Open Source Java Software - Page 5

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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
    AndroidIDE

    AndroidIDE

    AndroidIDE is an IDE for Android to develop full featured Android apps

    An IDE to develop real, Gradle-based Android applications on Android devices.
    Downloads: 112 This Week
    Last Update:
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  • 2
    Jmol

    Jmol

    An interactive viewer for three-dimensional chemical structures.

    Over 1,000,000 page views per month. Jmol/JSmol is a molecular viewer for 3D chemical structures that runs in four independent modes: an HTML5-only web application utilizing jQuery, a Java applet, a stand-alone Java program (Jmol.jar), and a "headless" server-side component (JmolData.jar). Jmol can read many file types, including PDB, CIF, SDF, MOL, PyMOL PSE files, and Spartan files, as well as output from Gaussian, GAMESS, MOPAC, VASP, CRYSTAL, CASTEP, QuantumEspresso, VMD, and many other quantum chemistry programs. Files can be transferred directly from several databases, including RCSB, EDS, NCI, PubChem, and MaterialsProject. Multiple files can be loaded and compared. A rich scripting language and a well-developed web API allow easy customization of the user interface. Features include interactive animation and linear morphing. Jmol interfaces well with JSpecView for spectroscopy, JSME for 2D->3D conversion, POV-Ray for images, and CAD programs for 3D printing (VRML export).
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    Downloads: 520 This Week
    Last Update:
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  • 3
    Toolbox for Java/JTOpen
    This project has been moved to github: https://github.com/IBM/JTOpen. The IBM Toolbox for Java / JTOpen is a library of Java classes supporting the client/server and internet programming models to a system running OS/400, i5/OS, or IBM i. JTOpenLite is a set of lightweight Java classes suitable for use on mobile devices. It provides Java application access to IBM i: DDM access, basic JDBC access, command call, program call access, etc. Packages are delivered by following PTF on IBM i platform: 5770SS1 V7R5M0 SI82443 5770SS1 V7R4M0 SI82444 5770SS1 V7R3M0 SI82445 The latest version is JTopen 11.2, released 7 March 2023.
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    Downloads: 654 This Week
    Last Update:
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  • 4
    Violet UML Editor
    Violet is a UML editor with these benefits: Very easy to learn and use. Draws nice-looking diagrams. Completely free. Cross-platform. Violet is intended for developers, students, teachers, and authors who need to produce simple UML diagrams quickly. Want to contribute ? Source code is hosted on github : https://github.com/violetumleditor/violetumleditor
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    Downloads: 551 This Week
    Last Update:
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  • 5
    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: 512 This Week
    Last Update:
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  • 6
    VirtualSatellite

    VirtualSatellite

    Virtual Satellite

    Virtual Satellite is a DLR open source software for model based systems engineering MBSE. One of the major features of Virtual Satellite is the modular data model, that can be easily customized to your personal needs. Today, there are already various different versions: - Virtual Satellite 4 - Core is the entry point to start developing and the basis for all other versions - Virtual Satellite 4 - CEF is a specialized version for the use in our Concurrent Engineering Facility - Virtual Satellite 4 - FDIR is a research version for Failure Detection, Isolation and Recovery - Virtual Satellite 4 - DEV IDE is a spezial Eclipse IDE for easy and fast VIrtual Satellite development. This project contains the deployed artefacts from the Virtual Satellite Eco-System. Donwnloads for Virtual Satellite 4 Core are also provided. The artefacts contain p2 builds for: - Daily development builds - Regular integration builds - Specific release builds
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    Downloads: 1,485 This Week
    Last Update:
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  • 7
    Robocode

    Robocode

    Robocode is a programming tank game for Java

    Robocode is a programming game, where the goal is to develop a robot battle tank to battle against other tanks with Java. The robot battles are running in real-time and on-screen. The motto of Robocode is: Build the best, destroy the rest!
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    Downloads: 464 This Week
    Last Update:
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  • 8
    Pentaho Data Integration

    Pentaho Data Integration

    Pentaho Data Integration ( ETL ) a.k.a Kettle

    Pentaho Data Integration uses the Maven framework. Project distribution archive is produced under the assemblies module. Core implementation, database dialog, user interface, PDI engine, PDI engine extensions, PDI core plugins, and integration tests. Maven, version 3+, and Java JDK 1.8 are requisites. Use of the Pentaho checkstyle format (via mvn checkstyle:check and reviewing the report) and developing working Unit Tests helps to ensure that pull requests for bugs and improvements are processed quickly. In addition to the unit tests, there are integration tests that test cross-module operation.
    Downloads: 98 This Week
    Last Update:
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  • 9
    TuxGuitar
    TuxGuitar is a multitrack guitar tablature editor and player written in Java-SWT, It can open GuitarPro, PowerTab and TablEdit files.
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    Downloads: 472 This Week
    Last Update:
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  • 10
    FrostWire

    FrostWire

    Search, Download, Play, Share on Bittorrent and the cloud

    FrostWire https://www.frostwire.com/ is a media player, Video Downloader and Peer to Peer (P2P) information sharing client for the BitTorrent network. This project is not affiliated with LimeWire LLC. FrostWires' source code is Licensed under the GNU GPL and Apache Open Source licenses. System Requirements Any of the following operating systems: ● Windows 10, 8, 7, Vista for Intel processors (64-bit only) ● Mac OS X 10.11 (El Capitan) or later (64-bit) ● Linux, Unix such as Solaris (64-bit) ● Android 7.0 or later 256 MB of RAM (512 MB Recommended) An active internet connection
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    Downloads: 562 This Week
    Last Update:
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  • 11
    This project aims to offer a simple cross-platform application for cropping PDF files. A simple user interface lets you define exactly the crop-region by fitting a rectangle on the visually overlaid pages.
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    Downloads: 410 This Week
    Last Update:
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  • 12
    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: 424 This Week
    Last Update:
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  • 13
    VulkanMod

    VulkanMod

    Vulkan renderer mod for Minecraft

    This is a fabric mod that introduces a brand new Vulkan-based voxel rendering engine to Minecraft Java in order to both replace the default OpenGL renderer and bring performance improvements.
    Downloads: 93 This Week
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  • 14
    JFreeChart
    JFreeChart is a free (LGPL) chart library for the Java(tm) platform. It supports bar charts, pie charts, line charts, time series charts, scatter plots, histograms, simple Gantt charts, Pareto charts, bubble plots, dials, thermometers and more. *** JFreeChart has moved to GitHub: https://github.com/jfree/jfreechart ***
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    Downloads: 405 This Week
    Last Update:
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  • 15
    TightVNC
    TightVNC is an improved version of VNC, great free remote-desktop tool. The improvements include bandwidth-friendly "Tight" encoding, file transfers in the Windows version, enhanced GUI, many bugfixes, and more.
    Leader badge
    Downloads: 463 This Week
    Last Update:
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  • 16
    FernFlower

    FernFlower

    Decompiler from Java bytecode to Java, used in IntelliJ IDEA

    Fernflower is an open-source Java decompiler originally developed by JetBrains that takes compiled Java bytecode and reconstructs readable source code, helping developers understand, debug, and recover lost Java code from .class files. It works by analyzing the structure of bytecode and inferring higher-level constructs like loops, conditionals, generics, and exception handling to produce Java source that is as close as possible to what a human would have written, making it useful for both reverse engineering and educational purposes. Fernflower is integrated into popular Java IDEs and tools where decompilation is needed, and its robust analysis handles a wide range of language features introduced across multiple Java versions. Because it outputs clean, structured, and often compilable code, developers use it for auditing binaries, exploring third-party libraries without source, and recovering parts of legacy systems where source was lost or unavailable.
    Downloads: 90 This Week
    Last Update:
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  • 17
    Suwayomi-Server

    Suwayomi-Server

    A rewrite of Tachiyomi for the Desktop

    A free and open source manga reader server that runs extensions built for Tachiyomi. Suwayomi is an independent Tachiyomi compatible software and is not a Fork of Tachiyomi. Suwayomi-Server is as multi-platform as you can get. Any platform that runs java and/or has a modern browser can run it. This includes Windows, Linux, macOS, chrome OS, etc. Follow Downloading and Running the app for installation instructions.
    Downloads: 89 This Week
    Last Update:
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  • 18
    JUnit 5

    JUnit 5

    Programmer-friendly testing framework for Java and the JVM

    The 5th major version of the programmer-friendly testing framework for Java and the JVM. JUnit 5 is the next generation of JUnit. The goal is to create an up-to-date foundation for developer-side testing on the JVM. This includes focusing on Java 8 and above, as well as enabling many different styles of testing. Official CI build server for JUnit 5. Used to perform quick checks on submitted pull requests and for build matrices including the latest released OpenJDK and early access builds of the next OpenJDK. The JUnit Platform serves as a foundation for launching testing frameworks on the JVM. It also defines the TestEngine API for developing a testing framework that runs on the platform. Furthermore, the platform provides a Console Launcher to launch the platform from the command line and the JUnit Platform Suite Engine for running a custom test suite using one or more test engines on the platform. First-class support for the JUnit Platform also exists in popular IDEs.
    Downloads: 86 This Week
    Last Update:
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  • 19
    Catacombae

    Catacombae

    A free collection of applications and utility programs

    This project serves as a collection of different free software projects that I'm working on. The major ones are currently "HFSExplorer", "DMGExtractor", and "NTFS-3G for Mac OS X".
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    Downloads: 404 This Week
    Last Update:
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  • 20
    Eclipse Tomcat Plugin

    Eclipse Tomcat Plugin

    Simple handling of a tomcat server in Eclipse IDE

    The Eclipse Tomcat Plugin provides simple integration of a tomcat servlet container for the development of java web applications. You can join us for discussion in our IRC channel #tomcatplugin on Freenode. Please be patient if noone is answering instantly. You can also create a new ticket if you need help. This project is a fork of the original Sysdeo Tomcat Plugin. Please use http://tomcatplugin.sf.net/update for installation.
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    Downloads: 457 This Week
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  • 21
    RStudio

    RStudio

    RStudio is an integrated development environment (IDE) for R

    RStudio is a powerful, full-featured integrated development environment (IDE) tailored primarily for the R programming language but increasingly supportive of other languages like Python and Julia. It brings together console, editor, plotting, workspace, history, and file-management panes into a unified interface, helping data scientists, statisticians, and analysts to work more productively. The IDE is cross-platform: there are desktop versions for Windows, macOS and Linux, as well as a server version for remote or multi-user deployment via a web browser. In addition to code editing and execution, RStudio offers extensive support for reproducible research via R Markdown, notebooks, and integration with version control systems like Git and SVN. Package development is built in, with tooling for building, checking, and testing R packages, plus integration with documentation tools, CRAN submission workflows, and project templates.
    Downloads: 82 This Week
    Last Update:
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  • 22

    dex2jar

    Tools to work with android .dex and java .class files

    Mirrors: * https://bitbucket.org/pxb1988/dex2jar * https://github.com/pxb1988/dex2jar dex2jar contains following compment * dex-reader is designed to read the Dalvik Executable (.dex/.odex) format. It has a light weight API similar with ASM. * dex-translator is designed to do the convert job. It reads the dex instruction to dex-ir format, after some optimize, convert to ASM format. * dex-ir used by dex-translator, is designed to represent the dex instruction dex-tools tools to work with .class files. * d2j-smali disassemble dex to smali files and assemble dex from smali files. different implementation to smali/baksmali, same syntax, but we support escape in type desc "Lcom/dex2jar\t\u1234;" * dex-writer write dex same way as dex-reader.
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    Downloads: 601 This Week
    Last Update:
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  • 23
    MotorAssistance

    MotorAssistance

    Aim assistance for blocks and mobs

    AimAssistanceMod is a Minecraft modification that provides aim assistance for interacting with blocks and mobs. It is particularly beneficial for players using controllers or those with disabilities, as it enhances the gameplay experience without offering any advantage in player-versus-player (PvP) scenarios. The mod is fully configurable, allowing users to tailor the assistance to their preferences.
    Downloads: 77 This Week
    Last Update:
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  • 24
    Yet Another APRS Client
    Client software for users of the Automatic Packet Reporting System amateur radio network.
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    Downloads: 581 This Week
    Last Update:
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  • 25
    Open Visual Traceroute

    Open Visual Traceroute

    Open source cross-platform Java Visual Traceroute

    Open source cross-platform (Windows/Linux/Mac) Java Visual Traceroute. Data is displayed in a 3D or a 2D map component. What is a traceroute? http://en.wikipedia.org/wiki/Traceroute If you need some help, please first check http://visualtraceroute.net/ Feel free to drop by and leave a comment on the Facebook page https://www.facebook.com/openvisualtraceroute Enjoy and share! If you want to support the development of this project, you can make a Paypal contribution at leo.lewis.software@gmail.com
    Leader badge
    Downloads: 706 This Week
    Last Update:
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