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/valpackett/neojamvm

JamVM (lightweight Java Virtual Machine) but built with CMake

jamvm java jvm

Last synced: 22 Apr 2025

https://github.com/expr4j/expr4j

Java library to evaluate mathematical expressions

expression-evaluator java shunting-yard shunting-yard-algorithm

Last synced: 30 Oct 2025

https://github.com/jericks/geometrycommands

Commandline application for manipulating geometry.

cli geometry java jts

Last synced: 17 Dec 2025

https://github.com/luiz-otavio/slime-korld

Lightweight slime library to implement the Slime World Format described in DevBlog 5# from Hypixel.

bukkit gradle java kotlin minecraft mit slime-world

Last synced: 18 Jul 2025

https://github.com/woowacourse-teams/2024-coduo

함께 하면 좋은 코딩, 코딩해듀오 💞

java pair-programming react springboot typescript

Last synced: 13 Apr 2025

https://github.com/marttp/java-tech-interviews-prep

Java source code for technical interview preparation + Apply real world problems

java leetcode technical-interviews

Last synced: 16 Jul 2025

https://github.com/jackhallam/weightless-orm

🛸 A lightweight database mapping library

database java java-orm mongo mongodb orm

Last synced: 23 Jun 2025

https://github.com/omke/ula

Learning/Content Management System for University - Microservice architecture

angular angular9 cms content-management-system docker es6 estudent full-stack java javascript lms microservices mongodb mysql ngrx sass scss spring-boot spring-security

Last synced: 02 Sep 2025

https://github.com/ahoo-wang/simba

Distributed lock service | 分布式锁服务

distributed java kotlin lock mutex mutex-lock redis scheduler spring spring-boot zookeeper

Last synced: 13 Oct 2025

https://github.com/townyadvanced/flagwar

The original war system for Towny, now with it's own repository. Celebrating over Ten Years of warfare.

java minecraft multiplayer paper-api pvp-plugin towny townyadvanced-plugins war

Last synced: 24 Jan 2026

https://github.com/bg-software-llc/ssb-slimeworldmanager

An addon for SuperiorSkyblock2 that adds SlimeWorldManager support for worlds management!

bgsoftware java minecraft plugin skyblock spigot superiorskyblock

Last synced: 19 Oct 2025

https://github.com/apache/pekko-connectors-kafka

Apache Pekko Kafka Connector - Pekko-Connectors is a Reactive Enterprise Integration library for Java and Scala, based on Reactive Streams and Apache Pekko.

integration java kafka kafka-client kafka-connector pekko pekko-connnectors pekko-streams reactive reactive-streams scala

Last synced: 19 Oct 2025

https://github.com/4drian3d/kickredirect

Redirect your players to a server after a server shutdown

java minecraft minecraft-plugin plugin velocity velocity-plugin velocitypowered

Last synced: 14 Apr 2025

https://github.com/appbaseio/appbase-droid

Elasticsearch and appbase.io library for Android (and Java)

android appbase elasticsearch elasticsearch-client java

Last synced: 26 Jun 2025

https://github.com/idpass/idpass-lite-java

Java wrapper for idpass-lite, a library to create and interact with secure and biometrically-binding QR code identity cards

biometrics digital-identity identity-cards java

Last synced: 04 Mar 2026

https://github.com/calimero-project/calimero-gui

A graphical user interface for Calimero based on the Eclipse Standard Widget Toolkit (SWT)

gui java knx swt

Last synced: 22 Jul 2025

https://github.com/arun-gupta/chatbot

Build Your First Chatbot

alexa chatbot java serverless slack starwars

Last synced: 09 Jan 2026

https://github.com/oktadev/okta-react-photo-gallery-example

A Photo Gallery Example with React, Spring Boot, and JHipster 5 + Auth by Okta

java jhipster reactjs spring-boot typescript

Last synced: 11 Apr 2025

https://github.com/pizz33/spring-cloud-function-spel

spring-cloud-function SpEL RCE复现环境&poc

java poc rce

Last synced: 05 May 2025

https://github.com/rapter1990/footballteamapi

Case Study - Football Team Api with Hexagonal Architecture (Java 21, Spring Boot, Postgres, JUnit, Spring Security, JWT, Docker, Kubernetes, Prometheus, Grafana, Loki, Sonarqube, Github Actions (CI/CD), TestContainer)

docker docker-compose github-actions grafana hexagonal-architecture java java21 junit kubernetes loki postgres prometheus sonarqube spring-security sprng-boot swagger testcontainers

Last synced: 30 Jun 2026

https://github.com/rohan23chhabra/p2p

Practice project to demonstrate p2p file sharing.

java java-8 java8 javafx javafx-application jfoenix network networking peer-to-peer shared

Last synced: 10 Apr 2025

https://github.com/ivangfr/springboot-vault-examples

The goal of this project is to explore the capabilities of Vault. To achieve this, we will develop applications that utilize Vault for storing and retrieving secrets. Vault dynamically generates credentials for accessing databases and relies on Consul as the backend. The authentication method employed in Vault is AppRole.

cassandra consul docker java jib mysql spring-boot spring-cloud-vault spring-data-jpa spring-vault spring-web-mvc springdoc-openapi vault

Last synced: 10 Apr 2025

https://github.com/drsnowbird/knime-docker

KNIME Analytics Platform & SDK with Docker Container in X11 desktop

analytics-platform docker docker-container java knime knime-analytics-platform machine-learning x11

Last synced: 10 Apr 2025

https://github.com/spiderpig86/metromapmaker

:bullettrain_side: Build the metro map of your dreams.

java javafx javafx-application map metro subway underground

Last synced: 10 Apr 2025

https://github.com/thriving-dev/kafka-streams-cassandra-state-store

'Drop-in' Kafka Streams State Store implementation that persists data to Apache Cassandra / ScyllaDB

apache-cassandra cassandra java kafka-streams stream-processing

Last synced: 10 Apr 2025

https://github.com/jinhucheung/hubplayer

以酷狗音乐播放器的用户界面为原型, 制作的一个基于 Java Sound, 实现播放、搜索、下载的音乐播放器

java java-sound java-swing jsoup music-player substance

Last synced: 30 Apr 2025

https://github.com/stevenschwenke/javafxworkshop

Code and a handout for a JavaFX workshop

fxml java javafx javafx-application scene-builder workshop

Last synced: 10 Apr 2025

https://github.com/trigary/iodine

A Minecraft mod - server plugin pair that adds custom GUIs and overlays. No more inventory and chat menus!

bukkit bukkit-plugin forge forge-mod java minecraft minecraft-forge minecraft-forge-mod minecraft-mod

Last synced: 12 Apr 2025

https://github.com/emufog/emufog

EmuFog: Extensible and Scalable Emulation of Large-Scale Fog Computing Infrastructures

fog-computing java

Last synced: 11 Jan 2026

https://github.com/objectos/objectos.way

A new way for building Java applications: the Objectos Way

java library web webapp

Last synced: 08 Mar 2026

https://github.com/inkatze/wildfly

Ansible role for wildfly

ansible ansible-role java wildfly

Last synced: 25 Jan 2026

https://github.com/owmii/powah

Discord:

java minecraft mod powah

Last synced: 10 Sep 2025

https://github.com/stevekung/moreplanets

An add-on adds new exotic planets into Galacticraft!

custom-planets forge galacticraft java minecraft moreplanets planet planets

Last synced: 22 Mar 2025

https://github.com/eikek/sbt-openapi-schema

Generate schema sources for Scala, Java and Elm from an openapi 3.0 spec.

elm java openapi openapi-codegen openapi3 sbt-plugin scala

Last synced: 06 Nov 2025

https://github.com/tupilabs/humannameparser.java

HumanNameParser.java, a Java port of HumanNameParser.php. Parser for human names in Java, all credit goes to @jasonpriem

hacktoberfest java name nlp textprocessing

Last synced: 30 Jul 2025

https://github.com/smalam119/Easy-Signature-Android

Android library which provides a signature view.

android java

Last synced: 03 Aug 2025

https://github.com/hms-core/hms-scene-demo

HMS Scene kit demo provides an example of integrating HUAWEI Scene Kit with an app. A 3D graphics rendering engine performs more with less. User-friendly rendering APIs for games, AR & VR apps, and other apps bring your users a stunning visual experience.

3d-graphics android graphics hms huawei java scenekit

Last synced: 01 Aug 2025

https://github.com/makiftutuncu/e

A zero-dependency micro library to deal with errors

circe gson java junit5 jvm kotlin mdoc play-json sbt scala zio

Last synced: 13 Apr 2025

https://github.com/tolitius/mongodb-write-performance-playground

Playing with MongoDB Write Performance

c java mongodb performance

Last synced: 08 Jul 2025

https://github.com/jgperrin/net.jgp.books.spark.ch03

Spark in Action, 2nd edition - chapter 3

apache-spark dataframe java java8 manning spark sparkwithjava

Last synced: 06 May 2025

https://github.com/justinsdk/servletjsptutorial

《Servlet & JSP 技術手冊 - 從 Servlet 到 Spring Boot》相關資源

java javaee8 javamail jdbctemplate jsp servlet spring spring-mvc spring-security spring-thymeleaf

Last synced: 08 Apr 2025

https://github.com/alexanderpro/stepik

Решения для курсов на платформе stepik.org

certificate cpp cs csharp database db graphics java javascript js linux mysql security stepic stepik web

Last synced: 11 Apr 2025

https://github.com/Revxrsal/Tuna-Bytes

An all-purpose mixins framework for Java bytecode manipulation at runtime, targeted at those with minimal understanding of the bytecode structure.

bytecode bytecode-manipulation classloader java mixins

Last synced: 10 May 2025

https://github.com/rapter1990/cqrs-example

Spring Boot CQRS Example (Docker, Apache Kafka, Zookeeper, MYSQL, MongoDB)

apache-kafka cqrs docker docker-compose java kafka lombok mediator mongodb mysql spring-boot zookeeper

Last synced: 16 May 2025

https://github.com/platypusguy/filededupe

Utility to list duplicate files in one or more directories based on the file contents

filemanager filesystem java utility

Last synced: 26 Oct 2025

https://github.com/raonigabriel/spring-qrcode-example

Demonstrates some of the capabilities of the Spring Boot framework through a small, simple example.

java microservice qrcode spring-boot zxing

Last synced: 13 Oct 2025

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

Maven plugin for computing code coverage on modified code

code-coverage coverage diff diff-coverage jacoco java kotlin maven maven-plugin

Last synced: 01 Apr 2026

https://github.com/d2si-oss/ooso

Java library for running Serverless MapReduce jobs

aws java lambda library mapreduce serverless

Last synced: 13 Oct 2025

https://github.com/coding-enthusiast9857/hacktoberfest22-contribute-dsa

Hacktoberfest 2022🎉 Guys, open your 1st pull request and contribute in an open-source community...!! This is for everyone💯 So, Hurry up...!! Don't forget to spread love and if you like, give a ⭐️

c cpp data-structures data-structures-algorithms data-structures-and-algorithms digitalocean dsa dsa-learning dsa-practice hacktoberfest hacktoberfest2022 hacktoberfest22 java open-source open-source-project python

Last synced: 19 Oct 2025

https://github.com/jedwards1211/jhrome

Google Chrome-style tabbed panes for Java!

chrome-tabs java java-swing look-and-feel swing tabbed-view

Last synced: 24 Oct 2025

https://github.com/pragmatic-objects/oo-atom

A Java polyfill for better code design

elegantobjects java oop polyfill solid

Last synced: 12 Jan 2026

https://github.com/symflower/symflower

Whether you’re using LLMs or not, Symflower helps you build better software by pairing static, dynamic and symbolic analyses with LLMs. The robustness of deterministic analyses combined with the creativity of LLMs allows for higher quality and rapid software development.

ci golang intellij-plugin java linting llm test-automation testing testing-tools unit-testing vscode-extension

Last synced: 19 Feb 2026

https://github.com/burtcorp/athena-jdbc

A JDBC driver for AWS Athena

aws-athena java jdbc jdbc-driver

Last synced: 14 Jan 2026

https://github.com/wkrzywiec/wawa-tabor

Android app that presents location of Warsaw buses and trams.

android api java jetpack-android json junit mvvm mvvm-android rxjava2

Last synced: 26 Mar 2025

https://github.com/valetzx/mcserveronreplit

白嫖3G我的世界服务器

java minecraft replit

Last synced: 09 Apr 2025

https://github.com/leonardpepa/pathfinding-visualizer

Pathfinding Visualizer application that visualizes graph based search algorithms used to find the shortest path. Algorithms used: Breadth first search, Depth first search, Best first search and A* search made with java swing

astar astar-algorithm astar-pathfinding astar-search-algorithm best-first-search bfs breadth-first-search depth-first-search dfs dsa-algorithm java leonard leonardpepa pathfinder pathfinding pepa shortest-path-algorithm shortest-paths visualization visualizer

Last synced: 29 Oct 2025

https://github.com/kobee1203/schema-org-java

Java library for working with Schema.org data in JSON-LD format

entity generator java java-model json json-ld json-schema maven maven-plugin model pojo schema schema-org seo serializer

Last synced: 09 Apr 2025

https://github.com/approov/android-hide-secrets

An exercise to research and explore the best ways to hide a secret in the code of a mobile app. Article: https://blog.approov.io/how-to-extract-an-api-key-from-a-mobile-app-with-static-binary-analysis

android api-key api-keys approov approov-demo java jni jni-android mobile mobile-app mobile-development secrets

Last synced: 03 Aug 2025

https://github.com/Jolanrensen/KoDEx

/** KoDEx */: Kotlin Documentation Extensions. KDoc preprocessor Gradle plugin and IDEA plugin (Beta).

documentation documentation-generator documentation-tool gradle gradle-plugin java javadoc javadocs kdoc kdocs kotlin library library-management plugin plugins preprocessor preprocessors

Last synced: 16 Mar 2025

https://github.com/devcsrj/mvnrepository-client

📦Client for querying artifacts from http://mvnrepository.com/

artifacts client java library maven repository

Last synced: 09 Apr 2025

https://github.com/piomin/kubernetes-quickstart

Demo Java apps for several scenarios on Kubernetes

java jib kafka kubernetes skaffold spring-boot

Last synced: 16 Mar 2025

https://github.com/youse-seguradora/form

Repository for kotlin form validation

android form formatter java kotlin validation

Last synced: 22 Apr 2025

https://github.com/hoangsonww/Space-Invader-Game-JavaFX

👾 Embark on an exhilarating journey with SpaceInvader, a thrilling experience as you navigate through cosmic challenges and face off against alien invaders. Crafted with JavaFX, SpaceInvader combines stunning visuals and engaging gameplay to create a truly immersive experience.

game game-development gamedev java javafx javascript space-invaders space-shooter space-shooter-game

Last synced: 07 May 2025

https://github.com/infumia/agones4j

Java wrapper for Agones client SDK.

agones grpc java

Last synced: 10 Apr 2025

https://github.com/camunda-community-hub/micronaut-camunda-external-client

This open source project allows you to easily integrate Camunda's External Task Clients into Micronaut projects: simply add a dependency in your Micronaut project

bpm business-process camunda external-task external-task-pattern graalvm hacktoberfest java kotllin micronaut microservice workflow

Last synced: 13 Jul 2025

https://github.com/taywils/java_spark_tutorial

Code for tutorial on my blog http://taywils.me/2013/11/05/javasparkframeworktutorial/

java sparkjava

Last synced: 07 May 2025

https://github.com/revxrsal/tuna-bytes

An all-purpose mixins framework for Java bytecode manipulation at runtime, targeted at those with minimal understanding of the bytecode structure.

bytecode bytecode-manipulation classloader java mixins

Last synced: 23 Mar 2025

https://github.com/gbzarelli/kart-race-importer

[JAVA] The 'Kart Race Importer' is a project to import data held in log files - Gympass technical challenge (approved)

clean-architecture gradle java jdk13 kart kart-race-importer without-framework

Last synced: 14 Apr 2025

https://github.com/mirkosertic/hystrixspring

This shows how to embedd Hystrix in a non invasive manner into existing Spring applications.

hystrix java resiliency spring

Last synced: 16 Apr 2025

https://github.com/vinceh121/gmcserver

Lightweight server to log, analyze and proxy data measured by internet connected Geiger counters

debian geiger-counter gmc gpl java react vertx

Last synced: 02 May 2025

https://github.com/exconvinced/revanced-web-app

🚀 A Flask web implementation of the popular ReVanced

aapt android cs50 cs50x flask html java javascript python revanced sqlite3 tailwindcss

Last synced: 02 Sep 2025

https://github.com/myopenresources/cc-s

一个基于spring boot、druid、mybatis、mysql的后端基础

cc druid java mybatis mysql spring spring-boot

Last synced: 07 Apr 2025

https://github.com/hoangsonww/tic-tac-toe-ai-game

🎲 This project showcases an interactive Tic-Tac-Toe experience, enhanced by sophisticated artificial intelligence. Developed from the ground up, the game features intricate algorithms designed to challenge and engage players at every level.

ai artificial-intelligence game java javafx machine-learning machine-learning-algorithms tic-tac-toe tic-tac-toe-game tic-tac-toe-java tictactoe tictactoe-game

Last synced: 26 Oct 2025

https://github.com/polyhedraldev/paralithic

Super fast expression evaluator/parser written in Java

expression-evaluator expression-parser hacktoberfest java objectweb-asm performance

Last synced: 05 Apr 2025

https://github.com/brian-lau/matlabprocessmanager

Matlab class for launching and managing asynchronous processes

java matlab

Last synced: 17 Aug 2025