Open Source Java Software - Page 17
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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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JamVM is a new Java Virtual Machine conforming to the JVM specification edition 2 (blue book). It is extremely small - stripped on PowerPC ~110K, Intel 80K. However, unlike other small VMs it supports the full spec, inc. object finalisation and JNI.
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Quelea
Free projection software for churches
Projection software designed around the needs of the modern, multimedia rich church. This project has moved to Github. Please see https://github.com/quelea-projection for up-to-date code and new releases. -
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SmartCam - Smart Phone Web Camera - Turns a camera phone (S60, WinMo6.x, Android, Samsung Bada) with bluetooth or WiFi into a handy webcam ready to use with your PC
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PS3 Media Server
A DLNA-compliant UPnP Media Server
PS3 Media Server is a DLNA-compliant UPnP Media Server. Originally written to support the PlayStation 3, PS3 Media Server has been expanded to support a range of other media renderers, including smartphones, TVs, music players and more. Because it is written in Java, PS3 Media Server supports all major operating systems, with versions for Windows, Linux and Mac OS X. The program streams or transcodes many different media formats with little or no configuration. It is powered by MEncoder, FFmpeg, tsMuxeR and AviSynth, which combine to offer support for a wide range of media formats. -
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Central Authentication Service (CAS)
Identity & Single Sign On for all earthlings and beyond
Welcome to the home of the Apereo Central Authentication Service project, more commonly referred to as CAS. CAS is an enterprise multilingual single sign-on solution and identity provider for the web and attempts to be a comprehensive platform for your authentication and authorization needs. CAS is an open and well-documented authentication protocol. The primary implementation of the protocol is an open-source Java server component by the same name hosted here, with support for a plethora of additional authentication protocols and features. Monitor and track application and system behavior, statistics and metrics in real-time. Manage and review audits and logs centrally, and publish data to a variety of downstream systems. Manage and register client applications and services with specific authentication policies. Cross-platform client support (Java, .NET, PHP, Perl, Apache, etc). -
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Iris
A modern shaders mod for Minecraft compatible with existing OptiFine
Iris was created to fill a void that I saw in the Minecraft customization and graphical enhancement community: the lack of an open-source shaders mod that would let me load my favorite shader packs on modern versions of the game, while retaining performance and compatibility with modpacks. OptiFine, the current dominant mod for loading shader packs, has restrictive licensing that firmly stands in the way of any sort of tinkering, and is fairly notorious for having compatibility issues with the mods that I like. It's also mutually incompatible with Sodium, the best rendering optimization mod in existence by a large margin. ShadersMod was never updated past 1.12, and it lacks support for many of the many modern popular shaderpacks. So I created Iris, to try and solve these issues, and also address many other longstanding issues with shader packs. I first and foremost develop Iris to meet my own needs of a performance-oriented shaders mod with good compatibility. -
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JDA
Java wrapper for the popular chat & VOIP service
JDA strives to provide a clean and full wrapping of the Discord REST api and its Websocket-Events for Java. This library is a helpful tool that provides the functionality to create a discord bot in java. Discord is currently prohibiting the creation and usage of automated client accounts (AccountType.CLIENT). We have officially dropped support for client login as of version 4.2.0! Note that JDA is not a good tool to build a custom discord client as it loads all servers/guilds on startup, unlike a client which does this via lazy loading instead. If you need a bot, use a bot account from the Application Dashboard. Creating the JDA Object is done via the JDABuilder class. After setting the token and other options via setters, the JDA Object is then created by calling the build() method. When build() returns, JDA might not have finished starting up. However, you can use await ready() on the JDA object to ensure that the entire cache is loaded before proceeding. -
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OpenAudible
Audiobook Manager for Audible Users
OpenAudible is a cross-platform audiobook manager designed for Audible users. Manage/Download all your audiobooks with this easy-to-use desktop application. Say goodbye to the hassle of managing your audiobooks across multiple devices. With OpenAudible, you can easily download, view, and manage all your Audible books in one place. Our lightning-fast conversion to MP3 and M4B audio formats makes it easy to enjoy your favorite books on any device. Plus, our automation features make it a breeze to update your library after buying new books. Don't just take our word for it - see what our satisfied users say. Get started with OpenAudible today and experience the ultimate audiobook management solution. -
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Phosphor (for Fabric)
A Fabric mod designed to improve the performance of Minecraft
Phosphor is a free and open-source Minecraft mod (under GNU GPLv3) aiming to save your CPU cycles and improve performance by optimizing one of Minecraft's most inefficient areas-- the lighting engine. It works on both the client and server and can be installed on servers without requiring clients to also have the mod. The mod is designed to be as minimal as possible in the changes it makes, and as such, does not modify the light model or interfaces of vanilla Minecraft. Because of this, Phosphor should be compatible with many Minecraft mods (so long as they do not make drastic changes to how the lighting engine works.) If you've ran into a compatibility problem, please open an issue. -
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QKSMS
A beautiful SMS messenger for Android
Fall in love with texting all over again with QKSMS! QKSMS is a beautiful, simple and customizable open source replacement to the stock messaging app on Android. It's got a clean, clutter-free intuitive design that lets you focus on what matters, plus millions of colors to choose from to make the theme of the entire app truly your own. QKSMS has some powerful features, including photo sharing, group chat, conversation blocking, message backup and restore and more. It's got everything you need from a text messaging app, plus all the fun features that make for a great text messaging experience. Simply put, QKSMS makes texting magical again, just the way it should be! -
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Spring Boot Examples
Spring Boot tutorials, technology stack example code
spring-boot-examples is a collection of small, runnable projects that teach Spring Boot “by example,” emphasizing minimal dependencies and practical, copy-pasteable patterns. The repository provides multiple standalone demos (e.g., web, scheduling, persistence, messaging, caching, Docker) to help beginners quickly grasp common components and idioms. The author notes that all examples have been updated to Spring Boot 3.0, with earlier 1.x and 2.x code paths kept accessible for reference. Each sample focuses on a single topic—such as Web MVC, WebFlux, Thymeleaf, JPA/MyBatis CRUD, file upload, Redis/MongoDB, RabbitMQ, and containerization—so you can learn one concept at a time and compose them later. There are also demos for testing, packaging (JAR/WAR), and Docker Compose scenarios that combine Spring Boot with Nginx and MySQL. If you want additional topics covered, the maintainer invites requests via issues so the set can keep growing with the community’s needs. -
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checkstyle
Development tool to help programmers write standard Java code
Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. It automates the process of checking Java code to spare humans of this boring (but important) task. This makes it ideal for projects that want to enforce a coding standard. Checkstyle is highly configurable and can be made to support almost any coding standard. An example configuration files are supplied supporting the Sun Code Conventions, Google Java Style. Checkstyle can check many aspects of your source code. It can find class design problems, method design problems. It also has the ability to check code layout and formatting issues. Since Checkstyle 7, some users have been unable to continue upgrading to newer versions of the utility because of the new JDK 1.8 compile requirement. The development team doesn't have the resources to keep updating the utility for older JDKs for those that can't work with the latest version. -
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openMAINT
Open source solution for the Property & Facility Management
openMAINT is an enterprise open source solution for the Property & Facility Management (CMMS). openMAINT helps to know and manage the inventory, maintenance, logistic and economic information related to buildings, plants and movable assets. openMAINT is a ready-to-use solution, configured with databases, workflows, reports and dashboards. The software can be gradually activated according to the needs of each organization and the available resources. openMAINT includes the modules of Space & Asset Inventory, Facility Maintenance, Logistic Management, Economic Management, Energy & Environment, GIS & BIM. The FM module manages the preventive / scheduled / breakdown maintenance using worflows based on the Maintenance Manual criteria. openMAINT also supports the new BIM extensions (Building Information Modeling) with a connector based on the open IFC standard and a viewer of IFC 3D models. openMAINT is implemented on the open source asset management framework CMDBuild. -
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Ardublock
Visual Programming Environment for Arduino
Visual Programming Environment for Arduino -
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Biogenesis is an artificial life program that simulates the processes involved in the evolution of organisms. It shows colored segment based organisms that mutate and evolve in a 2D environment. Biogenesis is based on Primordial Life.
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Xmind
The most popular mindmapping and brainstorming software
Professional and powerful brainstorming and mind mapping software tool, open source, Eclipse Community Award winner, often used for capture ideas, knowledge/project management and GTD, supporting fishbones/org-charts/tree charts/spreadsheets, easy-to-use. -
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Crossfire RPG game
Cooperative multiplayer graphical RPG and adventure game
Crossfire is a free, open-source, cooperative multi-player RPG and adventure game. Since its initial release, Crossfire has grown to encompass over 150 monsters, 3000 areas to explore, an elaborate magic system, 14 races, 16 character classes, and many powerful artifacts scattered far and wide. Set in a fantastical medieval world, it blends the style of Gauntlet, NetHack, Moria, and Angband. -
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hus Struktogrammer
Nassi-Shneiderman Diagramm-Editor
Dies ist ein Editor zum Erstellen von Nassi-Shneiderman Diagrammen / {This is an editor for creating Nassi-Shneiderman diagrams} Die ursprüngliche Delphi-Version wurde inzwischen durch eine neu in Java entwickelten Version abgelöst / {The original Delphi version has now replaced by a new version developed in Java} Für die Ausbildung und private Zwecke kann das Programm gratis benutzt werden / {For educational and private purposes, the program can be used free of charge} -
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ConcatPDF
PDF Concatenation Tool
ConcatPDF is the tool to concatenate PDF files. It can concatenate, extract, encrypt, decrypt, configure PDF files, convert image files to PDF. GUI version and CUI version are both available. iText.NET is iText porting on .NET Framework by J#. This library allows you to generate PDF, (X)HTML, XML, RTF files on Microsoft.NET Framework including ASP.NET. -
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A java based Scenery Config Editor. Provides group functionality and more.
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A pure Java library for reading from and writing to MS Access databases.
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jNetMap
Graphical network monitoring and documentation tool
jNetMap is a graphical network monitoring and documentation tool. It will ping all registered devices every x minutes, updating the status according to the result of the ping. Requires Java 8 or higher -
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Modelio - Modeling environment (UML)
Modeling tool supporting UML, BPMN and other standards
Modelio is an open source modeling environment tool providing support for the latest standards (UML 2, BPMN 2, ...). It can be extended by adding modules which add new functionalities. A large set of modules (free and open source) supporting code management (generation/reverse), modeling standards (TOGAF, SysML, SoaML, ...), document generation, ... is available from the Modelio Store (https://store.modelio.org/). Need help or want to share experience with the Modelio community? Go to our forum: https://www.modelio.org/forum/index.html. -
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Jailer
Database Subsetter and Relational Data Browser
Database Subsetting and Relational Data Browsing Tool. Navigate bidirectionally through the database by following foreign-key-based or user-defined relationships. Exports consistent, referentially intact row-sets from relational databases. Removes data w/o violating integrity. Generates topologically sorted SQL-DML, hierarchically structured XML. and DbUnit datasets.
