An open API service indexing awesome lists of open source software.

Java

Java was originally developed as an alternative to the C/C++ programming languages. It is now mainly used for building web, desktop, mobile, and embedded applications. Java is owned and licensed through Oracle, with free and open source implementations available from Oracle and other vendors.

https://github.com/Andres6936/HALE

Hale is a turn based RPG with deep tactical combat and character customization. Included is a lengthy and varied campaign with many quests, items and monsters, visiting a variety of locales. The entire system is built to be moddable from the ground up.

2d game java role-playing rpg-game turn-based-strategy

Last synced: 11 Mar 2025

https://github.com/shannah/radchatapp

Full-featured chat app UI component in Java/Kotlin for Codename One.

chat codenameone java kotlin mobile-application-development

Last synced: 23 Apr 2025

https://github.com/DogerRain/HelloCoder

本项目是使用 vuepress 构建的一个技术文档博客,收集了作者本人 学习Java、面试 的一些文章,多为系列文章。

java javalearn javalearning

Last synced: 02 Apr 2025

https://github.com/grashjs/api

Api of Atlas CMMS - Computerized maintenance management system

alternative cmms java java-8 maven postgresql rest-api spring-boot startup

Last synced: 28 Feb 2025

https://github.com/vinayalodha/elvis

Java Compiler plugin for Null safety

java null-safety

Last synced: 14 Jan 2026

https://github.com/ammarlodhi255/file-compression-system

File Compression Using Huffman Coding Built in Java.

data-structures huffman-coding huffman-compression-algorithm java

Last synced: 23 Apr 2025

https://github.com/zimei11/kingofbots

一个策略类AI的对战平台,平台上可以发布对战项目,每个同学可以实现自己的AI,然后支持AI与AI的PK与演示。

element-plus java mysql springboot vue3

Last synced: 21 Apr 2025

https://github.com/bobbui/direct-file-downloader

A simple, fool-proof file downloader

downloader fool-proof internet java

Last synced: 09 Apr 2025

https://github.com/sauce-code/cuckoo

This is an adaption of Peter Österlund's CuckooChess 1.12. The source code provided is a Java Maven project in UTF-8. The program, except for the chess font, is copyrighted by Peter Österlund, and is available as open source under the GNU GPL v3 license.

ai artificial-intelligence chess chess-ai chess-application chess-engine cuckoo gui java java-8 java-maven java-swing java8 maven swing swing-gui tui uci utf-8 utf8

Last synced: 28 Feb 2026

https://github.com/kdubois/camelquarkusvoter

Demo that shows how to use Camel Quarkus with Quarkus Dev Services and Kafka

camel java kafka kubernetes microservices

Last synced: 05 Mar 2026

https://github.com/nilshartmann/graphql-examples

Examples for GraphQL using various frameworks in backend and frontend

apollographql graphql java react spring springboot typescript

Last synced: 20 Jul 2025

https://github.com/azure-samples/azure-openai-rag-workshop-java

Create your own ChatGPT with Retrieval-Augmented-Generation workshop

azure chatgpt java langchain4j openai quarkus rag workshop

Last synced: 05 Apr 2025

https://robcast.github.io/digilib/

A versatile image viewing environment for the internet.

iiif image-server java

Last synced: 08 May 2025

https://github.com/saintzet/heuristicsforcleancode

The goal of the project is to help learn heuristics that will help you write clean code. Use them for the benefit of the community.

clean clean-architecture clean-code code-smell code-smell-detection csharp csharp-examples design-patterns example-clean-code example-code example-java heuristic heuristics java robert-martin

Last synced: 05 Apr 2025

https://github.com/salitaba/maven-decoder-mcp

MCP server for inspecting, searching, and decompiling Maven .m2 JARs for Java AI coding agents.

agentic-coding ai-agents bytecode cursor-ide decompiler dependency-analysis docker jar java maven maven-repository mcp mcp-server model-context-protocol python skills

Last synced: 20 Jun 2026

https://github.com/swifdroid/jni-kit

📦 The best JNI wrapper ever made

java jni swift wrapper

Last synced: 13 May 2026

https://github.com/naturalness/sensibility

Fixes Java syntax errors with LSTM neural networks! [proof-of-concept]

hacktoberfest java keras lstm ml4code neural-network syntax syntax-checker syntax-error

Last synced: 05 May 2025

https://github.com/jgperrin/net.jgp.books.spark.ch04

Spark in Action, 2nd edition - chapter 4

java manning spark sparkjava sparkwithjava

Last synced: 06 May 2025

https://github.com/greenback-inc/greenback-java

Java library to build modern applications with high-def itemized financial data. OCR, AI, and NLP for receipts, invoices, bills, and RFC822 email messages.

accounting android bills email fintech groovy invoices java kotlin nlp-machine-learning ocr receipts rfc822 scala

Last synced: 12 Apr 2025

https://github.com/tfkfan/netty-server-game-demo

Netty java game highload server with room management support

gameserver highload java netty

Last synced: 12 Apr 2025

https://github.com/lukehb/trajsuite

TrajSuite is a cross-platform Java application that provides a suite of trajectory data-mining and visualisation features.

algorithms classification clustering data-minig java opengl trajectory visualisation

Last synced: 04 May 2025

https://github.com/muoncore/muon-java

Muon Core for the JVM. APIs and Microservices taken to the next level

api ddd event-sourcing events java messaging microservice microservices-architecture reactive

Last synced: 11 Jan 2026

https://github.com/bakdata/kafka-error-handling

A library for error handling in Kafka Streams.

java kafka-streams

Last synced: 10 Apr 2025

https://github.com/nextbreakpoint/nextfractal

NextFractal is an application for creating fractals and other algorithmically generated images

creating-fractals fractal-algorithms fractal-rendering fractals java javafx javafx-application julia-fractal mandelbrot-fractal

Last synced: 17 Jan 2026

https://github.com/pedro-manoel/atal

Repositório com as atividades e matérias desenvolvidas ao longo da disciplina de Análise e Técnica de Algoritmos da UFCG

brute-force dinamic-programming divide-and-conquer graph java python

Last synced: 06 May 2025

https://github.com/ekryd/echo-maven-plugin

A maven plugin that lets you output text during Maven build

echo hacktoberfest java maven maven-plugin output print

Last synced: 20 Aug 2025

https://github.com/jakewins/jaa

Actionable memory analysis for JVM languages

java jvm jvm-performance kotlin openjdk scala

Last synced: 10 Apr 2025

https://github.com/eliasnogueira/health-check-api

An easy way to execute a health check against your API endpoint

api health-check java service test testing

Last synced: 28 Oct 2025

https://github.com/harlonwang/gradle-publish-plugin

Gradle plugin that supported publish all of your Java, Kotlin or Android libraries to any Maven Repository.

android gradle java kotlin library plugin publish

Last synced: 10 Apr 2025

https://github.com/exasol/parquet-io-java

Java library to read Parquet files.

exasol exasol-integration foundation-library java parquet

Last synced: 10 Apr 2025

https://github.com/minhaskamal/alphabetrecognizer

Simple Optical Character Recognizer (english-ocr-image-to-text-recognition-sample-trainig-alphabet-photo-data-database-dataset)

alphabet-recognizer data database english image-processing java machine-learning ocr sample template-matching text-recognition training-data writing

Last synced: 11 Apr 2025

https://github.com/patilshreyas/library-ci

Sample repository to demonstrate usage of GitHub Actions CI's workflow dispatch to automate publishing of a library to Maven Central

android android-library bintray github-actions gradle java jcenter kotlin library mavencentral workflow-dispatch

Last synced: 10 Apr 2025

https://github.com/a7med3del1973/fawry-internship

This Repository contains materials and tasks for the Fawry internship program, This comprehensive program covers both frontend and backend development, equipping me with web technologies Spring and Angular and software engineering principles .

angular design-pattern design-patterns docker fawry-intern java java-8 javascript kubernetes maven microservice oop-principles servelet solid-principles spring spring-boot typescript unit-testing

Last synced: 09 Jul 2025

https://github.com/bertrandmartel/sim-password-wallet

Android application interacting with a JavaCard applet installed on SIM card

android java javacard smartcard

Last synced: 07 May 2025

https://github.com/esoxjem/algorithms

Algos and Data Structures

algorithms data-science dsa java kotlin

Last synced: 06 Mar 2026

https://github.com/hindol/commons

Ad-hoc collection of re-usable Java classes.

ini-parser java url watchservice xml

Last synced: 22 Feb 2026

https://github.com/D4rK7355608/com.d4rk.androidtutorials.java

Android Studio Tutorials: Java Edition is an app that teaches you how to develop Android apps using Android Studio IDE and Java language. You can learn the basics of Android app development, as well as some advanced topics such as binding and Material-You. 📱

android android-app android-application android-apps android-java android-studio android-tutorials d4rk java java-android java-tutorial learning tutorial

Last synced: 21 Apr 2025

https://github.com/berrycloud/xapi-java

Java xAPI model, client and tools

cmi5 java spring tincan xapi

Last synced: 05 Feb 2026

https://github.com/kakarottocui/secondschoolshop

基于java SSM框架的二手校园交易商城平台系统

java jquery ssm

Last synced: 09 Aug 2025

https://github.com/bfg/eureka-dns-server

Eureka DNS Server: RFC 1035/2782 compatible DNS server interface to Netflix Eureka service registry.

dns dns-server eureka eureka-client eureka-server eureka-service-discovery java netty service-discovery

Last synced: 14 Jan 2026

https://github.com/jean-merelis/coffeepot-br-sped-fiscal

br - Componente para escrita do SPED Fiscal

java sped sped-fiscal spedfiscal

Last synced: 20 Feb 2026

https://github.com/benpollarduk/ktvn

A Kotlin library that provides a framework for writing visual novels for JVM. At its core Ktvn provides a flexible and extensible DSL for structuring and writing visual novels and interactive stories.

domain-specific-language dsl engine framework game game-engine interactive interactive-story java kotlin novel story visual visual-novel

Last synced: 15 Apr 2025

https://github.com/lihengming/potato-orm

:pencil:一个简单的ORM框架,寂寞消遣之作~

java orm sql

Last synced: 15 Apr 2025

https://github.com/cyberark/conjur-api-java

Java client for the CyberArk Conjur API

api-client conjbot-notify conjur conjur-core conjur-sdk core java

Last synced: 10 Apr 2026

https://github.com/samourai-wallet/extlibj

BitcoinJ extensions: BIP39/44/47/49/84, bech32

bech32 bip39 bip44 bip47 bip49 bip84 bitcoin bitcoinj java psbt segwit z85

Last synced: 08 Apr 2025

https://github.com/foo4u/conventional-commits-for-java

Conventional commits plugins for Java build systems. Maven only for now.

conventional-commits java maven maven-plugin

Last synced: 24 Apr 2025

https://github.com/fzakaria/ascii85

A Java library for working with Ascii85, also called Base85 - a form of binary-to-text encoding

decoding encoding java

Last synced: 22 Mar 2025

https://github.com/apache/maven-plugin-testing

Apache Maven Plugin Testing

build-management java maven maven-plugins

Last synced: 16 May 2025

https://github.com/stephengold/wes

An animation editing and retargeting library for jMonkeyEngine (code has New BSD license)

animation java jme3 jmonkeyengine jmonkeyengine3 jvm-library library retargeting-animations skeleton-map

Last synced: 14 Apr 2025

https://github.com/vatsalkesarwani12/headlines

HeadLines is a 📰 news app that delivers you with the latest news. It has interactive UI and easy to use. The app can be scrolled offline to watch your bookmarked news. Give this app a try and let me know.

android android-app bookmarks constraint-layout firebase headlines java news newsapi retrofit2 room room-database

Last synced: 23 Mar 2025

https://github.com/tommyettinger/digital

Utilities for handling math and showing numbers in Java.

base hash java math radix trigonometry utility

Last synced: 22 Mar 2025

https://github.com/lambdatest/gauge-selenium-sample

Run test automation on cloud with Gauge and LambdaTest. This is a sample repo to help you execute Gauge framework based test scripts in parallel with LambdaTest automation testing cloud

automation gauge gauge-java java lambdatest selenium test-automation testing webdriver

Last synced: 22 Jul 2025

https://github.com/querystream/querystream

Build JPA Criteria queries using a Stream-like API

java jpa jpa-criteria-api persistence streams

Last synced: 26 Dec 2025

https://github.com/noleme/noleme-flow

A library enabling DAG structuring of data processing programs such as ETLs

dag dataflow etl-pipeline java workflow workflow-engine

Last synced: 12 Jan 2026

https://github.com/grazen0/userlogin

A simple and versatile authentication plugin for Minecraft

bukkit java minecraft spigot

Last synced: 06 Aug 2025

https://github.com/darkhax/opennbt

A Java library for the NBT file format.

java java-library minecraft nbt

Last synced: 25 Jul 2025

https://github.com/unruly/junit-rules

A collection of useful JUnit rules from Unruly's codebases

java junit junit-rule tdd

Last synced: 24 Jul 2025

https://github.com/redhat-middleware-workshops/enter-serverless-functions

This hands-on workshop teaches how developers creates/builds/deploys serverless functions using Quarkus on Knative, AWS Lambda

aws-lambda functions java knative kubernetes microservices openshift quarkus serverless

Last synced: 17 Sep 2025

https://github.com/jgettext/gettext-commons

Internationalization (i18n) through GNU gettext and Java ResourceBundles

gettext-library i18n java maven

Last synced: 16 Sep 2025

https://github.com/aurasphere/bluetooth-java-client

Simple Bluetooth Java client based on the Bluecove library.

bluecove-library bluetooth bluetooth-java-client irc java rfcomm

Last synced: 09 Mar 2026

https://github.com/jayantgoel001/hackerrank

Hacker Rank Solutions

c cpp hackerrank java javascript python

Last synced: 15 Mar 2026

https://github.com/apache/tomcat-training

Apache Tomcat Training Material

http java javaee network-server tomcat

Last synced: 19 Oct 2025

https://github.com/sergiss/voxel-engine

:mount_fuji: Java Voxel Engine

game-development java voxel-engine

Last synced: 15 Oct 2025

https://github.com/cunyu1943/java-in-actions

🎏 Java 实战

java

Last synced: 07 Oct 2025

https://github.com/zhenye-na/lintcode

👨‍💻 This repository contains the solutions and explanations to the algorithm problems on LintCode. All are written in Python/Java/C++ and implemented by myself.

algorithms coding-interviews cpp java lintcode lintcode-problems-practice python

Last synced: 09 Oct 2025

https://github.com/mfvanek/money-transfer-rest-api

Simple implementation of RESTful API for money transfers between accounts

concurrency http-client java java-11 junit5 lombok maven money-transfer rest-api restful-api sparkjava

Last synced: 05 Oct 2025

https://github.com/wpernath/quarkus-grumpycat

A simple fat-cat / packman like multi player game, with a logic server written in Java with Quarkus and a Engine written in JavaScript with the MelonJS game framework.

argocd game game-development gitops html5-canvas java javascript kubernetes melonjs openshift quarkusio tekton-pipelines

Last synced: 25 Feb 2026

https://github.com/JeffersonLab/epics2web

EPICS CA Web Gateway

ace acg epics gateway java websockets

Last synced: 04 Jul 2026

https://github.com/range79/animeizle

Animeizle API is a lightweight and modular backend service designed to manage, serve, and power anime streaming platforms. Built with Spring Boot and Kotlin, this API provides endpoints for users, authentication, anime listings, seasons, episodes, and more.

apache changelog changelong dual-lang gradle half-open-souce intellij java jetbrains jvm kotlin oracle range spring star tomcat

Last synced: 13 Jul 2025

https://github.com/alina-yur/public-speaking

Previous & upcoming conference talks

graalvm java public-speaking

Last synced: 21 Mar 2025

https://github.com/josharsh/Finance-Manager

Finance Manager is an Android Application which contains Income Tax Calculator and EMI Calculator.

android android-application android-development androidsdk androidstudio gradle java xml

Last synced: 13 Apr 2025

https://github.com/minnukota381/calculator-android-studio

A Simple Calculator design using Android Studio

android android-studio java

Last synced: 12 Jul 2025

https://github.com/JakeJMattson/TouchControl

Control at your fingertips.

camera java nircmd opencv touchscreen

Last synced: 09 May 2025

https://github.com/splitbrain/giraffe

A conference schedule planner for Android

android android-application calendar ical ical-parser java scheduling

Last synced: 15 Apr 2025

https://github.com/BeboKhouja/ADB-GUI

ADB GUI is a Java-based GUI addon for ADB.

adb android gui java

Last synced: 13 Apr 2025

https://github.com/xdwangwei/elasticsearch-jd

最简单的ElasticSearch入门练手项目,前后端分离,SpringBoot+ElasticSearch+Vue仿京东搜索,并高亮关键字显示,适合刚学习ES的小伙伴们~~~

elasticsearch java jsoup springboot vue

Last synced: 08 May 2025

https://github.com/kavithma-thushal/computershop-management-system-1st-sem-final

Developed this Standalone Application as the first semester's final project for the Graduate Diploma in Software Engineering at the Institute of Software Engineering

final-project java javafx mysql

Last synced: 11 Jul 2025

https://github.com/jrvansuita/shoppinglist

📝 My very first Android app, a shopping list app.

android android-application checklist java lists markers price quantities shopping shoppinglist

Last synced: 02 Feb 2026

https://github.com/renatoalencar/java-brazuca

Um hack do OpenJDK que suporta Java em Português

java

Last synced: 18 Jul 2025

https://github.com/io7m-com/jspatial

Spatial data structures

java oct-tree quad-tree spatial

Last synced: 21 Jun 2025

https://github.com/yoep/popcorn-fx

Popcorn FX is a multi-platform torrent streaming client that includes an integrated media player with support for embedded devices such as the Raspberry PI.

desktop embedded-systems java javafx media-player raspberry-pi rust streaming tv

Last synced: 02 Apr 2026

https://github.com/stephengold/Wes

An animation editing and retargeting library for jMonkeyEngine (code has New BSD license)

animation java jme3 jmonkeyengine jmonkeyengine3 jvm-library library retargeting-animations skeleton-map

Last synced: 19 Mar 2026

https://github.com/Grazen0/userlogin

A simple and versatile authentication plugin for Minecraft

bukkit java minecraft spigot

Last synced: 10 Mar 2025