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/micrusa/amaztimer

Interval/Workout timer app with heart rate, kcal monitoring, tcx exports, reps detection and previous workouts viewer for Amazfit devices running android [Discontinued]

amazfit amazfit-devices android huami interval-timer java reps-detection tcx-exports widget workout-tracking

Last synced: 28 Mar 2025

https://github.com/lucko/shadow

An annotation based API for Java reflection.

annotation java reflection

Last synced: 17 Sep 2025

https://github.com/leogejior0/crackingthecodinginterview-ws

Repository to hold code written to help study for coding interviews using the textbook "Cracking the Coding Interview." Includes data structure implementations and solutions to problems in the textbook.

java jdk jdk11 jdk17 jdk21 jdk23 jdk8 jvm

Last synced: 27 Jul 2025

https://github.com/aress31/google-authenticator

Burp Suite plugin that dynamically generates Google 2FA codes for use in session handling rules (approved by PortSwigger for inclusion in their official BApp Store).

burp-plugin burpsuite google java two-factor-authentication

Last synced: 22 Mar 2025

https://github.com/dadrus/jpa-unit

JUnit extension to test javax.persistence entities

cdi concordion cucumber database java jpa jpa-test jpa-unit junit junit5 mongodb neo4j persistence test testing

Last synced: 12 Feb 2026

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

This open source project allows you to easily implement Zeebe Worker with Micronaut: simply add a dependency in your Micronaut project

bpm camunda camunda-cloud cloud graalvm hacktoberfest java micronaut micronaut-framework microservice workflow zeebe zeebe-worker

Last synced: 02 Apr 2026

https://github.com/depromeet/antoon-api

📈 개미는 툰툰 :: 웹툰의 새로운 덕질 문화

java jpa mysql rest spring-mvc

Last synced: 19 Apr 2025

https://github.com/rolandosborne/IndiView

Take back control of your data with IndiView, an app for self-hosted digital identities on CoreDB nodes. Designed for Android and iOS, supports messaging and personalized content feeds.

android android-app decentralized federated ios ios-app java java-spring messaging privacy react-native reactjs social-media

Last synced: 16 May 2025

https://github.com/uhafner/codingstyle

Java coding style and template project used at Munich university of applied sciences

coding-standards coding-style java java-style

Last synced: 07 Feb 2026

https://github.com/mrsarm/jshell-plugin

Gradle plugin to explore your code and dependencies with in jshell

gradle gradle-plugin java java9 jshell

Last synced: 11 Sep 2025

https://github.com/joafalves/pixel-community

High performance and modular Java/Kotlin 2D Game Framework.

framework game-2d game-development game-engine game-engine-2d game-framework gamedev java jvm kotlin lwjgl opengl

Last synced: 15 Jul 2025

https://github.com/igrishaev/virtuoso

A number of trivial wrappers on top of virtual threads

clojure java threads virtual

Last synced: 30 Oct 2025

https://github.com/neuw84/rake-java

A Java implementation of the Rapid Automatic Keyword Extraction Framework ( RAKE )

freeling illinois-pos-tagger java keyword-extraction nlp pos-tagger

Last synced: 02 Apr 2025

https://github.com/fengtan/sophie

A Solr browser and administration tool

administration java solr swt

Last synced: 18 Jan 2026

https://github.com/taymindis/atomic_threadpool

it's a smallest library that provides a lock-free thread pool sharing on multithreading, it design for scalability

asynchronous atomic-design c cross-platform java jni lockfree multithreading threadpool

Last synced: 10 Apr 2025

https://github.com/bertilmuth/moonwlker

Jackson JSON without annotation.

deserialization jackson jackson-json java json serialization

Last synced: 27 Aug 2025

https://github.com/cocainecong/gesture-recognizion

YOLO+ResNet的手势识别,YOLO进行目标识别,ResNet进行特征提取

ai java python resnet yolo

Last synced: 15 Apr 2025

https://github.com/yusuf-daglioglu/swagger_plugin_example

Example of a Swagger plugin which prints the information from custom Java annotation to Swagger HTML UI.

api documentation http java open-api openapi spring swagger swagger-plugin swagger-ui

Last synced: 15 Apr 2025

https://github.com/ozlerhakan/java9-module-examples

a list of Java 9 module samples to dive into the modular world

java java9 java9-jigsaw jigsaw modularity module serviceloader

Last synced: 04 Jan 2026

https://github.com/yj8023xx/xiwenlejian

一个基于深度学习的书籍推荐系统,可以根据用户的行为进行个性化的推荐

deep-learning java python recommender-system spark springcloud vue

Last synced: 23 Aug 2025

https://github.com/xuwei-k/free-monad-java

Free Monad in Java

java monad

Last synced: 15 Apr 2025

https://github.com/ivangfr/spring-cloud-stream-event-sourcing-testcontainers

Goal: create a Spring Boot application that handles users using Event Sourcing. So, whenever a user is created, updated, or deleted, an event informing this change is sent to Kafka. Also, we will implement another application that listens to those events and saves them in Cassandra. Finally, we will use Testcontainers for end-to-end testing.

avro cassandra docker java json kafka mysql schema-registry spring-boot spring-cloud-stream spring-data-cassandra spring-data-jpa spring-web-mvc springdoc-openapi testcontainers

Last synced: 07 Mar 2026

https://github.com/grapebaba/sui4j

Sui4j is a robust, reactive, type safe Java library for working with Smart Contracts on the @MystenLabs/sui network.

bcs blockchain java jvm move sdk sui

Last synced: 10 Jul 2025

https://github.com/songwo-153/collaborativefilteringnewsrecommendsystem

基于协同过滤算法的个性化新闻推荐系统的设计与实现(采用Java语言的SpringBoot和SSM两种框架分别实现基于用户、物品的协同过滤推荐算法)

collaborative-filtering java javascript mybatis mysql recommendation-algorithm spring springboot springmvc ssm

Last synced: 19 Jun 2025

https://github.com/nipafx/java-after-eight

Start with Java 11, be amazed by Java 12-17 and beyond

java

Last synced: 05 May 2025

https://github.com/rladstaetter/javacv-webcam

Display a videostream from your webcam with JavaFX and JavaCV

java java11 javacv javafx maven opencv webcam webcamera

Last synced: 10 Apr 2025

https://github.com/minhaskamal/skindetector

Detects Human Skin From Image (color-region-segmentation-photo-detection-extraction-detect)

egami image-processing image-segmentation java region region-detection segmentation skin template-matching

Last synced: 11 Apr 2025

https://github.com/onurozuduru/java-shooter-game-project

A simple Java game project for programming class.

2d game java java-game java-shooter-game shooter-game

Last synced: 11 May 2025

https://github.com/jupf/staticlog

StaticLog - super lightweight static logging for Kotlin, Java and Android

android java kotlin logger

Last synced: 12 May 2025

https://github.com/kaitoy/sneo

SNMP Network Simulator

java snmp-network-simulator

Last synced: 13 Apr 2025

https://github.com/liyupi/ai-code-helper

2025 年 AI 编程助手实战项目(作者:程序员鱼皮),基于 Spring Boot 3.5 + Java 21 + LangChain4j + AI 构建智能编程学习与求职辅导机器人,覆盖 AI 大模型接入、LangChain4j 核心特性、流式对话、Prompt 工程、RAG 检索增强、向量数据库、Tool Calling 工具调用、MCP 模型上下文协议、Web 爬虫、安全防护、Vue.js 前端开发、SSE 服务端推送等企业级 AI 应用开发技术。帮助开发者掌握 AI 时代必备技能,熟悉 LangChain 框架,提升编程学习效率和求职竞争力,成为企业需要的 AI 全栈开发人才。

ai ai-model backend frontend java langchain4j mcp rag spring-ai springboot springmvc tool-calling vector-database vue

Last synced: 16 Jul 2025

https://github.com/jonatino/csgo-offset-scanner

Java Based Cross-Platform CSGO Offset and Netvar Scanner

abendigo charlatano cheat counter csgo global java offensive offsets strike xena

Last synced: 22 May 2026

https://github.com/vrgsoftua/timeline-view

Open source android library

android java libraries

Last synced: 05 May 2025

https://github.com/archimedes-projects/archimedes-jvm

Archimedes's implementation for the Java Virtual Machine (JVM)

architecture ddd java jvm kotlin solid

Last synced: 04 Oct 2025

https://github.com/panga/rinhabackend-vertx

Rinha de Backend 2023 Q3 - Java + Vert.x

java rinha-de-backend rinha-de-backend-2023-q3 vertx

Last synced: 08 Mar 2026

https://github.com/dominokit/domino-mvp

domino-mvp

gwt java

Last synced: 16 Jun 2026

https://github.com/ksilisk/telegram-bot-spring

Telegram Bot Spring Boot Starter

java spring-boot spring-boot-starter telegrambot

Last synced: 03 May 2026

https://github.com/yuyuzha0/word2vec

a word2vec impl of Chinese language, based on deeplearning4j and ansj

chinese java nlp word2vec word2vec-zh

Last synced: 10 Oct 2025

https://github.com/tink-crypto/tink-tinkey

Utility that allows generating and manipulating Tink keysets

crypto cryptography java key-management security

Last synced: 27 Jan 2026

https://github.com/jonatino/jogl2d

Zero-overhead 2D rendering library for JOGL using Kotlin

2d 3d development game gradle graphics java javafx jogl kotlin maven opengl swing zero-overhead

Last synced: 26 Oct 2025

https://github.com/tbdawg/VerticalMarqueeTextView

This is an Android class for creating a TextView that will Marquee or Auto Scroll Vertically.

android autoscrolling java textview vertical-autoscroll vertical-autoscrolling-textview vertical-marquee vertical-marquee-textview

Last synced: 12 Jul 2025

https://github.com/vbauer/avconv4java

Java interface to avconv tool

avconv ffmpeg java libav video video-processing

Last synced: 13 Oct 2025

https://github.com/myopenresources/cc-project-vue

一个基于vue3.0+antd+less+spring boot +mybatis+mysql+maven基础权限管理平台

admin antd java mybatis mysql spring springboot vue vue3

Last synced: 07 Apr 2025

https://github.com/apache/pdfbox-jbig2

Mirror of Apache PDFBox

content java library pdfbox

Last synced: 16 Jun 2025

https://github.com/kok202/dluid

Deep learning user interface designer

ai deep-learning deeplearning4j dl4j gui java javafx javafx-application

Last synced: 01 Jul 2025

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

Apache Maven Doxia base

apache-maven build-management doxia java maven

Last synced: 15 May 2025

https://github.com/excalibase/excalibase-graphql

Excalibase GraphQL instantly turns your database into a GraphQL API. Built with Spring Boot, it supports schema discovery, subscriptions, and type handling — no manual resolvers needed.

api api-automation api-generator code-generation database-to-graphql developer-tools graphql graphql-server java postgres postgresql postgresql-database spring spring-boot springboot sql

Last synced: 27 Feb 2026

https://github.com/tigersoldier/javacomp

A Java completion server

java language-server-protocol

Last synced: 24 Apr 2025

https://github.com/apache/pdfbox-docs

Mirror of Apache PDFBox Docs

content java library pdfbox

Last synced: 09 Apr 2025

https://github.com/supwisdom/spreadsheet-mapper

Tools to mapping between spreadsheet and POJO

excel export import java spreadsheet validation

Last synced: 14 Jan 2026

https://github.com/harmonysoft-tech/traute

Enhances java sources compilation in a way to insert null-checks into generated *.class files

instrumentation java java-8 javac javacompiler notnull

Last synced: 22 Apr 2025

https://github.com/wille/oslib

Java library to easily detect running Operating System, BSD Flavor, Linux Distribution, Desktop Environment and Architecture

architecture bsd bsd-flavor desktop-environment java java-library library linux linux-distribution operating-system os windows

Last synced: 30 Oct 2025

https://github.com/moraisigor/fontdroid

FontDroid is a small library that gives the ability to use custom fonts in an Android application

android custom-fonts java

Last synced: 04 Sep 2025

https://github.com/ahmedfgad/opencvandroid

Using OpenCV in Android Devices

android canny computer-vision java opencv

Last synced: 23 Apr 2025

https://github.com/bzsome/gobangclient

五子棋游戏,联机对战,人机对战,AI智能下棋,聊天室。纯jdk代码,文档齐全,下载即可运行。

java socket swing

Last synced: 06 Jul 2025

https://github.com/tutorialsandroid/messageview

MessageView helps you to create chat message view or a social media message view quickly like a typical chatting application or social post view Its a container view, so you can add any type of message or social post such as TextView or any customize TextView, ImageView, etc.

android-development android-library chat-ui java javascript view

Last synced: 05 Sep 2025

https://github.com/dansoftowner/markdowneditorcontrolfx

Markdown editor control for JavaFX

desktop gui java javafx markdown

Last synced: 08 May 2025

https://github.com/sourcegrade/jagr

Java AutoGrader, Implemented in Kotlin

grading java kotlin

Last synced: 14 Jan 2026

https://github.com/rcardin/swe

Examples and exercises used during Software Engineering course

design-patterns java software-engineering teaching-materials

Last synced: 30 Apr 2025

https://github.com/nishkarshraj/helloworld

A repository made for fun, aiming Hello World code in all programming languages.

c contributions-welcome cpp14 golang hacktoberfest haskell html5 java javascript kotlin linux python r ruby-on-rails rust scala shell shell-script swift4 typescript

Last synced: 09 Apr 2025

https://github.com/danijelaskov/expectiminimax-backgammon

A 2D JavaFX implementation of one of the most popular and old board games. The AI player's moves are calculated using the expectiminimax algorithm.

2d-game artificial-intelligence backgammon bekgemon board-game board-games expectiminimax gradle inteligentni-sistemi java java-fx minimax tavla zero-sum

Last synced: 10 Apr 2025

https://github.com/apache/aries-jax-rs-whiteboard

Apache Aries JAX RS Whiteboard

aries java library

Last synced: 22 Jul 2025

https://github.com/paulcwarren/ginkgo4j

A Java BDD Testing Framework (based on RSpec and Ginkgo)

bdd eclipse ginkgo intellij java junit rspec spring tdd

Last synced: 21 Mar 2025

https://github.com/nguyenphuc22/Design-Patterns

Sách Design Pattern Tiếng Việt - Một cái nhìn tổng quan về design pattern trong lập trình.

behavioral behavioral-patterns creational-patterns design-patterns java structural-patterns

Last synced: 14 Apr 2025

https://github.com/sfuhrm/openssl4j

High performance Java crypto binding to the native OpenSSL library

crypto cryptography fast java java-library jni md5 mmx openssl ripemd160 security sha1 sha256 sha3 sm3 sse whirlpool

Last synced: 05 Apr 2025

https://github.com/arconia-io/arconia-cli

Arconia CLI is a powerful tool designed to streamline and enhance the developer experience when working with Java and Spring Boot applications.

buildpacks cloud-native developer-experience gradle java maven openrewrite spring-boot

Last synced: 14 Jun 2026

https://github.com/hta218/storemanager

Simple desktop application for store management

desktop-application java jdbc sql swing

Last synced: 12 Apr 2025

https://github.com/albertoimpl/spring-cloud-gateway-graphql

Blog post describing how Spring Cloud Gateway can help with some of the problems GraphQL has

graphql java spring spring-cloud-gateway

Last synced: 23 Mar 2025

https://github.com/ruanbekker/aws-terraform-cicd-java-springboot

Terraform: AWS CICD with CodePipeline, CodeBuild and ECS and a Springboot App

aws ecs java spring-boot terraform

Last synced: 29 Jul 2025

https://github.com/microsoft/kiota-java

Java libraries for Kiota-generated API clients.

java kiota openapi rest-api

Last synced: 02 Mar 2026

https://github.com/cocowwy/dingtalk-robot

:robot:拆箱即用的钉钉机器人,已解决20次/秒的消息上限问题,支持复杂业务场景下,根据业务标识使用指定的机器人进行消息通知

java springboot

Last synced: 29 Apr 2025

https://github.com/hardiksinghbehl/redis-caching-java-spring-boot

Backend application leveraging redis cache to reduce network calls and improve latency.

caching java redis-cache spring-boot spring-boot-cache spring-boot-redis testcontainers

Last synced: 09 Apr 2025

https://github.com/aws/amazon-neptune-gremlin-java-sigv4

A Gremlin client for Amazon Neptune that includes AWS Signature Version 4 signing.

amazon-neptune aws-neptune java

Last synced: 16 Mar 2026

https://github.com/trungdq88/chorddroid

Android library to render Guitar Chord.

chords draw guitar java

Last synced: 28 Oct 2025

https://github.com/jrosell/marketing-data-connectors

Command line batch job that run java runtime environment to extract and load marketing data using Facebook Marketing API, Google Analytics API, Mailchimp API, Google Webmasters API, Google Sheets API, Mysql, Postgresql, Clickhouse, etc

batch-job clickhouse command-line-tool connector etl facebook-graph-api google-analytics-api google-sheets-api google-webmaster google-webmaster-tools java jre8 mailchimp-api marketing-tools mysql postgresql talend

Last synced: 19 Jan 2026

https://github.com/areeb-gillani/vertx-boost

This project adds the flavor of SpringBoot's style annotations in vertx to reduce the learning curve. It follows the same annotation style as @RestController, @Service, @Autowired, @RequestParam, @RequestBody, @PostMapping and @GetMapping, whereas controller and service classes should extend AbstractVerticle as per the implementation of Vertx.

autoconfiguration java spring-boot vertx vertx-backend vertx-eventbus

Last synced: 23 Jan 2026

https://github.com/ali-bouali/spring-boot-video-call-app

Video call App using Spring boot and ZegoCloud

api java javascript sdk video-streaming zegocloud

Last synced: 25 Apr 2026

https://github.com/barnhill/barcode-java

Java Barcode Image Generation Library

barcode barcode-generator barcode-images barcodes java java-library

Last synced: 17 Mar 2025