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/normangyllenhaal/spring-boot-payment-starter

google play 和 appstore 服务端支付校验

appstore googleplay java payment spring springboot

Last synced: 22 Oct 2025

https://github.com/screamingsandals/screaminglib

Cross-platform library for Minecraft development. Currently WIP, but usable and we will finish it eventually

bukkit-library cross-platform-api java minecraft

Last synced: 01 Nov 2025

https://github.com/apache/creadur-rat

Apache Creadur RAT - Release Audit Tool

apache cli creadur java licensechecker maven rat

Last synced: 06 Apr 2025

https://github.com/macacajs/wd.java

Java Client binding for Macaca

java macaca webdriver

Last synced: 02 Aug 2025

https://github.com/andy489/data_structures_and_algorithms

Data structures. Algorithms. Problems and Solutions.

algorithms cpp data-structures java

Last synced: 26 Jul 2025

https://github.com/jenkins-zh/jenkins-client-java

Java实现的对Jenkins操作

client java jenkins

Last synced: 03 Jan 2026

https://github.com/1and1/snmpman

Easy massive SNMP-agent simulation with the use of simple YAML files

agent docker-image java parallel simulator snmp snmp-agent snmp4j test

Last synced: 02 Oct 2025

https://github.com/guobinhit/design-pattern

🌴 Detail design pattern and give many demos in Java.

design-pattern factory java observable singleton

Last synced: 01 May 2025

https://github.com/aws-samples/amazon-kinesis-timestream-grafana

Sample serverless application that reads events from Amazon Kinesis Data Streams and batches records to Amazon Timestream via Apache Flink app, visualizing results via Grafana.

amazon-kinesis amazon-kinesis-data-analytics-flink amazon-kinesis-streams amazon-timestream amazon-web-services analytics aws aws-cdk aws-lambda gradle grafa java java-11 kotlin

Last synced: 18 Jul 2025

https://github.com/javasync/rxio

Asynchronous non-blocking File Reader and Writer library for Java

asynchronous java java-nio non-blocking

Last synced: 11 Jan 2026

https://github.com/dehora/nakadi-java

🌀 Client library for the Nakadi Event Broker (examples: http://bit.ly/njc-examples, site: https://dehora.github.io/nakadi-java/)

gson java nakadi rxjava

Last synced: 16 May 2025

https://github.com/chuckb/haikuVM

A small JAVA VM for microcontrollers

arduino arm avr bare-metal gradle java jvm raspberry-pi

Last synced: 27 Feb 2025

https://github.com/felleslosninger/efm-asic

Generic implementation of ASiC-E archives in accordance with ETSI 102 918 v1.3.1.

eformidling java library spring-boot team-eformidling

Last synced: 28 Feb 2026

https://github.com/masesgroup/jnet

Java/JVM suite for .NET: a comprehensive suite of libraries and tools to use Java/JVM APIs (Java, Scala, Kotlin, ...) and .NET side-by-side

clr dotnet dotnet-core dotnet6 dotnet8 java jvm kotlin netcore scala

Last synced: 07 Jun 2026

https://github.com/aematsubara/realisticvillagers

Forget about those boring villagers and replace them with interactive humans!

bukkit bukkit-plugin java minecraft paper paper-plugin plugin spigot spigot-plugin spigotmc villager

Last synced: 10 Jul 2025

https://github.com/stfalcon-studio/stfalconfixturer-android

Utility for developers and QAs what helps minimize time wasting on writing the same data for testing over and over again. Made by Stfalcon

android autofill autofixture fixtures java kotlin qa utility

Last synced: 10 Jun 2025

https://github.com/audiveris/proxymusic

Java mapping library for MusicXML

java marshal music musicxml xml-serialization

Last synced: 09 Jul 2025

https://github.com/aerokube/lightning-java

Lightweight and lightning fast Java WebDriver client for test automation professionals

client java lightning lightweight professional selenium webdriver

Last synced: 12 Apr 2025

https://github.com/extrawest/charge-point-simulator-via-ocpp-2.0.1

This is a emulator for huge numbers of charge points, that connect to central system through web socket and implement OCPP 2.0.1

charger docker dockerfile java jetty maven ocpp ocpp201 simulator spring spring-boot websocket

Last synced: 08 Sep 2025

https://github.com/kangarko/corearena

A high-end monster arena Minecraft plugin with procedural damage and RPG system. Maps included!

arena bukkit bukkit-plugin game java minecraft minecraft-plugin minigame plugin rpg spigot spigot-plugin

Last synced: 21 Mar 2025

https://github.com/reyadussalahin/problem-solving

A platform where you can learn about algorithms and data structures. A heaven for competitive programmers. Learn here: https://reyadussalahin.github.io/problem-solving/

algorithms codechef codeforces codejam competitive-programming cpp cuet data-structures hackercup hacktoberfest hacktoberfest-accepted icpc java javascript leetcode problem-solving python racket spoj uva

Last synced: 17 Jan 2026

https://github.com/soumyadip007/school-management-system-gui-software-using-java-swing-awt-jdbc-jtatoo-mysql

A Portable GUI Software built on Java Swing ,AWT, JavaFX and many other components.

awt java javafx jdbc jtattoo mysql swing

Last synced: 26 Oct 2025

https://github.com/fraktalio/courier-demo

Axon demo - `Courier Management` Information System - A part of the systems landscape: https://github.com/fraktalio/courier-demo, https://github.com/fraktalio/restaurant-demo, https://github.com/fraktalio/order-demo

axon-framework cqrs ddd demo-app event-sourcing eventmodeling java microservices spring-boot

Last synced: 17 Jan 2026

https://github.com/caolib/book_management_system

Java课程设计,图书借阅管理系统,springboot+vue3前后端分离开发

java mybatis-plus mysql redis springboot

Last synced: 10 Oct 2025

https://github.com/e-candeloro/sauruss-autonomous-drone-surveillance

An autonomous drone and sensor based surveillance system that use a Tello Drone, an Arduino, a Raspberry Pi and an Android smartphone.

3d android-app arduino aruco-markers autonomous-drone autonomous-vehicles c-language computer-vision drone finite-state-machine intrusion-detection iot java opencv python surveillance telegram tellodrone yolo

Last synced: 13 Oct 2025

https://github.com/graphaware/neo4j-expire

GraphAware Module for Expiring (Deleting) Nodes and Relationships

java neo4j neo4j-graphaware-framework

Last synced: 06 Oct 2025

https://github.com/prestongarno/kotlinq

Kotlin DSL for GraphQL

graphql graphql-schema java kotlin

Last synced: 11 Jul 2025

https://github.com/pawandubey/griffin

speedy and simplistic static site generator.

griffin java static-site-generator

Last synced: 07 Mar 2026

https://github.com/apache/maven-parent

Apache Maven Project Parent POMs

build-management java maven

Last synced: 05 Apr 2025

https://github.com/davidgutierrezrubio/jmathanim

A Java library to make mathematical animations

animation java mathematics

Last synced: 11 Jan 2026

https://github.com/mondain/jets3t

JetS3t (pronounced "jet-set") is a free, open-source Java toolkit and application suite for Amazon Simple Storage Service (Amazon S3), Amazon CloudFront content delivery network, and Google Storage for Developers.

aws cloud cloudfront google-storage java s3

Last synced: 12 May 2025

https://github.com/italia/spid-spring

SPID extension for Java Spring

java spid spring

Last synced: 08 Apr 2026

https://github.com/horoc/treetops

Fast LightGBM tree model inference Java library which is based on ASM dynamic code generation framework.

asm bytecode inference java lightgbm machine-learning

Last synced: 14 Apr 2025

https://github.com/d-coder111/dsamplify

Hacktoberfest2024 accepted-Our aim is to build a website that comprehensively covers algorithms in C++, Java, Python, and other programming languages, along with acknowledging the contributors to this repository.

algorithms beginner-friendly cpp css data-structures first-timers hacktoberfest hacktoberfest-accepted hacktoberfest2024 hacktoberfest2024-accepted html java javascript python web-development website website-design

Last synced: 06 Apr 2025

https://github.com/opensearch-project/asynchronous-search

:arrow_forward: Run queries in the background and retrieve partial results along the way

async asynchronous java long longrunning partial poll search timeouts

Last synced: 09 Apr 2025

https://github.com/carlanton/mpd-tools

DASH MPD tools for Java

dash java mpd

Last synced: 14 Jan 2026

https://github.com/dxxxxy/mcp1.8.9op

A fixed mcp workspace configured for 1.8.9 integrated with optifine and setup with a single setup.bat.

1-8-9 client fixed idea intellij java mcp minecraft optifine setup tutorial version workspace

Last synced: 21 Apr 2025

https://github.com/apache/maven-shared-utils

Apache Maven Shared Utils

build-management java maven maven-shared

Last synced: 15 May 2025

https://github.com/vanniktech/espresso-utils

Provides helper methods for asserting a few things that Espresso does not support out of the box.

android espresso java kotlin testing

Last synced: 15 Apr 2025

https://github.com/codelibs/fess-crawler

Web/FileSystem Crawler Library

crawler java

Last synced: 07 Apr 2025

https://github.com/windup/windup-rulesets

Windup rules and rulesets contributed by community.

java migrations rules ruleset xml

Last synced: 11 Apr 2025

https://github.com/marwa-eltayeb/fast-image-resizer

Javafx application to resize images and add them into folders automatically.

android-resources image-preview image-processing image-resizer java javafx-application resize-images resize-tool

Last synced: 10 Apr 2025

https://github.com/stageguard/osumapsuggester

A OneBot bot that can provide osu!std players some appropriate beatmap (WIP)

bot java kotlin osu osugame

Last synced: 17 Jul 2025

https://github.com/nasageek/utexas-utilities

Android app to interact with various UT Austin web services

android java university-of-texas

Last synced: 06 Mar 2026

https://github.com/meysamhadeli/booking-microservices-java-spring-boot

A practical distributed system, built with Java Spring Boot, Vertical Slice Architecture, Event Driven Architecture, CQRS, DDD, gRpc, MongoDB and RabbitMq.

clean-architecture cqrs ddd event-driven-architecture grpc java keycloak messaging microservice microservices mongodb oauth2 opentelemetry rabbitmq spring-boot spring-cloud-gateway spring-data-jpa spring-mvc spring-security vertical-slice-architecture

Last synced: 22 Apr 2025

https://github.com/felipetomazec/lexical-analyzer

A basic Lexical-Analyzer written in Java.

compilers java javafx javafx-application lexical-analysis

Last synced: 10 Apr 2025

https://github.com/hms-core/hms-audio-editor-demo

HUAWEI Audio Kit provides a wide range of audio editing capabilities, including auido import/export/editing/extracting and format conversion. This sample code describes how to integrate the Audio Editor Kit SDK.

audio audio-editor hms huawei java

Last synced: 01 Aug 2025

https://github.com/twin/spring-security-oauth2-client-example

Minimal configuration required for a Spring Boot project using Spring Security with OAuth2 client

java oauth2-client spring spring-boot spring-framework spring-security spring-security-oauth2

Last synced: 04 Oct 2025

https://github.com/imagej/napari-imagej

Use ImageJ functionality from napari

fiji imagej java napari python

Last synced: 01 Aug 2025

https://github.com/tambapps/p2p-file-sharing

Application using Peer to peer communication to transfer files under a same local network

android java javafx p2p peer-to-peer tcp udp

Last synced: 24 Jul 2025

https://github.com/edmcouncil/onto-viewer

OntoViewer is an open-source project that is hosted by EDM Council. The project started in May 2019. OntoViewer is a JAVA application that is specifically designed to access both the ontology structure and its content in the easiest possible way. OntoViewer servers both as a web application and REST API.

auto-viewer fibo-viewer java java-application onto-viewer ontology-documentation ontology-search

Last synced: 25 Jan 2026

https://github.com/pillowmc/pillow

Run Fabric or Quilt Loader on ModLauncher. No releationship between Python library PILlow.

fabricmc java java-17 minecraft mod neoforge quiltmc

Last synced: 12 Apr 2025

https://github.com/tokenmill/timewords

Multilingual library to easily parse date strings to java.util.Date objects.

clojure date-parser date-time java natural-language-processing parsing

Last synced: 22 Apr 2025

https://github.com/sbt/sbt-java-formatter

An sbt plugin for formating Java code

code-formatter java sbt

Last synced: 21 Apr 2025

https://github.com/e-candeloro/SAURUSS-Autonomous-Drone-Surveillance

An autonomous drone and sensor based surveillance system that use a Tello Drone, an Arduino, a Raspberry Pi and an Android smartphone.

3d android-app arduino aruco-markers autonomous-drone autonomous-vehicles c-language computer-vision drone finite-state-machine intrusion-detection iot java opencv python surveillance telegram tellodrone yolo

Last synced: 21 Apr 2025

https://github.com/appwrite/playground-for-kotlin

Simple examples that help you get started with Appwrite + Kotlin (=❤️)

android appwrite hacktoberfest java kotlin

Last synced: 02 Mar 2026

https://github.com/opensolon/solonbot

Java impl version of "Claude Code". The open source coding agent.

claude-code cli cli-app java solon

Last synced: 09 Mar 2026

https://github.com/horaciomuller/event-api

Developed with Java 17, Spring, Docker, Flyway, JUnit, Mockito, and deployed on AWS EC2 with GitHub Actions automation.

aws docker githubactions java postgres spring

Last synced: 14 Apr 2025

https://github.com/kevin-lee/j8plus

Library containing useful tools for Java 8

functional-programming java java8 lambda-expressions recursion stream

Last synced: 22 Mar 2025

https://github.com/hubspot/niosmtpclient

Smtp Client based on Netty

email java java8 netty nio smtp

Last synced: 10 Aug 2025

https://github.com/bahmanm/persianutils

A collection of utilities for Scala/Java developers who are targeting Persian (Farsi) speaking users.

date farsi java localization scala

Last synced: 01 Aug 2025

https://github.com/signum-network/signumj

SignumJ - Java Development Framework

bitcoin blockchain burstcoin ethereum java jdk signum transaction

Last synced: 08 Aug 2025

https://github.com/iuv/square

造一个方形的轮子

framework ioc java

Last synced: 17 Sep 2025

https://github.com/igr/hey-you

Face detection, face recognition and gender detection with OpenCV

face-detection face-recognition gender-recognition java opencv

Last synced: 22 Mar 2025

https://github.com/xushiyan/kafka-connect-datagen

A Kafka Connect source connector that generates data for tests

data-generator etl etl-pipeline integration-test java kafka kafka-connect performance-test

Last synced: 22 Mar 2025

https://github.com/piyushwani004/hospitalmanagementsysyem

Hospital management system project in java using JSP, servlet, Mysql, and Netbeans. Its using java as core technology and Mysql as backend to manage the data records.

bootstrap4 css3 java jsp-servlet

Last synced: 12 May 2025

https://github.com/jayboxyz/algorithm-notes

:memo: 数据结构与算法学习、LeetCode 刷题...

algorithm datastructure java leecode

Last synced: 13 Jul 2025

https://github.com/yegor256/wring

Smart Inbox for GitHub Notifications

github inbox java notifications xml xslt

Last synced: 27 Mar 2025

https://github.com/mastercloudapps-projects/asyncreactiveprogramming

This repository is intended to be a compilation of presentations, examples, links, and other resources on asynchronous and reactive programming in Java

asynchronous-programming java project-reactor r2dbc reactive-programming reactive-streams rsocket webflux

Last synced: 19 Jun 2025

https://github.com/panga/fn-native-java

Fn Project Native Java Function using GraalVM

fnproject graalvm java

Last synced: 10 Apr 2025

https://github.com/rameshmf/java-collections-framework-course

Java Collections Framework course at https://youtu.be/GdAon80-0KA

collections java java8

Last synced: 03 May 2025