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/gaul/java-collection-overhead

Demonstrate overheads for various Java Collection implementations.

collection java

Last synced: 15 Apr 2025

https://github.com/woowacourse-teams/2025-todok-todok

📖 읽고 ✏️ 기록하고 💬 토론하자, 독서 기반 토론 서비스 “토독토독”

android-app java kotlin spring-boot

Last synced: 30 Aug 2025

https://github.com/nekos-life/neko-bot-jda

The official Nekos.life Discord bot

discord discord-bot java jda jda-bot nekobot nekos-life

Last synced: 06 Aug 2025

https://github.com/cyclopsmc/colossalchests

For when regular chests are too small.

forge hacktoberfest java minecraft

Last synced: 01 May 2025

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/helins/linux-gpio.java

Use the standard Linux GPIO api from Java

gpio iot java jna linux native standard

Last synced: 19 Apr 2025

https://github.com/waikato-datamining/adams-base

Base modules for ADAMS, the Advanced Data Mining and Machine Learning System.

java machine-learning maven workflow-engine

Last synced: 30 Apr 2025

https://github.com/naxmefy/node-jdbc

small wrapper to work with jdbc in node

java jdbc nodejs typescript

Last synced: 01 Mar 2026

https://github.com/quackster/roseau

Habbo Hotel emulator for the 2001 "v1" client revision.

2001 emulation emulator habbo java private-server server shockwave

Last synced: 01 Jul 2025

https://github.com/dabit3/api-gateway-lambda-in-various-runtimes

Examples of serverless Lambda functions integrated with API Gateway and CORS enabled

aws cors dotnet golang java serverless

Last synced: 17 Nov 2025

https://github.com/shirasawasama/javasharedmemory

Shared memory between Java and C++/Rust/Go processes.

cpp ffi interprocess interprocess-communication ipc java java-19 pure-java shared-memory

Last synced: 08 Jul 2025

https://github.com/wojciechzankowski/iextrading4j-book

IEX Trading open source incremental Order Book implementation

deep feed hist iex iextrading java market-data order orderbook tops

Last synced: 10 Apr 2025

https://github.com/apache/uima-ruta

Apache UIMA Ruta

apache java ruta text-analysis uima

Last synced: 19 Oct 2025

https://github.com/pkini2002/jwt-authentication-springboot

JWT Authentication API using Spring Boot 3.1.4 (Using Spring Security + Lombok + Spring Web dependencies)

intellij java jsonwebtoken jwt-authentication lombok postman-testing spring-boot spring-security-jwt spring-web

Last synced: 07 Sep 2025

https://github.com/jakejmattson/facialrecognition

Facial detection and recognition.

facial-detection facial-recognition java opencv

Last synced: 11 Oct 2025

https://github.com/nishkarshraj/maven-using-cmd

Create a project in Java using Apache Maven Build tool via Command Line and use GitHub Actions to build it on remote Docker Engine.

apache build-automation cmd command-line command-line-tool css dependabot devops html java maven maven-repository

Last synced: 13 Oct 2025

https://github.com/fgksgf/minesweeper

:bomb: 扫雷游戏

game java minesweeper swing-gui

Last synced: 11 Oct 2025

https://github.com/marcoscgdev/infoview

A simple and easy to use information view for Android.

android code info infoview java view views xml

Last synced: 12 Oct 2025

https://github.com/jlleitschuh/kotlin-guiced

Convenience Kotlin API over the Google Guice DI Library

dependency-injection google google-guice guice java jvm kotlin

Last synced: 07 Jul 2025

https://github.com/masecla22/Modrinth4J

A fully-compliant Java wrapper for the Modrinth API

java modrinth wrapper

Last synced: 02 Apr 2025

https://github.com/emmanueltouzery/code-compass.nvim

Neovim plugin: set of functions to navigate code without LSP.

java neovim neovim-plugin nvim nvim-plugin

Last synced: 06 Oct 2025

https://github.com/yupiik/bundlebee

A light Java Kubernetes package manager.

cloud java kubernetes maven

Last synced: 13 Feb 2026

https://github.com/impetus/fabric-jdbc-connector

Fabric JDBC connector implements a pure java, type 4 JDBC driver that executes SQL queries on Hyperledger fabric Blockchain.

blockchain fabric go hyperledger java jdbc jdbc-driver sql

Last synced: 17 Mar 2026

https://github.com/haxe4e/haxe-studio

Eclipse based IDE for the Haxe programming language

eclipse editor haxe ide java

Last synced: 01 Feb 2026

https://github.com/naotsugu/piecetable

Java implementation of PieceTable data structure.

algorithms java

Last synced: 06 Feb 2026

https://github.com/jgperrin/net.jgp.books.spark.ch09

Spark in Action, 2e - chapter 9 - Advanced ingestion: finding data sources and building your own

apache-spark ingestion java java8 manning spark sparkwithjava

Last synced: 04 Mar 2026

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/devops-utils/excel-to-pdf

An easy way to convert Excel 2003 and Excel 2007 to PDF by Java code based on Apache POI and itext7

excel excel-to-pdf excel2pdf itext itext7 java pdf poi

Last synced: 14 Jan 2026

https://github.com/vinayalodha/elvis

Java Compiler plugin for Null safety

java null-safety

Last synced: 14 Jan 2026

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/rudderlabs/rudder-sdk-android

Android SDK for RudderStack - the Customer Data Platform for Developers.

analytics analytics-platform android android-library android-sdk java kotlin open-source rudder sdk

Last synced: 25 Apr 2025

https://github.com/kumar-shivam-ranjan/retail-store-management-system

This Repository contains Java Spring MVC based relational Database Management System Project

java jdbc-connector mysql-database spring-mvc spring-security

Last synced: 13 Jun 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/ikuzweelisa/grades_calculator

A Grades Calculator App developed in java

desktop-app grades-app java jformdesigner standalone swing-gui

Last synced: 15 Aug 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/arteam/embedded-http-server

A light and minimalistic HTTP server for Java with zero dependencies and quick startup time

http java unit-testing

Last synced: 25 Jun 2025

https://github.com/casdoor/casdoor-spring-boot-starter

Spring Boot 2.x & 3.x Starter for Casdoor, see example at: https://github.com/casdoor/casdoor-spring-boot-example

casdoor java oauth oidc saml sdk spring-boot spring-boot-2 spring-boot-3 springboot sso

Last synced: 05 Apr 2025

https://github.com/odaridavid/diary

Diary App ,demo for Room ORM ,ALC 5 Android Session

android java room-database room-persistence-library

Last synced: 13 Sep 2025

https://github.com/cucumber/html-formatter

HTML formatter for reporting Cucumber results

bdd cucumber java javascript polyglot-release ruby tidelift

Last synced: 12 Sep 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/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://github.com/moaxcp/x11

An x11 protocol implementation and client for the jvm

desktop java x11 xlib

Last synced: 13 Apr 2025

https://github.com/pinterest/l10nmessages

L10nMessages is a library that makes internationalization (i18n) and localization (l10n) of Java applications easy and safe.

annotation-processor bazel fluent-api format gradle i18n icu4j internationalization java l10n localization maven

Last synced: 07 Jul 2025

https://github.com/martinpaljak/EstEID

Estonian eID tools and libraries in Java

apdu apdu4j esteid java smartcard

Last synced: 12 Apr 2025

https://github.com/glowstonemc/bukkit2sponge

An implementation of SpongeAPI for Bukkit servers (Glowstone, Spigot)

bukkit-plugin glowstone java minecraft sponge spongeapi

Last synced: 30 Apr 2025

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/xdev-software/micro-migration

Tiny library to migrate EclipseStore datastores. Applies migration scripts on the datastores to keep them up to date.

eclipse-store eclipsestore java maven support-library xdev

Last synced: 30 Apr 2025

https://github.com/yegor256/cam

Classes and Metriсs (CaM): a dataset of Java classes from public open-source GitHub repositories

cyclomatic-complexity dataset java metrics metrics-gathering

Last synced: 27 Mar 2025

https://github.com/akarnokd/async-enumerable

Prototype Java 9 library based on the asynchronous enumerable concept (where moveNext() returns a task to compose over).

asynchronous enumerable java

Last synced: 11 Apr 2025

https://github.com/sergiorussia/jpoint-2024-pg-for-java-developers

PG для Java-разработчиков, доп материалы

hikaricp java pgjdbc spring-boot spring-jdbc

Last synced: 13 Apr 2025

https://github.com/croz-ltd/nrich-demo-backend

Spring Boot application to showcase features of nrich libraries.

croz java jpa nrich spring-boot

Last synced: 12 Jul 2025

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

Official Java SDK for Filestack - API and content management system that makes it easy to add powerful file uploading and transformation capabilities to any web or mobile application.

file-management file-upload image-processing java sdk video-processing

Last synced: 10 Jul 2025

https://github.com/orpolyzos/spring-web-initializr

Spring Web Initializr is a library that helps you easily create Web Apps with Spring Boot.

java library mvc mvc-pattern plugin rest rest-api spring spring-boot webapp

Last synced: 05 May 2025

https://github.com/swathimystery/mesos-pinspider

A framework called "pinspider" on Apache mesos, to get basic user information from a pinterest page of a user.

distributed-computing java mesos mesos-pinspider mesosphere

Last synced: 11 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/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/yangyouwang/wrapper

包装枚举插件(例如:0或1 包装成男或女)

java

Last synced: 10 Apr 2025

https://github.com/beykery/willwallet

以太坊钱包

ethereum java mnemonic wallet

Last synced: 12 Jan 2026

https://github.com/lalanachami/java-chat-application-socket-java-swing-gui-

👩‍❤️‍💋‍👨🧑🏻‍💻Socket based chat application with a chat client and a chat server. With swing GUI and message encryption

chat-application decryption encryption hash java sha-1 socket swing-gui

Last synced: 14 Apr 2025

https://github.com/michael-simons/neo4j-from-the-jvm-ecosystem

Examples of how to connect to Neo4j on the JVM, reading and writing data.

helidon java jvm micronaut neo4j neo4j-driver quarkus spring spring-data-neo4j

Last synced: 23 Jul 2025

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

📦 The best JNI wrapper ever made

java jni swift wrapper

Last synced: 13 May 2026

https://github.com/artipie/npm-adapter

Turn your files to an NPM repository

java javascript npm private-npm-repository

Last synced: 13 May 2025

https://github.com/justinsdk/javase14tutorial

Java SE 14 技術手冊相關資源

java

Last synced: 08 Apr 2025

https://github.com/open-hand/choerodon-oauth

This service is the authorized authentication center of the choerodon microservices framework and is mainly responsible for user privilege and authorization.

c7nf choerodon java oauth2 spring spring-boot spring-cloud spring-oauth2

Last synced: 10 Jul 2025

https://github.com/martinwitt/laughing-train

A code refactoring tool for java created with jgit and spoon for small diffs.

java junit junit4 junit5 qodana refactoring-tools spoon

Last synced: 08 Apr 2025

https://github.com/stevespringett/owasp-risk-rating-calculator

A Java library for programmatically calculating OWASP Risk Rating scores

java library owasp risk-assessment risk-scores threat-modeling

Last synced: 01 Jul 2025

https://github.com/tananaev/steps-navigation

Navigation app without GPS using steps sensor

android java

Last synced: 06 May 2025

https://github.com/open-hand/gitlab-service

Gitlab Service is responsible for establishing communication with GitLab, handling GitLab related logic and forwarding it to other services.

choerodon gitlab java spring spring-boot spring-cloud

Last synced: 10 Jul 2025

https://github.com/brenns10/yams

YAMS: Awesome MIPS Server

assembly brainfuck http-server java mars mips

Last synced: 16 Feb 2026

https://github.com/a-r-d/java-1-class-demos

Java 160 class demos for Cincinnati State Java 1 class.

demo java youtube-video

Last synced: 28 Oct 2025

https://github.com/thallyta-castro-cv/algafood-api

Este projeto consiste em uma aplicação Backend com Spring Boot para criar um sistema de delivery de comida completo com todos os recursos que o Spring disponibiliza. O intuito deste projeto é servir de repositório base para consultas futuras de implementação de recursos do framework.

java junit5 mockito-junit-test mysql spring-boot

Last synced: 08 Jul 2025

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/scaledrone/scaledrone-java

Scaledrone Java & Android WebSocket client

android java real-time scaledrone websocket websocket-client

Last synced: 12 Apr 2025

https://github.com/renatoaguimaraes/spring-reactive-kafka-sse

Stream with Spring Boot Reactive + Kafka + Server Sent Event + Cassandra.

cassandra html5 java javascript kafka reactive-programming reactive-spring-data spring-boot spring-reactive sse

Last synced: 31 Jul 2025

https://github.com/tanin47/javaparser.rs

[work-in-progress] Java parser written in Rust

java parser

Last synced: 15 Sep 2025

https://github.com/kakarottocui/unichongdianzhuangapplet

基于java SpringBoot和Vue uniapp的汽车充电桩微信小程序

element-ui java mysql springboot uniapp vue

Last synced: 28 Jul 2025

https://github.com/sebischair/SimpleNLG-DE

German version of SimpleNLG 4

java natural-language nlg simplenlg

Last synced: 14 May 2025

https://github.com/naotsugu/jpostal

Japan postal code dictionary(so‐called ken_all.csv) utility.

java

Last synced: 29 Jan 2026

https://github.com/lambdaurora/affectionate

A mod about player interactions, made for Modfest: Singularity.

java minecraft minecraft-mod modfest modfest-singularity quiltmc

Last synced: 29 Aug 2025

https://github.com/aman9026/codezen

Contains the solutions of all the problems I attempted in practice or competitions on Codezen

codezen competitions competitive-programming cpp java practice practice-programming

Last synced: 15 Aug 2025