Chrome extension alongside your ATS or CRM. Leverage the mobile app for on-the-go sending and responding.
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  • 5
    JStella is a Java-based Atari 2600 VCS emulator. It allows one to play old Atari 2600 games in an operating system independent manner. It also supports web page based applets. Its emulation core is based on Stella-Atari 2600 Emulator.
    Downloads: 5 This Week
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  • 6
    MobileZX is a 48k ZX Spectrum emulator for mobile devices with support for J2ME MIDP2.0. It is oriented to devices such as PDAs and mobile phones.
    Downloads: 2 This Week
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  • 7

    DELauncher

    A Duke Nukem 3D Mod Launcher designed to run with the Eduke32 Port

    A Duke Nukem 3D Mod Launcher designed to run with the Eduke32 Port written in Java Language.
    Downloads: 4 This Week
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  • 8
    Minecraft (Linux)

    Minecraft (Linux)

    Minecraft launcher

    Downloads: 3 This Week
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  • 9
    DB Web Admin Provides access to your databases through a web interface. It gives users visibility into their SQL Server database instances. DBWA shows users Currently running SQL Queries, Historic Queries, and Fragmented Indexes. DBWA also allows users to kill currently running queries or run their own SQL queries. DBWA is implemented in ASP.NET MVC using C#. Previous Versions supported Oracle(PL/SQL and JSP), MS SQLServer (ASP), and MySQL/ODBC (C#.NET) versions.
    Downloads: 2 This Week
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  • Accounts Payable Software | AvidXchange Icon
    Accounts Payable Software | AvidXchange

    AvidXchange is an Industry Leader in AP Automation Software for Middle Market Businesses.

    Drive greater business success by automating the accounts payable process to boost efficiency, accuracy and speed in the processing of invoices and payments.
    Learn More
  • 10
    XLattice is a communications infrastructure for server-assisted peer-to-peer networks. Initial implementation is Java (and so platform-independent) with C/C++ for Linux and then Windows to follow.
    Downloads: 2 This Week
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  • 11

    DNS Launcher 2

    DNS Launcher is a improved installer/launcher for the DNS TechPack

    DNS Launcher is a improved installer/manager for the DNS TechPack for minecraft, it gives you the ability to customize and install the modpack quickly and easily for you, giving you complete control of what you do and don't install.
    Downloads: 1 This Week
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  • 12
    A small save synchronization and backup utility for Minecraft. Currently Windows-only.
    Downloads: 1 This Week
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  • 13
    A client/server architecture to allow the creation and playing of a configurable "Connect Four" like game.
    Downloads: 0 This Week
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  • 14
    BTLib package is a J2ME Bluetooth library usefull when developing applications for Java, Bluetooth enabled mobile devices. The other packages are individual applications utilizing BTLib. You can download any of them and run it in your mobile device.
    Downloads: 0 This Week
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  • 15
    This is a java version of the famous fortune game from BSD. I am writing this program in java so that people can have a platform independent version of this great utility. I am also hoping to add some features and make jfortune fun to use.
    Downloads: 0 This Week
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  • 16
    Keyboarding Master

    Keyboarding Master

    A unified configuration environment for device drivers.

    Project has been moved to bitbucket: https://bitbucket.org/monkygames/keyboarding-master The keyboard master provides its users with the ability to custom configure their input devices for specific applications within a unified configuration environment. The main unique feature for input devices is the keymap concept. Each application can utilize 8 unique keymaps in which the user can toggle through via user assigned shortcuts. This enables a user to maintain a more ergonomic hand position when one hand is required for other duties such as mouse or tablet.
    Downloads: 0 This Week
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  • 17
    Moonbeam is a xml socket server written in java. It’s primary use is targeted on building multi user applications - anything that reaches from chat rooms, over games to instant messengers.
    Downloads: 0 This Week
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  • 18
    简单的Java语言版Flash多人游戏服务器 主要实现如下功能: 1) NIO Socket通信 2) 简单内存数据库管理 3) 消息管理 4) 数据库连接池 5) 启动加载管理 6) 游戏组件管理 7) 数据包管理
    Downloads: 0 This Week
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  • 19
    RedDwarf is a horizontally scalable application server for low latency apps such as online games, virtual worlds, and social networking applications. It is the official community fork for Project Darkstar, previously sponsored by Sun Microsystems.
    Downloads: 0 This Week
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  • 20
    Romeo - MAME Frontend
    Downloads: 0 This Week
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  • 21
    SoramineLauncher
    Launcher Officiel du Serveur Minecraft Soramine
    Downloads: 0 This Week
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  • 22
    SuperLauncher is an alternative launcher for Minecraft
    Downloads: 0 This Week
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  • 23
    Microdigital TK2000 II Color Computer emulator.
    Downloads: 0 This Week
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  • 24

    Technic Mac OS X Launcher Fix

    A fix for minecraft, for the OS X launcher

    This launcher has been modified to allow use of minecraft again since a patch went in that messed up the graphics rendering in the old Technic launcher.
    Downloads: 0 This Week
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  • 25
    TicTacToe NotSoDeluxe

    TicTacToe NotSoDeluxe

    A Java Tic Tac Toe Game

    A Java Tic Tac Toe Game that runs in console window/command prompt. Source included.
    Downloads: 0 This Week
    Last Update:
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