Open Source Java Software

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

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  • 1
    Cool Reader

    Cool Reader

    A cross-platform XML/CSS based eBook reader

    CoolReader is fast and small cross-platform XML/CSS based eBook reader for desktops and handheld devices. Supported formats: FB2, TXT, RTF, DOC, TCR, HTML, EPUB, CHM, PDB, MOBI. Platforms: Win32, Linux, Android. Ported on some eInk based devices.
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    Downloads: 481 This Week
    Last Update:
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  • 2
    FreeWRL VRML/X3D browser
    FreeWRL is an Open Source, cross platform VRML2 and X3D compliant browser, with script, SAI and EAI support. Platforms supported: Linux and other Unix-style platforms; Mac OS/X; Windows. Support for mobile platforms (iOS, Android, QNX) is under development.
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    Downloads: 130 This Week
    Last Update:
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  • 3
    ASAP - Another Slight Atari Player
    ASAP (Another Slight Atari Player) plays and converts 8-bit Atari music (*.sap, *.cmc, *.mpt, *.rmt, *.tmc, ...) on modern computers and mobile devices.
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    Downloads: 36 This Week
    Last Update:
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  • 4
    BlueCove is a JSR-82 implementation on Java Standard Edition (J2SE) on BlueZ Linux, Mac OS X, WIDCOMM, BlueSoleil and Microsoft Bluetooth stack on WinXPsp2 and newer. Originally developed by Intel Research and currently maintained by volunteers.
    Downloads: 26 This Week
    Last Update:
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    Forever Free Full-Stack Observability | Grafana Cloud

    Our generous forever free tier includes the full platform, including the AI Assistant, for 3 users with 10k metrics, 50GB logs, and 50GB traces.

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  • 5
    db4o is the world's leading open source object database for Java and .NET. Leverage fast native object persistence, ACID transactions, query-by-example, S.O.D.A object query API, automatic class schema evolution, small size (http://developer.db4o.com)
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    Downloads: 37 This Week
    Last Update:
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  • 6
    DictionaryForMIDs

    DictionaryForMIDs

    Dictionary for Mobile Information Devices and PCs

    DictionaryForMIDs is an dictionary application for cell phones, tablets and PCs. The dictionary is completely installed on the device ("offline dictionary"), i.e. after installation there is no need for an internet connection. DictionaryForMIDs can be set up for any dictionary, for any language, or for any other lookup-purpose. The DfM-Creator tool is used to set up a dictionary for use with DictionaryForMIDs.
    Downloads: 21 This Week
    Last Update:
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  • 7
    GPS Datalogger Device Control
    i-Blue 747 / i-Blue 757 / Qstarz BT-Q1000 / i.Trek Z1 / Konet BGL-32 / Holux M-241 / ... control SW (for Java Phones, PalmOS, WinCe (PPC), Java platforms, Windows, Linux, and MacOS). Compatible with most MTK GPS Chipset based loggers.
    Downloads: 21 This Week
    Last Update:
    See Project
  • 8
    Mobile Open-Source Software and Tools

    Mobile Open-Source Software and Tools

    Android, UIQ 3.0, Series 60 Edition 5 open-source software

    Android, Symbian UIQ 3.0 and Symbian Series 60 Edition 5 open-source software, tools, libraries and themes. Most notable the FX-602P / FX-603P Simulator and the HP-45 Emulator are hosted here.
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    Downloads: 49 This Week
    Last Update:
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  • 9
    Luaj
    Lightweight, fast, Java-centric Lua interpreter written for JME and JSE, with string, table, package, math, io, os, debug, coroutine & luajava libraries, JSR-223 bindings, all metatags, weak tables and unique direct lua-to-java-bytecode compiling.
    Downloads: 9 This Week
    Last Update:
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  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

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    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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  • 10
    XiangQi Wizard (Chinese Chess Wizard) is a powerful XiangQi (chinese chess) program, which supports UCCI engines. XQWizard Light is the Mobile version for Windows CE and Java ME. ElephantEye is the UCCI engine in XQWizard with strong AI.
    Downloads: 14 This Week
    Last Update:
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  • 11
    jTarot is a tarot personal advisor. jTarot will do a "reading" for you when you need advice. A reading displays a number of cards and then describes what these cards mean. You take the reading and apply the meanings of the cards to your situation.
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    Downloads: 5 This Week
    Last Update:
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  • 12
    SquirrelJME

    SquirrelJME

    Java ME Compatible Environment

    SquirrelJME is intended to be a Java ME 8 compatible environment for strange and many other devices. The source is written in pure Java and is licensed under the GNU GPLv3+.
    Downloads: 9 This Week
    Last Update:
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  • 13

    sasplanetj

    Java-based SAS.Planet minimalist mobile client

    A java-based light version of SAS.Planet map/satellite navigation application. Developed to work on mobile devices (WinCE, LinuxMobile). Supports multiple geo data sources (Google, Yandex, OpenStreetMap, VirtualEarth, WikiMapia, etc.). Uses cache of SAS.Planet.
    Downloads: 9 This Week
    Last Update:
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  • 14
    Microlog is a small, yet powerful logging library for mobile devices based on the Log4j API. Supports Java ME (J2ME) and Android. Logs to device, to PC or to servers online. Used in all phases from development on emulator/device to outdoor field-testing.
    Downloads: 4 This Week
    Last Update:
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  • 15
    RSS Reader is a mobile J2ME (Java ME) app. that runs on Java enabled phones. User can store multiple RSS/ATOM feeds as bookmarks. Can import from OPLM file or HTML file with links. Can read offline. MIDP 2.0/some MIDP 1.0. Specify which MIDP w/issue
    Downloads: 4 This Week
    Last Update:
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  • 16
    A C#, C++, Delphi, ActiveX ,javascript and Java trace framework and a trace viewer: Tail, outputDebugString, event log, Log4J, Log4Net, Microsoft EIF support and Pocket PC development (C++ and .NET)
    Downloads: 5 This Week
    Last Update:
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  • 17
    Speech and Debate Timekeeper
    Timer for speech and debate competitions. Keeps track of speech order, time limits, and prep time for various debate formats (Policy, LD, Parliamentary, Public Forum, etc.) and individual events. Gives verbal and visual time signals.
    Downloads: 2 This Week
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  • 18
    A little framework for building 2d games in java
    Downloads: 3 This Week
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  • 19
    QMC Logic Minimizer

    QMC Logic Minimizer

    combinational logic functions minimization

    QMC Logic Minimizer is a versatile application for fast simplifying truth and reduce lines tables. This program offers a comfortable user interface for generating and minimizing of the combinational logic functions. It is unique for its possibility of minimizing several functions at the same time. This program is intended for practical digital devices constructors as well as formal scholars and academics. Features: - You can minimize up to 16 input variables and up to 16 output variables. - You can also reduce the number of table rows. - It allows you to name the input and output variables. - The table can be exported to HTML file and then you can use it in e.g. MS Word. - This program provides a comfortable interface, you can change fonts and colors. - It works on MS Windows, GNU/Linux, Mac OS.
    Downloads: 3 This Week
    Last Update:
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  • 20
    An application to provide a worldwide mobile secure/confidential payment system over the internet and other kinds of insecure/unreliable networks
    Downloads: 3 This Week
    Last Update:
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  • 21
    MicroZip

    MicroZip

    Create,extract and encrypt ZIP,GZIP,TAR,BZIP2,TAZ files on Java mobile

    MicroZip is a powerful file compression and encryption utility for mobile phones which allows you to create and extract compressed archives in multiple formats and encrypt sensitive information with powerful AES-256 encryption. MicroZip can create and extract ZIP,TAR,TGZ,TBZ2 archives and extract many other formats as JAR,GZ,BZ2,TBZ,WAR,BZIP2,GZIP,Z,TAZ,CBZ etc. MicroZip allows you to extract selected files without extracting the whole ZIP archive. MicroZip also supports encrypted ZIP archives with both classic ZIP encryption and AES 256 encryption algorithm.
    Downloads: 1 This Week
    Last Update:
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  • 22
    OSwiss

    OSwiss

    Program for tournament management.

    Tournament management software for various sports that uses swiss pairing system. Program invented for tournament organisers. It assists in managing events, calculates standings, ratings, supports printing and checking player cards. If something goes wrong during tournament, it is posibble also to enter pairings manually. Project is written in Java SE designed for PC and J2ME for mobile phones. DEAR USER If you are missing any features in this software, please open a ticket and describe them.
    Downloads: 2 This Week
    Last Update:
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  • 23
    OpenAPC

    OpenAPC

    An open process control and laser engraving software solution

    An extensive and multi-platform visualisation, process control and HMI application that supports many different devices via an open plug-in interface. Beside a visual GUI editor a debugger is part of the package.
    Downloads: 2 This Week
    Last Update:
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  • 24
    OpenAstrology is Java based Object-orientated implementation of Astrology. OpenAstrology will provide a platfrom to plug-in in the knowledge of Astrology and the derived solution will be the best real time Astrology solution
    Downloads: 2 This Week
    Last Update:
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  • 25
    PLEXIL (plan execution software)

    PLEXIL (plan execution software)

    Plan execution language and executive

    NOTE: Since 2022 this hosting of PLEXIL is deprecated. PLEXIL has moved to GitHub at https://github.com/plexil-group/plexil. Documentation is found at https://plexil-group.github.io/plexil_docs. Please use these new locations. PLEXIL is a plan execution language and technology developed by NASA and used in automation and autonomy applications at NASA and in the public sector. This software includes compilers for the language, the executive (runtime environment), and related tools. It runs on Unix-based computers, including macOS and Linux.
    Downloads: 2 This Week
    Last Update:
    See Project
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