Open Source Java Software - Page 26
Sort By:
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.
-
AI-generated apps that pass security reviewRetool 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.
-
Application Monitoring That Won't Slow Your App DownFull APM with errors, performance, logs, and uptime monitoring. 99.999% uptime SLA on the platform itself.
-
1
Purpur
Purpur is a drop-in replacement for Paper servers
Purpur is an open-source Minecraft server software built as a fork of the Paper server platform, designed to provide extensive configurability and gameplay customization for server administrators. It functions as a drop-in replacement for Paper, meaning existing servers can switch to Purpur without major changes while gaining access to additional features and configuration options. The project focuses on allowing administrators to modify gameplay mechanics, behaviors, and rules that are normally fixed in standard server implementations. Through a wide set of configuration settings, server operators can adjust how mobs behave, alter game mechanics, or enable experimental gameplay features that are not present in vanilla Minecraft. Purpur inherits performance improvements and plugin compatibility from the Paper ecosystem while adding its own enhancements and customization capabilities. -
2
SCOUTER
Scouter is open source APM (Application Performance Management) tool
SCOUTER is an open-source APM like New Relic and appdynamics. (APM means application performance monitoring or application performance management.) -
3
SQLFlow
SQL compiler bridging databases and machine learning workflows
SQLFlow is an open source project designed to bridge the gap between traditional SQL-based data processing and modern machine learning workflows by extending SQL syntax with AI capabilities. It acts as a compiler that translates SQL programs into executable workflows, enabling users to train, evaluate, and deploy machine learning models directly from SQL statements. It integrates with multiple database engines such as MySQL, Hive, and MaxCompute, while also supporting machine learning frameworks like TensorFlow and XGBoost. By embedding machine learning operations into SQL, it removes the need for users to switch between programming languages such as Python or R, simplifying the overall workflow. SQLFlow also supports model training, prediction, and explanation tasks, allowing data practitioners to work entirely within a familiar query interface. -
4
Spring AI Alibaba Examples
Spring AI Alibaba examples for building and testing AI apps
Spring AI Alibaba Examples provides a collection of example projects that demonstrate how to use Spring AI and Spring AI Alibaba across different scenarios, from basic setups to more advanced AI applications. It is designed to help developers understand core concepts, explore practical implementations, and follow best practices when building AI-powered systems using the Spring ecosystem. Each module focuses on a specific use case such as chat, image processing, audio handling, graph workflows, and retrieval-augmented generation. The examples highlight how to integrate AI models, manage prompts, handle memory, and build multi-model or multi-agent workflows. Developers can explore individual project folders for detailed instructions and implementation guidance. Spring AI Alibaba Examples also supports experimentation through playground modules and encourages contributions to expand real-world AI use cases and improve development practices. -
Gemini 3 and 200+ AI Models on One PlatformBuild generative AI apps with Vertex AI. Switch between models without switching platforms.
-
5
Swagger Core
Examples, server integrations for generating Swagger API Specification
Swagger Core is a Java implementation of the OpenAPI Specification. Current version supports JAX-RS2 (javax and jakarta namespaces). One of the common usage scenarios is to integrate swagger-jaxrs2 into an existing or new JAX-RS based project ("code-first"), to automatically provide and expose its APIs definition, which is kept in sync during the project lifecycle. Such definition can be the base for further processing/consumption, including API documentation (e.g with swagger-ui, API client generation in various languages (e.g with swagger-codegen), custom processing, and so on. Such result is achieved by scanning JAX-RS resources and resolving their operations and used types, (also) processing applied annotations (e.g. Swagger, JAX-RS, Jackson, JAXB, etc.). An extension mechanism allows to further customize and pre/post processing result. -
6
Why & When
Exposing the JDK Flight Recorder as a Spring Boot Actuator Endpoint
This is a Spring Boot 2 Starter exposing the JDK Flight Recorder as a Spring Boot Actuator Endpoint. Normally the JDK Flight Recorder is available locally or by JMX remote. Depending on your deployment scenario shell or JMX access might not be available for the application server. Here comes this handy starter into play! This starter adds a new Spring Boot Actuator endpoint for JDK Flight Recorder remote control. This RESTful endpoint allows starting and stopping Flight Recording and downloading the .jfr files for further analysis. By default, this starter doesn't include spring webmvc or spring web flux dependencies. You will have to include them according to the stack you wish. Every recording session gets its own unique Flight Recording ID. The endpoint returns this ID as plain text, in this case ID 1. This ID must be used to download the recorded data. -
7
Xonotic
Superproject containing build scripts and tools to download assets
Xonotic is a free, open-source arena-style first-person shooter video game that emphasizes fast-paced movement, skill-based combat, and a diverse arsenal, with gameplay reminiscent of classic shooters like Quake and Unreal Tournament. Born as a community fork of the Nexuiz project to preserve open development principles, Xonotic runs on an enhanced version of the DarkPlaces engine and supports Windows, macOS, and Linux platforms with no installation required beyond extracting the game files. Players can enjoy a wide variety of multiplayer game modes—from traditional deathmatch and team captures to experimental variations like Nexball and Freeze Tag—each designed to exploit high mobility and deep map knowledge. The game includes dozens of official and community-created maps, robust server browsing, customizable HUD and controls, and even an integrated statistics system called XonStat for tracking performance. -
8
maven git commit id plugin
Maven plugin which includes build-time git repository information
git-commit-id-maven-plugin is a plugin quite similar to Build Number Maven Plugin for example but as the Build Number plugin at the time when I started this plugin only supported CVS and SVN, something had to be done. I had to quickly develop a Git version of such a plugin. For those who don't know the plugin, it basically helps you with the following tasks and answers related questions. The plugin is available from Maven Central (see here), so you don't have to configure any additional repositories to use this plugin. A detailed description of using the plugin is available in the Using the plugin document. All you need to do in the basic setup is to include that plugin definition in your pom.xml. For more advanced users we also prepared a guide to provide a brief overview of the more advanced configurations. Even though this plugin tries to be compatible with every Maven version there are some known limitations with specific versions. -
9
syncthing-android
Wrapper of syncthing for Android
Syncthing is a continuous file synchronization program. It synchronizes files between two or more computers in real time, safely protected from prying eyes. Your data is your data alone and you deserve to choose where it is stored, whether it is shared with some third party, and how it’s transmitted over the internet. None of your data is ever stored anywhere else other than on your computers. There is no central server that might be compromised, legally or illegally. All communication is secured using TLS. The encryption used includes perfect forward secrecy to prevent any eavesdropper from ever gaining access to your data. Every device is identified by a strong cryptographic certificate. Only devices you have explicitly allowed can connect to your other devices. -
$300 in Free Credit Towards Top Cloud ServicesStart your project in minutes. After credits run out, 20+ products include free monthly usage. Only pay when you're ready to scale.
-
10
An easy to use JDBC benchmark that closely resembles the TPC-C standard for OLTP. RDBMS's presently supported include PostgreSQL, EnterpriseDB and Oracle.
-
11
VarScan
Variant detection in next-generation sequencing data
Variant detection in massively parallel sequencing. For one sample, calls SNPs, indels, and consensus genotypes. For tumor-normal pairs, further classifies each variant as Germline, Somatic, or LOH, and also detects somatic copy number changes. THE LATEST VERSION IS AVAILABLE ON GITHUB -
12
-
13
JACo Watermark
Add watermark to any image or photo (batch processing available).
A free open source Java application created to help you apply watermarks to your pictures in order to protect them from unauthorized distribution. Different font, color, size and transparency texts or images can be added as a watermark. Batch processing is also provided. -
14
NSHtml2Apk
Build an Android app from a website or embedded HTML pages
Quickly and simply create an Android application (APK) from an http/https site or embedded HTML pages with its javascript files, styles, images, etc. nshtml2apk is software to compile progressive websites/html/web apps and stunning Android apps in just one click. No coding required. Users can use to port HTML games or web application to Android, customize them. -
15
Программа для создания PDF файлов с этикетками-датаматрикс на основе выгруженного из ЦРПТ csv файла. Так же позволяет генерировать xml файлы для ввода в оборот, передачи и приемки кодов между юр лицами и ИП.
-
16
Writer2LaTeX and Writer2xhtml is a collection of converters from OpenDocument Format (ODF) to LaTeX/BibTeX, HTML+MathML and EPUB. It is delivered as a standalone java library, as a command line application and as extensions for LibreOffice.
-
17
IOS6 and recent iTunes updates have broken a few features. We have made some partial fixes, but they are not complete. If you'd like to help support our development, or take over the development please let us know. Explore the internal file structure of your iphone (or of a seized phone in the case of forensic teams) using either the iphone's own backup files or (for jail broken iphones) ssh. Viewing of plist, sqlite, and hex are supported. IOS 5 is now supported iOS 6 only partially works at the moment (some features fail or are missing). Unfortunately paid work means we can't fix this right now, but would welcome anyone else submitting patches.
-
18
Master of Magic - IME
Multiplayer Java rewrite of Simtex's classic game Master of Magic
This is a multiplayer client/server java rewrite of Microprose/Simtex's classic DOS turn based strategy game Master of Magic. Latest versions now require Java 25, however since a lot of folks have been having trouble setting this up, I am now providing 2 versions, one with a JRE included in the download, and one without. Beyond this, it should just be as simple as unzipping the file and running server.bat to get the server running locally, and client.bat to start up the client. See the readme for more details. The project is effectively finished at this point and I did not really plan any further major releases. However Simbey has been commissioning an artist to upscale all the graphics from the original game so these have been incorporated into 1.7.0. By default it uses the original graphics, you need to enable the upscaled graphics in the options screen. I am at the MoM discord server at https://discord.gg/wFNQf36 Or can message me or raise ticket on SourceForge -
19
Open Beam Profiler
Profiling and analysis of laser beams with ImageJ
This open-source software enables profiling and analysis of laser beams. It can be used with a variety of cameras supported by ImageJ and Micro-Manager, or images from any other source. It provides all common analysis methods like D4Sigma, knife-edge, as well as fitting of Hermite-Gauss, Laguerre-Gauss and super-Gauss functions. -
20
Open Hospital
Open Hospital - Hospital Information System
Announcement: Since version 1.9.0, codebase is moved to GitHub https://github.com/informatici/ Click download button above for the latest release (GitHub mirror). Previous versions and different architectures under "Files" section. This application is the first of a series of software products that ISF[1] has developed to support the management and the activities of the St. Luke Hospital in Angal (Uganda). After the successful installation and use, the St. Luke Hospital is the first of a long list of hospitals that found this software useful. All the work on this software is done as an open-source[2] project using only open-source development software. Open Hospital Web Site: https://www.open-hospital.org Support Requests: https://www.open-hospital.org/contact For latest versions: https://www.open-hospital.org/download For previous versions: https://sourceforge.net/projects/openhospital/files -
21
Archimedes will be a Computer Aided Design (CAD) program developed side by side with architecture offices in order to fulfill all their needs. This way, we hope to develop software better suited for architects than the currently widely used AutoCAD.
-
22
Java SID Player Music Library V2
C64 Emulator
This is a Commodore 64 emulator specialized for sound reproduction. It is also a SID player for music collections like HVSC and CGSC. It is a full C64 emulator and can play games of the GameBase64 project as well. -
23
JaxoDraw
JaxoDraw: Feynman Diagrams made easy!
JaxoDraw is a tool to generate Feynman diagrams in a mouse click-and-drag fashion. Graphs can be exported to a variety of graphics formats and arbitrary latex code can be used for labels to produce high-quality publishing-style figures. -
24
Openbravopos
Open Source Openbravo POS convert to Commercial Retail ERP and POS
Complete and user-friendly retail POS functionality A comprehensive, flexible, and user-friendly cloud-based retail POS software. 1. Sales, quotations, reservations, and returns, including cross-store and cross-channel scenarios. 2. Automatic validation of customer personal data. 3. Configuration of keymaps for quick access to options and featured products. https://www.youtube.com/watch?v=Aai3iYLP2TQ&pp=ygUNb3BlbmJyYXZvIGtkcw%3D%3D Contact: both version of Openbravo POS osopenbravo@gmail.com Join Our Channel: https://whatsapp.com/channel/0029Vavg10ZIXnlvG5dUDu0x -
25
MegaMek is a networked Java clone of BattleTech, a turn-based sci-fi boardgame for 2+ players. Fight using giant robots, tanks, and/or infantry on a hex-based map. Development currently occurs on GitHub (see https://github.com/MegaMek). This SF page remains as a mirror and archive of the old issue trackers. The trackers are currently locked and new issues should be created on the GitHub page.
