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/afarber/android-questions

Small projects for asking at Stackoverflow

android java stackoverflow

Last synced: 05 Oct 2025

https://github.com/coralblocks/coralcpp

Call Java from C++ and C++ from Java with a variety of old and new projects like JNI, JNA, JNR, FFM, JExtract, BridJ, GraalVM, JNI-Bind, etc.

bridj cpp ffm graalvm graalvm-native-image java jextract jna jni jni-bind jnr jnr-ffi jvm

Last synced: 28 Apr 2025

https://github.com/gw-kit/delta-coverage-plugin

Gradle plugin and CLI for computing code coverage of new/modified code based on a diff

code-coverage diff gradle-plugin intellij-coverage jacoco java kotlin

Last synced: 12 Mar 2026

https://github.com/pisces-hub/muchat

Muchat是用JAVA语言开发的轻量、高性能、单机支持几十万至百万在线用户IM,主要目标降低即时通讯门槛,快速打造低成本接入在线IM系统,通过极简洁的消息格式就可以实现多端不同协议间的消息发送如内置(Http、Websocket、Tcp自定义IM协议)

chat im java netty redis springboot tcp zookeeper

Last synced: 12 Apr 2025

https://github.com/yegor256/hangman

Hangman (the game) written in a very unelegant procedural style, which you can improve in order to test your skills

game hangman-game java oop

Last synced: 07 Apr 2025

https://github.com/mihaicostin/hibernate-l2-memcached

Hibernate second level cache implementation over memcached

hibernate java memcached second-level-cache

Last synced: 14 Jan 2026

https://github.com/sing-group/gc4s

GUI Components for (Java) Swing

gui gui-components java library swing

Last synced: 03 Jul 2025

https://github.com/glenncai/open-bi-platform-backend-microservices

An open-source business intelligence platform based on microservice architecture.

eureka java mysql openai rabbitmq redis spring-boot spring-cloud spring-cloud-config spring-cloud-gateway

Last synced: 04 Jul 2025

https://github.com/jp1016/superbadge

🚀 📛 SuperBadge Android Library 🔥

android android-library badge chip custom-view java library rating

Last synced: 07 May 2025

https://github.com/a2ap/a2a4j

A2A4J is a comprehensive Java implementation of the Agent2Agent Protocol, including server, client, examples, and starters.

a2a a2a-client a2a-protocol a2a-server ai java llm mcp spring springboot

Last synced: 14 Jan 2026

https://github.com/gcoronelc/peci-java-mar-2015

Repositorio del curso de Java de Mar 2015

java jdbc mybatis mysql netbeans oracle spring sql

Last synced: 06 Apr 2025

https://github.com/vigna/dsiutils

The DSI Utilities are a mishmash of classes accumulated during the last twenty years in projects developed at the DSI (Dipartimento di Scienze dell'Informazione, i.e., Information Sciences Department), now DI (Dipartimento di Informatica, i.e., Informatics Department), of the Università degli Studi di Milano.

data-structures java mutable-strings pseudorandom-number-generator

Last synced: 07 Jul 2025

https://github.com/andriawan/AndKasir

AndKasir merupakan aplikasi open source yang dibangun dengan bahasa pemrograman Java untuk kebutuhan retail perusahaan menengah dalam mengatur aktifitas barang masuk dan keluar. konsultasi isu, instalasi dan penambahan fitur silahkan kirim email ke irwan@andriawan.com

java kasir point-of-sale

Last synced: 13 Apr 2025

https://github.com/ivangfr/springboot-kong-keycloak

Goal: create a Spring Boot app called book-service accessible only through the Kong API gateway. In Kong, the kong-oidc plugin will be installed, enabling communication between Kong and Keycloak. This setup ensures that when Kong receives a request for book-service, it validates the request in conjunction with Keycloak to ensure its authenticity.

docker graalvm java keycloak kong kong-oidc mongodb mysql native postgresql spring-boot spring-data-mongodb spring-web-mvc

Last synced: 10 Apr 2025

https://github.com/cronn/ssh-proxy

Pure Java implementation for SSH port tunneling that understands ProxyJump and ProxyCommand

java ssh tunnel

Last synced: 01 May 2025

https://github.com/phax/en16931-cii2ubl

Converter for EN16931 invoices from CII to UBL

cii converter creditnote en16931 invoice java oasis ubl

Last synced: 29 Dec 2025

https://github.com/michaelbull/rs-api

An open-source implementation of a web-service client, written in Java, that allows interaction with the various APIs available for the popular MMORPG; RuneScape.

api client java runescape

Last synced: 10 Jul 2025

https://github.com/didinj/spring-boot-mongodb-react-java-crud

Spring Boot, MongoDB and React.js CRUD Java Web Application Example

application boot crud example java mongo mongodb react reactjs spring spring-boot tutorial web webapp

Last synced: 24 Apr 2025

https://github.com/binghe001/binghe001.github.io

📚 本静态博客是作者冰河多年从事多年互联网大厂开发、架构的学习历程技术汇总,旨在为大家提供一个清晰详细的学习教程,侧重点更倾向编写Java核心内容、底层原理、架构知识、渗透技术。如果本仓库能为您提供帮助,请给予支持(关注、点赞、分享)!

aop asm bigdata bytecode ddd dubbo hacker ioc java javafx javassist mybatis mysql spring springboot springcloud springcloudalibaba

Last synced: 09 Aug 2025

https://github.com/valmobile/realisticsurvival

Realistic Survival - A unique Spigot/Paper plugin inspired by RLCraft that aims to enhance pure survival, adventuring and RPG, and immersion of vanilla Minecraft.

bukkit discord java minecraft modded modded-minecraft modpack mods open-source paper papermc plugin spigot spigotmc survival

Last synced: 14 Mar 2026

https://github.com/amanmehara/programming

A polyglot collection of algorithms and code snippets.

c c-plus-plus c-sharp f-sharp groovy hacktoberfest java javascript php python scala sql

Last synced: 15 Feb 2026

https://github.com/col-e/ll-java-zip

Lower level ZIP support for Java

java zip zipfile

Last synced: 16 Mar 2026

https://github.com/mmtk/mmtk-openjdk

OpenJDK binding for MMTk

java mmtk openjdk vm

Last synced: 10 Feb 2026

https://github.com/professorjosedeassis/javaee

Java WEB Level 1 (Servlet - jsp - JDBC)

crud itextpdf java javaee jdbc jdbc-driver jsp mysql servlet

Last synced: 28 Feb 2026

https://github.com/thomasnield/dirtyfx

Dirty state-tracking properties and collections for JavaFX

java javafx kotlin tornadofx

Last synced: 03 Mar 2026

https://github.com/mishmash-io/opentelemetry-server-embedded

OpenTelemetry and logs, metrics, traces, profiles analytics, united by mishmash io.

apache druid java opentelemetry otlp parquet superset vertx

Last synced: 11 Feb 2026

https://github.com/akhuntsaria/spring-boot-api-gateway

API authentication gateway written using Spring Boot, Zuul, Eureka and JWT.

eureka java jwt microservices spring spring-boot zuul zuul-proxy

Last synced: 17 Jan 2026

https://github.com/open-learning-exchange/myplanet

🌕 myPlanet android app reads data from 🌎 for offline use as well as it collect usage data and sends them back to the Planet.

android-device android-studio apk hacktoberfest java kotlin learning planet realm sync

Last synced: 01 Jul 2026

https://github.com/materna-se/declab

📊 Web-based decision model laboratory powered by jDEC and Vue.js

decision-management decision-model dmn docker java javascript vue

Last synced: 09 Sep 2025

https://github.com/Hangman/TuningFork

Advanced 3D audio features for libGDX desktop users.

audio audio-engine audioengine game-development java libgdx sound sound-effects

Last synced: 01 Apr 2025

https://github.com/taketoday/today-web

😐 A Java library for building web applications

framework high-performance java java-web lightweight servlet springmvc

Last synced: 03 Oct 2025

https://github.com/gurubalan-git/ccc

Code. Compete. Collaborate. An initiative taken to code and help people code from A-Z aimed majorly at placements, by collaborators from around the globe.

c campus-placements coding-challenge coding-interviews coding-standards community-project competitive-coding competitive-programming cpp java open-source placements python

Last synced: 25 Jul 2025

https://github.com/chriy/pighelper

:pig:基于Hybrid+SSM的养猪信息化管理平台,该平台实现了对实时新闻,猪价的爬虫获取,以及各类养殖账单的增删改查等等。该项目适配了移动端界面,最终通过Hybrid混合式App开发技术打包成App,安装在移动端使用

java layui mybatis spring spring-mvc

Last synced: 26 Aug 2025

https://github.com/brunobonacci/1config

A command line tool and a library to manage application secrets and configuration safely and effectively.

aws aws-lambda clojure configuration configuration-management java security

Last synced: 17 Mar 2025

https://github.com/venwyhk/spring-social-wechat

基于spring-social微信第三方登录实现,支持微信开放平台、微信公众平台和企业微信。

java oauth2 spring-boot spring-social wechat wecom

Last synced: 02 Aug 2025

https://github.com/crowdcode-de/kissmda

Keep It Simple Stupid, MDA!

java mda uml

Last synced: 15 Jun 2025

https://github.com/orienteerbap/wicket-orientdb

Everything you need to work with Apache Wicket and OrientDB

java orientdb orienteer wicket

Last synced: 18 Dec 2025

https://github.com/kimkevin/HangulParser

[Java&Android] HangulParser is to parse Hangul to Jaso(basic consonant and vowel) by using Unicode

android hangul java unicode vowel

Last synced: 11 May 2025

https://github.com/kojofosu/TwitterApiKit

Twitter's API v2 Objectified. This will save you time from creating data objects to access twitter's API v2. This library is supported on Gradle, Maven, Java, Kotlin, and Android projects.

android api gradle java kotlin maven twitter twitterapi

Last synced: 08 May 2025

https://github.com/llorllale/cactoos-matchers

Elegant object-oriented hamcrest matchers

cactoos elegantobjects hamcrest-matchers java junit oop unit-test

Last synced: 27 Mar 2025

https://github.com/caveofprogramming/spring-framework-course

Source code for the Cave of Programming Spring Framework tutorial

java spring springframework springmvc

Last synced: 29 Oct 2025

https://github.com/buaadreamer/buaa-compile-2021

2021年北航编译课程设计,基于SysY文法的MIPS编译器

c compiler java

Last synced: 11 Apr 2025

https://github.com/albfernandez/itext2

Java Library to create and manipulate PDF on the fly

java

Last synced: 14 Jan 2026

https://github.com/pubref/rules_maven

Transitive maven dependencies with Bazel.

bazel gradle java maven transitive-closure

Last synced: 04 Sep 2025

https://github.com/kyoripowered/indra

A set of Gradle plugins to apply common organization build settings.

gradle-plugin hacktoberfest java kotlin

Last synced: 06 May 2025

https://github.com/bamless/interpreter

A simple intepreter written in java.

c compiler interpreter java

Last synced: 07 May 2025

https://github.com/gigaherz/toolbelt

A simple mod that adds a belt for carrying tools

forge-mod java java-8 minecraft minecraft-forge-mod minecraft-mod

Last synced: 11 Oct 2025

https://github.com/hexensemble/gb-usb-64m-cart-mac

macOS app for the “GB USB Smart Card 64M” Gameboy cartridge. 💾

cartridges gameboy java macosx

Last synced: 19 Apr 2025

https://github.com/mnestorov/regex-patterns

This repository contains regular expression (regex) patterns for validating phone numbers postal codes, VAT numbers, dates, currency, credit/debit cards etc. for European countries (but not only).

csharp csharp-regex european java java-regex javascript javascript-regex js-regex php php-regex python python-regex regex regex-match regex-pattern regex-patterns regex-validator ruby

Last synced: 12 Jul 2025

https://github.com/bspfsystems/yamlconfiguration

Implementation of SnakeYAML to be easy to use with files.

java

Last synced: 21 Jun 2025

https://github.com/chargebee/chargebee-java

Java library for the Chargebee API.

chargebee java

Last synced: 15 Jun 2026

https://github.com/porkstudios/porklib

Fast, lightweight libraries for Java. Note: this is very much a work-in-progress, documentation is spotty and the API is changing constantly!

high-performance java library modular

Last synced: 19 Jul 2025

https://github.com/mariazevedo88/artigo-solid-medium

Implementações dos exemplos demonstrados no artigo: https://bit.ly/2o97vY1

artigo exemplos-demonstrados java java-8 medium medium-article solid solid-principles

Last synced: 19 Apr 2025

https://github.com/midtrans/midtrans-java

This is the Official Java API client/library for Midtrans Payment API. Visit https://midtrans.com. More information about the product and see documentation at http://docs.midtrans.com for more technical details

java java-library midtrans payment-gateway

Last synced: 21 Aug 2025

https://github.com/ugioni/selenium-webdriver-java

Cucumber, Selenium WebDriver, Junit, Java and Maven.

e2e java selenium selenium-webdriver webdriver

Last synced: 02 May 2025

https://github.com/dyleaf/wechat

Wechat: 一款使用javafx实现的网络聊天室。

chat emoji java javafx-gui

Last synced: 10 Apr 2025

https://github.com/ivangfr/spring-data-jpa-r2dbc-mysql-stream-million-records

In this project, we will implement two Spring Boot Java Web application called, streamer-data-jpa and streamer-data-r2dbc. They both will fetch 1 million of customer's data from MySQL and stream them to Kafka. The main goal is to compare the application's performance and resource utilization.

cadvisor docker java jconsole jib kafdrop kafka mysql spring-boot spring-cloud-stream spring-data-jpa spring-data-r2dbc spring-web-mvc spring-webflux

Last synced: 10 Apr 2025

https://github.com/andy-goryachev/fxeditor

JavaFX rich text editor able to handle billions of lines (WORK IN PROGRESS)

handle-billions java javafx javafx-components javafx-desktop-apps javafx-gui

Last synced: 10 Apr 2025

https://github.com/alexprut/design-patterns-java

📗 Classic OOP Design Patterns from GoF, implemented in Java.

design-patterns gof java oop

Last synced: 30 Apr 2025

https://github.com/tangorabox/componentinspector

Java Desktop (JavaFX and Swing) Component Inspector on mouse over

component component-inspector desktop inspector java javafx node swing

Last synced: 10 Apr 2025

https://github.com/neo4j/neo4j-java-driver-spring-boot-starter

Automatic configuration of Neo4j's Java Driver for Spring Boot applications

bolt driver java neo4j neo4j-driver spring-boot spring-boot-starter

Last synced: 30 Sep 2025

https://github.com/commonjava/indy

Simple artifact proxy for maven and similar build tools

java maven npm repository-management

Last synced: 24 Dec 2025

https://github.com/OrienteerBAP/wicket-orientdb

Everything you need to work with Apache Wicket and OrientDB

java orientdb orienteer wicket

Last synced: 13 Mar 2025

https://github.com/Commonjava/indy

Simple artifact proxy for maven and similar build tools

java maven npm repository-management

Last synced: 07 Oct 2025

https://github.com/qinhanmin2014/leetcode-solutions

LeetCode Solutions in Python, Java and C++

cpp java leetcode python

Last synced: 15 Apr 2025

https://github.com/chinalike/jsbridge

Android 中 WebView 与原生通信

bridge java javascript webview

Last synced: 14 Jul 2025

https://github.com/oeljeklaus-you/loganalyzehelper

论坛日志分析系统清洗程序(包含IP规则库,UDF开发,MapReduce程序,日志数据)

hadoop java

Last synced: 28 Jun 2025

https://github.com/sap/sailing-analytics

The Sailing Analytics, formerly known as the "SAP Sailing Analytics," are a solution for portraying and analyzing sailing regattas, support training scenarios, and power the vast archive at https://sapsailing.com.

analytics android gwt java osgi sailing sap web

Last synced: 28 Jun 2026

https://github.com/cicsdev/cics-banking-sample-application-cbsa

CICS® banking sample application

java maven-pom spring-boot

Last synced: 05 Mar 2026

https://github.com/tsegall/fta

Metadata/data identification Java library. Identifies Semantic Type information (e.g. Gender, Age, Color, Country,...). Extensive country/language support. Extensible via user-defined plugins. Comprehensive Profiling support.

data-discovery data-profiler data-profiling date java metadata semantic-type-detection semantic-typechecking semantic-types

Last synced: 11 May 2026

https://github.com/lovethefrogs/optigraph

Optimum graph creation and distribution for underground networks.

algorithms graph gui java

Last synced: 14 Apr 2025

https://github.com/stevespringett/cvss-calculator

A Java library for calculating CVSSv2 and CVSSv3 scores and vectors

cvss cvssv2 cvssv3 java library nist nvd

Last synced: 06 Apr 2025

https://github.com/kojofosu/twitterapikit

Twitter's API v2 Objectified. This will save you time from creating data objects to access twitter's API v2. This library is supported on Gradle, Maven, Java, Kotlin, and Android projects.

android api gradle java kotlin maven twitter twitterapi

Last synced: 22 Mar 2025

https://github.com/reime005/react-native-secure-element

The most secure way to encrypt and decrypt personal data on a mobile device. Automatically E2E tested and deployed via Github Actions CI/CD.

android hacktoberfest ios java keychain keystore objc react react-native security typescript

Last synced: 06 Apr 2025

https://github.com/idouble/iot-arduino-game-controller-java

🎮 A Game controller realized with an Arduino, I modified the Arduino bootloader to program with Java ☕️

analog arduino arduino-boards arduino-game arduino-library arduino-sketch arduino-uno bootloader cheatsheet controller digital game-controller internet-of-things iot java keyboard mouse

Last synced: 08 Mar 2026

https://github.com/hoangsonww/the-stickynotes-app

📌 Welcome to The StickyNotes App, your new digital space for quick notes, brainstorming ideas, and keeping track of tasks. There are both web app and mobile versions - the latter is under review and will be published soon!

cordova cql css html java javascript kotlin machine-learning note note-taking notebook notes notes-app notes-tool pytorch react sql sticky-notes swift

Last synced: 01 Jul 2025

https://github.com/yihleego/trie4j

📒 An Aho-Corasick algorithm based string-searching utility for Java. It supports tokenization, ignoring case, replacing text. So you can use it to find keywords in an article, filter sensitive words, etc.

aho-corasick go java keywords sensitive stopwords string-searching

Last synced: 15 Jul 2025

https://github.com/depromeet/14th-team5-be

디프만 14기 개발하다가 5잉~ 금지 SERVER 🖥️

backend java jpa mvc springboot

Last synced: 04 Mar 2026

https://github.com/KyoriPowered/event

An event bus.

eventbus java

Last synced: 26 Apr 2026

https://github.com/orienteerbap/vuecket

Power of Vue.JS married with magic of Apache Wicket

java vue vuejs web-framework webfr wicket

Last synced: 05 Oct 2025