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/grashjs/api

Api of Atlas CMMS - Computerized maintenance management system

alternative cmms java java-8 maven postgresql rest-api spring-boot startup

Last synced: 28 Feb 2025

https://github.com/cjstehno/coffeaelectronica

My technical blog.

blog gradle groovy java

Last synced: 23 Apr 2025

https://github.com/hardiksinghbehl/just-another-testcontainer-integration

Backend application using Testcontainers for Integration Testing AWS S3, Azure Blob Storage, Kafka, MySQL, Egress calls including Chaos testing and Redis.

azurite chaos-testing java kafka-testing localstack mockserver mysql-test redis-test redpanda spring-boot testcontainers toxiproxy

Last synced: 09 Apr 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/lewiscowles1986/julid

Universally Unique Lexicographically Sortable Identifier ported to Java

java reference-implementation ulid

Last synced: 08 Jul 2025

https://github.com/spyopensource/os

Java Operation System, it is an operating system that you can build by yourself.

java jdk os

Last synced: 17 Jan 2026

https://github.com/erzbir/numeron

基于 Mirai 框架的 QQ 机器人项目, 支持多 bot, 可作脚手架快速开发

annotations java kotlin mirai mirai-bot mirai-core qqbot reflect reflection springboot

Last synced: 12 Mar 2026

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/apache/uima-ruta

Apache UIMA Ruta

apache java ruta text-analysis uima

Last synced: 19 Oct 2025

https://github.com/oktadev/okta-java-rest-api-comparison-example

Java REST API with Micronaut, Quarkus, and Spring Boot

java micronaut quarkus rest rest-api spring-boot

Last synced: 06 Oct 2025

https://github.com/mmontes11/tendereteonline

A Java EE web application of an Online Shop developed with Hibernate + Spring + Bootstrap + jQuery

bootstrap hibernate java javaee jquery mysql spring

Last synced: 23 Mar 2025

https://github.com/dansoftowner/restart4j

Library for restarting your java application

desktop java java-library javafx swing

Last synced: 13 May 2025

https://github.com/hamedtaherpour/ht-epub-reader-android

📖 ePub reader and parser library for android

android epub epub-converter epub-reader java

Last synced: 31 Jul 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/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/michel-leonard/ciede2000-color-matching

The 𝐂𝐈𝐄𝐃𝐄𝟐𝟎𝟎𝟎 color difference formula written in 40+ programming languages.

c color computer-vision dart education go image-processing java javascript kotlin ktm620enduro linux python ruby rust swift testing windows

Last synced: 18 Feb 2026

https://github.com/payneteasy/pos-proxy

Connect to a POS terminal via simple API

java miura mpos pax pos spire spm2 verifone vx820

Last synced: 01 Sep 2025

https://github.com/sshtools/forker

Forker is a set of utilities and helpers for launching processes from Java in the most efficient way possible

command fork java non-blocking process processbuilder service system wrapper

Last synced: 13 Apr 2025

https://github.com/erkaman/regl-fire

Fire particle system made with regl

animation demo fire glsl java javascript particles regl webgl

Last synced: 08 Mar 2026

https://github.com/clonewith/opsu

opsu! ~ an open-source osu! client

game java lwjgl2 maven osu rhythm-game slick2d

Last synced: 01 Sep 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/seunakintola/healthmonitor

HealthMonitor android app was built for a final year project that involves automatic monitoring of a patient's health, hereby bringing mobile inteligence to health system.

android diabetes diabetic-patients googlesheets healthcare-application healthmonitoring iot java mobile-app

Last synced: 20 Aug 2025

https://github.com/cyclopsmc/integratedrest

Expose Integrated Dynamics networks as a REST API

forge hacktoberfest java minecraft

Last synced: 09 Mar 2026

https://github.com/creepy-pasta101/java-in-termux

This script will install java (openjdk-11/8) in termux without root! Available for aarch64 or armv8, arm64, armhf, armv7l, arm or arm32 or armv7 or aarch32

armv7l armv8 java jdk jdk11 jdk8 jdk9 openjdk openjdk11 openjdk8 openjdk9 termux

Last synced: 05 Oct 2025

https://github.com/oracle/oci-react-samples

A series of simple Cloud Native app using React JS frontend, various backends (Java, Python, DotNet) and the Autonomous database.

autonomous cloud-native docker helidon-microservice java javascript kubernetes livelabs oci oracle-database react reactjs spring springboot workshop

Last synced: 07 Apr 2025

https://github.com/renfei/discuz-ucenter-api-for-java

最完美的Discuz UCenter的JAVA API接口,简单易用,完全免费!

api bbs comsenz discuz java sso ucenter uhome

Last synced: 20 Aug 2025

https://github.com/grazen0/userlogin

A simple and versatile authentication plugin for Minecraft

bukkit java minecraft spigot

Last synced: 06 Aug 2025

https://github.com/botbahlul/android-autosrt-v2

ANDROID APP to AUTO GENERATE SUBTITLE FILE and TRANSLATED SUBTITLE FILE (using unofficial online Google Translate API) for any audio/video files using 2 ACTIVITIES

android caption chaquopy ffmpeg google-translate-api googletranslate java python speech-recognition speech-to-text speechrecognition subtitle voice-recognition voice-to-text voicerecognition

Last synced: 19 Aug 2025

https://github.com/swisscom/update-java-ca-certificates

Small utility to convert the system trust store to a system Java KeyStore

ca-certificates java jks linux trust-store

Last synced: 15 Apr 2025

https://github.com/gregorriegler/seamer

refactoring tool that aims at making it easy to create characterization tests

characterization-tests golden-master golden-tests java refactoring refactoring-tools seam

Last synced: 17 Aug 2025

https://github.com/alimranahmed/ci-calculator

CI-Calculator, A scientific calculator, built using JAVA. Front-end has been designed by java swing API.

java scientific-calculator swing

Last synced: 05 Oct 2025

https://github.com/hardiksinghbehl/spring-boot-qr-code-generator-reader-api

Spring-boot application exposing REST API endpoints to generate QR-code representing custom message and endpoint to read the decoded message using java and google's zxing library.

java qrcode-generator qrcode-reader spring-boot zxing-qrcode

Last synced: 09 Apr 2025

https://github.com/apache/opennlp-addons

Mirror of Apache OpenNLP Add-ons

java library opennlp

Last synced: 19 Oct 2025

https://github.com/snowdrop/java-buildpack-client

A java buildpack (https://buildpacks.io/) platform implementation

buildpack buildpacks hacktoberfest java library paketo

Last synced: 12 Apr 2025

https://github.com/lihengming/potato-orm

:pencil:一个简单的ORM框架,寂寞消遣之作~

java orm sql

Last synced: 15 Apr 2025

https://github.com/aboueleyes/the-conqueror

A single player turn-based empire building game.

game java oop oops-in-java

Last synced: 30 Jun 2025

https://github.com/bamless/chromium-swe-updater

Auto-updater for codeaurora's Chromium for Sanpdragon custom builds.

android chromium codeaurora-chromium java updater

Last synced: 07 May 2025

https://github.com/toshimichi0915/threescan

One of the most powerful Minecraft server scanners in the world.

java minecraft minecraft-scanner port-scanner

Last synced: 01 Jul 2025

https://github.com/yenilikci/java-springboot

(Java & React) Yazılım Geliştirici Yetiştirme Kampı Java kısmına ait yazılan kaynak kodlar ve ödev çalışmalarım.

aop inheritance java mernis nlayer-architecture oop open-closed-principle rest-api spring

Last synced: 15 Apr 2025

https://github.com/zenvia/zenvia-sdk-java

Zenvia CPaaS SDK for Java

api facebook java sdk sms whatsapp

Last synced: 27 Oct 2025

https://github.com/almasb/fxgl-mavengradle

A template project for FXGL games using Maven and Gradle.

fxgl fxgl-games gradle java maven

Last synced: 26 Feb 2026

https://github.com/nelsonmestevao/uminho

:books: University projects, exercises & notes

c cpp data-science distributed-systems haskell java software-engineering

Last synced: 27 Oct 2025

https://github.com/wpernath/quarkus-grumpycat

A simple fat-cat / packman like multi player game, with a logic server written in Java with Quarkus and a Engine written in JavaScript with the MelonJS game framework.

argocd game game-development gitops html5-canvas java javascript kubernetes melonjs openshift quarkusio tekton-pipelines

Last synced: 25 Feb 2026

https://github.com/esoxjem/algorithms

Algos and Data Structures

algorithms data-science dsa java kotlin

Last synced: 06 Mar 2026

https://github.com/renatoalencar/java-brazuca

Um hack do OpenJDK que suporta Java em Português

java

Last synced: 18 Jul 2025

https://github.com/minhaskamal/alphabetrecognizer

Simple Optical Character Recognizer (english-ocr-image-to-text-recognition-sample-trainig-alphabet-photo-data-database-dataset)

alphabet-recognizer data database english image-processing java machine-learning ocr sample template-matching text-recognition training-data writing

Last synced: 11 Apr 2025

https://github.com/kavithma-thushal/computershop-management-system-1st-sem-final

Developed this Standalone Application as the first semester's final project for the Graduate Diploma in Software Engineering at the Institute of Software Engineering

final-project java javafx mysql

Last synced: 11 Jul 2025

https://github.com/zortax/zreddit

A simple but yet beautiful Reddit client

client java javafx reddit ui

Last synced: 03 Apr 2025

https://github.com/wurst-imperium/mo-glass

Minecraft mod that adds glass stairs and glass slabs. They look great in any build and connect seamlessly with vanilla glass blocks.

building-blocks crafting-recipes curseforge curseforge-mod decoration-blocks fabric fabricmc-mod glass java minecraft minecraft-fabric-mod minecraft-mod mod modded-minecraft modrinth modrinth-mod neoforge neoforge-mod

Last synced: 12 Apr 2025

https://github.com/phoenix616/randomteleport

Bukkit plugin which lets you teleport players to random locations. [v2 requires 1.13+]

bukkit java minecraft paper plugin random-teleport spigot wildtp

Last synced: 21 Mar 2025

https://github.com/kakarottocui/schoolapplet

基于java SpringBoot和uniapp的校园信息交流小程序

java mysql springboot uniapp

Last synced: 30 Oct 2025

https://github.com/jrvansuita/shoppinglist

📝 My very first Android app, a shopping list app.

android android-application checklist java lists markers price quantities shopping shoppinglist

Last synced: 02 Feb 2026

https://github.com/ahmadaghazadeh/signalrandroid

SignalR Android Client Server sample

android csharp java server-side signalr

Last synced: 04 Jul 2025

https://github.com/hindol/commons

Ad-hoc collection of re-usable Java classes.

ini-parser java url watchservice xml

Last synced: 22 Feb 2026

https://github.com/ksaua/remock

Spring mocking simplified

java mockito spring-test

Last synced: 26 Jan 2026

https://github.com/sondosaabed/predicting-diabetes-with-decision-trees

💉🤒 The project was built using maven project utilized WEKA in building the decision tree model and JavaFX in building GUI 💉🤒

artificial-intelligence-courses decision-trees diabetes-prediction java javafx maven maven-pom weka-library

Last synced: 09 Apr 2025

https://github.com/payu/ratel

Service Discovery - SOA in a simple way

java

Last synced: 11 Mar 2026

https://github.com/objectionary/eo-hamcrest

Hamcrest Matchers for EO Programming Language

eolang hamcrest hamcrest-extensions hamcrest-matchers java tdd testing

Last synced: 14 Jan 2026

https://github.com/hms-core/hms-location-demo-harmonyos

Huawei HarmonyOS sample code implements the API invoking of Location Kit open capabilities, facilitating your experience of related functions.

harmonyos hms huawei java location locationkit

Last synced: 04 Jul 2025

https://github.com/valentinefernandes/online-library-project

This is an online library project which is developed in Java, JSP, Servlet and MySQL

css html java javascript jsp jsp-servlet mysql server

Last synced: 23 Apr 2025

https://github.com/k33ptoo/swing-signup-example

Java Netbeans Metro UI Design - Sign Up Example 2017

java javaswing

Last synced: 30 Oct 2025

https://github.com/vatsalkesarwani12/headlines

HeadLines is a 📰 news app that delivers you with the latest news. It has interactive UI and easy to use. The app can be scrolled offline to watch your bookmarked news. Give this app a try and let me know.

android android-app bookmarks constraint-layout firebase headlines java news newsapi retrofit2 room room-database

Last synced: 23 Mar 2025

https://github.com/raydac/japagoge

Simple animated PNG and GIF screen recorder

apng gif gif-recorder java peek screen-capture screencast screencast-recording

Last synced: 02 Aug 2025

https://github.com/birchb1024/genyris

Genyris presents a new programming paradigm. Objects can belong to multiple classes independent from construction allowing data to be classified into types after creation.

functional-programming java lisp-interpreter scheme-interpreter semantic-web

Last synced: 06 Apr 2025

https://github.com/redhat-middleware-workshops/enter-serverless-functions

This hands-on workshop teaches how developers creates/builds/deploys serverless functions using Quarkus on Knative, AWS Lambda

aws-lambda functions java knative kubernetes microservices openshift quarkus serverless

Last synced: 17 Sep 2025

https://github.com/teverett/paradoxreader

Paradox DB File Reader

database java paradox reader

Last synced: 22 Mar 2025

https://github.com/moonstoneid/siwe-java

Java lib for Sign-In with Ethereum (EIP-4361)

eip-4361 java sign-in-with-ethereum siwe

Last synced: 07 Mar 2026

https://github.com/unnamed/nmessage

Simple, flexible and helpful library to handle messages with internationalization support for Java 8+

bukkit bungeecord i18n java json minecraft properties

Last synced: 08 Jul 2025

https://github.com/synthrose/art-of-alchemy

An alchemical mod for Minecraft / Fabric.

alchemy fabricmc fabricmc-mod game java minecraft minecraft-mod mod

Last synced: 12 Apr 2025

https://github.com/nomemory/neat-sample-databases-generators

Neat java scripts (!not javascript) to generate arbitrary data for various sample databases (hr schema, classicmodels, etc.)

classicmodels java jbang mariadb mockneat mysql postgresql sample-databases sample-schemas sql

Last synced: 26 Mar 2025

https://github.com/eliasnogueira/health-check-api

An easy way to execute a health check against your API endpoint

api health-check java service test testing

Last synced: 28 Oct 2025

https://github.com/daviqzr/cursofx

Exercício - Curso (Boundary, Control e Entity) – Usando JavaFX, Conectando ao Banco De Dados SQL Server

banco-de-dados crud fatec-zona-leste java javafx sql-server

Last synced: 20 Aug 2025

https://github.com/exasol/parquet-io-java

Java library to read Parquet files.

exasol exasol-integration foundation-library java parquet

Last synced: 10 Apr 2025

https://github.com/xvik/dropwizard-orient-server

Embedded OrientDB server for dropwizard

dropwizard java orientdb

Last synced: 13 Apr 2025

https://github.com/amanmj/PC-Remote-Control

A telegram bot to remotely control anyone's PC remotely through your phone/PC.

hacktoberfest java telegram telegram-bot

Last synced: 12 Apr 2025

https://github.com/BeboKhouja/ADB-GUI

ADB GUI is a Java-based GUI addon for ADB.

adb android gui java

Last synced: 13 Apr 2025

https://github.com/xdwangwei/elasticsearch-jd

最简单的ElasticSearch入门练手项目,前后端分离,SpringBoot+ElasticSearch+Vue仿京东搜索,并高亮关键字显示,适合刚学习ES的小伙伴们~~~

elasticsearch java jsoup springboot vue

Last synced: 08 May 2025

https://github.com/tritondatacenter/java-http-signature

Library for performing RSA signed HTTP requests in Java

http-signature java joyent manta triton

Last synced: 11 Jan 2026

https://github.com/pavelicii/allpairs4j

🧮Pairwise combinations generator with constraints for Java

allpairs combinatorial-testing java pairwise pairwise-testing test-automation testing testing-tools

Last synced: 11 Jan 2026

https://github.com/alina-yur/public-speaking

Previous & upcoming conference talks

graalvm java public-speaking

Last synced: 21 Mar 2025

https://github.com/splitbrain/giraffe

A conference schedule planner for Android

android android-application calendar ical ical-parser java scheduling

Last synced: 15 Apr 2025

https://github.com/JakeJMattson/TouchControl

Control at your fingertips.

camera java nircmd opencv touchscreen

Last synced: 09 May 2025