Open Source Java Software - Page 6

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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.

  • Veeam Data Platform v13.1 Icon
    Veeam Data Platform v13.1

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  • 1
    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: 332 This Week
    Last Update:
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  • 2
    Acode

    Acode

    A powerful text/code editor for Android

    Welcome to Acode Editor, a powerful and versatile code editing tool designed specifically for Android devices. Whether you're working on HTML, CSS, JavaScript, or other programming languages, Acode empowers you to code on-the-go with confidence. Step into the future of coding with our innovative plugin system. This all-new feature is compatible with a wide range of plugins, increasing Acode's functionality to meet all your development needs. With over 30 plugins already available in the plugin store, the possibilities are endless. Acode lets you build and run websites right in your browser, debug with ease using the built-in console, and edit a wide range of source files from Python and CSS to Java, JavaScript, Dart, and more.
    Downloads: 71 This Week
    Last Update:
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  • 3
    Flyway

    Flyway

    Database migrations made easy

    Robust schema evolution across all your environments, with ease, pleasure, and plain SQL. Version control for your database, so you can migrate it with ease and confidence. Flyway lets you regain control of your migrations with ease. Flyway migrates your database, so you don't have to worry about it. Releases have never been this easy. Migrate from any version (including an empty database) to the latest version of the schema. Plain SQL scripts (including placeholder replacement). No proprietary XML formats, no lock-in. Java-based migrations for advanced data transformations and handling with LOBs. All you need is Java 7+ and your Jdbc driver and you're good to go! Full support for Amazon RDS, Microsoft SQL Azure, Google Cloud SQL, Heroku, and more. Filesystem and classpath scanning to automatically discover SQL and Java migrations. Ship migrations together with the application and run them automatically on startup using the API.
    Downloads: 71 This Week
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  • 4
    Chat2DB

    Chat2DB

    AI-driven database tool and SQL client

    Save time by working with data. Connect to all your data sources, and instantly generate optimal SQL for fast lightning information. If you don't know SQL well, you can get instant information without writing SQL. Generate high-performance SQL for your complicated queries using natural language, as well as correcting errors and getting AI suggestions to optimize the performance of SQL queries. Developers can write complex SQL queries quickly and accurately with the help of the AI SQL editor, saving time and improving development efficiency. Just enter the names of the tables and columns, and we will automatically configure the type, password, and comment, saving you 90% of the time. Imports and exports data in multiple formats (CSV, XLSX, XLS, SQL) to facilitate exchange, backup, and migration. Transfers data between different databases or through cloud services, as a backup and recovery solution that guarantees the minimum loss of data and downtime during migrations.
    Downloads: 70 This Week
    Last Update:
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  • 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.
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  • 5
    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: 350 This Week
    Last Update:
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  • 6
    DrJava

    DrJava

    A lightweight programming environment for Java

    DrJava is a lightweight programming environment for Java designed to foster test-driven software development. It includes an intelligent program editor, an interactions pane for evaluating program text, a source level debugger, and a unit testing tool.
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    Downloads: 368 This Week
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  • 7
    Wurst Client

    Wurst Client

    Minecraft Wurst Hacked Client v7

    Wurst7 is an open-source modified Minecraft client that includes a large collection of gameplay modifications commonly referred to as “hacks” or cheat modules. The project provides a custom client environment where players can enable various automated tools, overlays, and gameplay enhancements that alter how the game behaves. These features may include movement enhancements, automation utilities, and visualization tools that provide additional information about the game world. Wurst7 is typically installed as a Fabric mod and runs alongside the standard Minecraft Java Edition client. The client includes a graphical interface that allows users to toggle different modules and configure their behavior during gameplay. It is designed primarily for experimentation, testing, or gameplay modifications in environments where such tools are permitted.
    Downloads: 69 This Week
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  • 8
    PDFsam

    PDFsam

    PDFsam, a desktop application to split, merge, mix, rotate PDF files

    PDFsam Basic is our free and open-source desktop application to split, merge, extract pages, rotate and mix PDF files. PDFsam Visual is a powerful tool to visually compose PDF files, reorder pages, delete pages, split, merge, rotate, encrypt, decrypt, extract text, convert to grayscale, crop PDF files. PDFsam Basic is written using JavaFX. Since version 4 it is released as a self-contained application and bundles a jlinked JDK while version 3 requires a Java Runtime Environment 8 with JavaFx installed in order to run.
    Downloads: 68 This Week
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  • 9
    MCreator

    MCreator

    Make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons

    MCreator is an open-source integrated development environment designed to simplify the process of creating Minecraft mods, add-ons, resource packs, and data packs. The software provides a visual programming environment where users can design mod features using graphical tools instead of writing code manually. Through wizards, block-based programming interfaces, and an integrated editor, MCreator generates the underlying Java or JSON code required for the mod automatically. This approach allows beginners and students to experiment with mod development without needing extensive programming experience. At the same time, advanced users can extend the tool through plugins or directly modify the generated code for more complex projects. MCreator is widely used in educational settings, modding communities, and programming workshops as a gateway into game development.
    Downloads: 66 This Week
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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

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  • 10
    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.
    Leader badge
    Downloads: 362 This Week
    Last Update:
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  • 11
    eGuideDog free software for the blind
    eGuideDog project develops free software for the blind. Currently, we focus on WebSpeech, Ekho TTS and WebAnywhere.
    Leader badge
    Downloads: 304 This Week
    Last Update:
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  • 12
    TripleA Maps

    TripleA Maps

    A collection of all maps and games made for the TripleA game engine

    http://www.triplea-game.org/
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    Downloads: 279 This Week
    Last Update:
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  • 13
    GanttProject

    GanttProject

    Free project scheduling and management tool

    GanttProject is a project scheduling application written in Java and featuring Gantt chart, resource management, calendaring, import/export (MS Project, HTML, PDF, spreadsheets). Learn more on http://ganttproject.biz
    Leader badge
    Downloads: 312 This Week
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  • 14
    Lanproxy

    Lanproxy

    Intranet penetration tool that proxies local area network computers

    Lanproxy is an intranet penetration tool that proxies local area network personal computers and servers to the public network. It supports tcp traffic forwarding and any tcp upper layer protocol (access to intranet websites, local payment interface debugging, ssh access, remote desktop, http proxy) , https proxy, socks5 proxy...). Penetration basic functions, same as the open source version, high performance, can support tens of thousands of penetration connections at the same time. Support http/https/socks5 multiple modes Use the client network proxy to surf the Internet, and easily access the company network at home. Custom domain name ssl certificate, you can also enable automatic application and renewal of ssl certificate for your bound domain name without manual intervention.
    Downloads: 63 This Week
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  • 15
    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.
    Leader badge
    Downloads: 387 This Week
    Last Update:
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  • 16
    Apache JMeter

    Apache JMeter

    Load testing tool for analyzing and measuring performance of services

    The Apache JMeter™ application is open-source software, a 100% pure Java application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions. Apache JMeter may be used to test performance both on static and dynamic resources, Web dynamic applications. It can be used to simulate a heavy load on a server, group of servers, network or object to test its strength or to analyze overall performance under different load types.
    Downloads: 62 This Week
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  • 17
    Magisk Manager

    Magisk Manager

    Companion Android application for Magisk

    Magisk Manager is the companion Android app historically used to manage the Magisk root solution—installing updates, toggling modules, configuring DenyList/Hide-like behavior, and passing device integrity checks where possible. It centralizes operations that would otherwise require flashing or command-line work, making root management accessible to power users and developers. The app surfaces module repositories, logs, and safety features, giving you insight into what’s modified and how it affects system behavior. Over time, its role evolved alongside Android’s changing security model, but the core idea remains: provide a clean UI for patching, updating, and managing a systemless root environment. It also acts as a troubleshooting hub, exposing diagnostics that help users resolve boot loops or module conflicts. For anyone maintaining a rooted device for legitimate development and customization, Magisk Manager is the operational control center that keeps the stack coherent.
    Downloads: 62 This Week
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  • 18
    SymmetricDS

    SymmetricDS

    Database Replication, Filtered Synchronization, and Transformation

    SymmetricDS is database replication and file synchronization software. It is a platform-independent, web-enabled, and database-agnostic synchronization tool. With initial data load, bidirectional change data capture, conflict resolution, and data transformation, it is a comprehensive data replication solution.
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    Downloads: 291 This Week
    Last Update:
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  • 19
    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 ***
    Leader badge
    Downloads: 267 This Week
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  • 20
    OpenClinic GA

    OpenClinic GA

    Open Source Integrated Hospital Information Management System

    OpenClinic GA is an open source integrated hospital information management system covering management of administrative, financial, clinical, lab, x-ray, pharmacy, meals distribution and other data. Extensive statistical and reporting capabilities. OpenClinic GA and OpenClinic GMAO are distributed under the GNU GPLv3 license (https://www.gnu.org/licenses/gpl-3.0.html) ans is owned by Frank Verbeke, MD, PhD at Post-Factum BV (https://www.post-factum.be)
    Leader badge
    Downloads: 332 This Week
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  • 21
    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: 59 This Week
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  • 22
    SoapUI

    SoapUI

    SoapUI is a free and open source cross-platform functional testing

    SoapUI is the world's leading testing tool for API testing. See the SoapUI website to learn more. By downloading our software, you agree to our license and privacy policy. Automate and fit API testing into your team’s continuous delivery pipeline with the next-generation tool built for validation of REST, SOAP, GraphQL, microservices, and other back-end services. This is for developers and testers looking to accelerate their ability to deliver REST, SOAP, and GraphQL APIs. SoapUI Open Source is the simplest and easiest way to begin your API testing journey. APIs, or Application Programming Interfaces, have become the center of software development, connecting and transferring data and logic across disparate systems and applications. Luckily, testing them can greatly improve the efficiency of your testing strategy as a whole, helping you deliver software faster than ever.
    Downloads: 59 This Week
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  • 23
    Stirling-PDF

    Stirling-PDF

    Web application that allows you to perform operations on PDF files

    Stirling PDF is a powerful, locally hosted web-based PDF manipulation tool offering a wide range of editing, conversion, and utility features. It allows users to merge, split, compress, convert, OCR, and perform other operations on PDF files directly from a browser without uploading data to third-party servers. The tool is privacy-conscious, self-hostable via Docker, and built with modularity in mind to allow future expansion and integration.
    Downloads: 56 This Week
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  • 24
    capacitor

    capacitor

    Build cross-platform native progressive web apps for iOS and Android

    Capacitor is an open source native runtime for building Web Native apps. Create cross-platform iOS, Android, and Progressive Web Apps with JavaScript, HTML, and CSS. Capacitor’s native plugin APIs make it extremely easy to access and invoke common device functionality across multiple platforms. Build web-based applications that run equally well across iOS, Android, and as Progressive Web Apps. Access the full Native SDKs on each platform, and easily deploy to the App Stores (and the web). Add custom native functionality with a simple Plugin API, or use existing Cordova plugins with our compatibility layer. Capture images, save photos, and configure hardware parameters like saturation and color balance. Save and read documents, assets, and other content your users need to access via native file systems. Gather critical information about a user’s device location, such as latitude and longitude.
    Downloads: 56 This Week
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  • 25
    Xtreme Download Manager

    Xtreme Download Manager

    Powerfull download accelerator and video downloader

    Xtreme Download Manager is a powerful tool to increase download speed up to 500%, save streaming videos from websites, resume broken/dead downloads, and schedule and convert downloads. XDM seamlessly integrates with Google Chrome, Mozilla Firefox Quantum, Opera, Vivaldi and other Chromium and Firefox-based browsers, to take over downloads and saving streaming videos from web. XDM has a built-in video converter which lets you convert your downloaded videos to different formats so that you can watch them on your mobile or TV (100+ devices are supported) XDM can download streaming content from most websites. The best way of downloading webpage embedded videos from the Internet is here. After installing XDM, the "Download Video" button pops up whenever you are watching a video anywhere in the Internet. Just click on the button to start downloading clips. XDM supports all popular browsers including Google Chrome, Firefox Quantum, Vivaldi, Opera and many other browsers on Windows.
    Downloads: 55 This Week
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