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/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/asadiahmad/plantsvszombies

Game with JavaFX framework for Advanced Programming Course

game java javafx javafx-application plants-vs-zombies plantsvszombies ui ui-design ux ux-design

Last synced: 28 Oct 2025

https://github.com/nextbreakpoint/nextfractal

NextFractal is an application for creating fractals and other algorithmically generated images

creating-fractals fractal-algorithms fractal-rendering fractals java javafx javafx-application julia-fractal mandelbrot-fractal

Last synced: 17 Jan 2026

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/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/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/greenback-inc/greenback-java

Java library to build modern applications with high-def itemized financial data. OCR, AI, and NLP for receipts, invoices, bills, and RFC822 email messages.

accounting android bills email fintech groovy invoices java kotlin nlp-machine-learning ocr receipts rfc822 scala

Last synced: 12 Apr 2025

https://github.com/ivangfr/spring-kafka-de-serialization-types

The goal is to play with Spring Kafka. We've implemented 5 examples of producer and consumer services that exchanges messages through Kafka using different types of serialization and approaches.

avro docker java jib json kafka schema-registry spring-boot spring-kafka spring-web-mvc

Last synced: 10 Apr 2025

https://github.com/linwin-cloud/linwin-sploit

LinwinSploit is a Penetration testing toolkit for Linux and android Termux. LinwinSploit是一款用于Linux和安卓Termux的渗透测试工具。 It can attack and run trojan virus on target host. 它能够攻击并在目标主机上运行木马。 Use these toolkits carefully. If you don't allow this, you may have a lot of terrible. 用这些工具使的时候小心点,如果你不遵守这条,你可能会有一些麻烦

hacker http java kali linux python web

Last synced: 15 Jul 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/atd/handynotes

Simple Android application that provides widgets to have notes at hand

android java notes

Last synced: 01 Sep 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/cyclopsmc/colossalchests

For when regular chests are too small.

forge hacktoberfest java minecraft

Last synced: 01 May 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/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/zhixiangli/gomoku-battle

Gomoku Battle is a cross-language cross-system battle platform.

agent ai ai-agents alpha-beta-pruning battle-platform five-in-row game gobang gomoku java javafx

Last synced: 16 Apr 2025

https://github.com/mikyll/javafx-multiplayerlobbysystem

Lobby System Template for a multiplayer java game, with chat and other features, using JavaFX and socket TCP (will be extended to UDP).

board-game chat game java javafx kick lobby multiplayer multithreading ready room socket stream synchronized tcp template

Last synced: 14 Jun 2025

https://github.com/adambien/java-plain

The shortest possible maven template / quickstarter for Java

java java17 maven quickstarter template

Last synced: 08 Aug 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/sebischair/SimpleNLG-DE

German version of SimpleNLG 4

java natural-language nlg simplenlg

Last synced: 14 May 2025

https://github.com/suyashsonawane/javanet

Understanding and Implementing Neural Networks in Java from Scratch 💻 Learning the popular concept in the most 💪strongly typed language

java

Last synced: 22 Mar 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/jgettext/gettext-commons

Internationalization (i18n) through GNU gettext and Java ResourceBundles

gettext-library i18n java maven

Last synced: 16 Sep 2025

https://github.com/unruly/junit-rules

A collection of useful JUnit rules from Unruly's codebases

java junit junit-rule tdd

Last synced: 24 Jul 2025

https://github.com/querystream/querystream

Build JPA Criteria queries using a Stream-like API

java jpa jpa-criteria-api persistence streams

Last synced: 26 Dec 2025

https://github.com/noleme/noleme-flow

A library enabling DAG structuring of data processing programs such as ETLs

dag dataflow etl-pipeline java workflow workflow-engine

Last synced: 12 Jan 2026

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/zenvia/zenvia-sdk-java

Zenvia CPaaS SDK for Java

api facebook java sdk sms whatsapp

Last synced: 27 Oct 2025

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/apache/opennlp-addons

Mirror of Apache OpenNLP Add-ons

java library opennlp

Last synced: 19 Oct 2025

https://github.com/xiongtx/jdecomp

Emacs interface to Java decompilers

decompiler emacs java

Last synced: 13 Oct 2025

https://github.com/bshao001/goworld

A client-server network socket based user interface for Go game, dedicated for two players . 围棋游戏网络双人版。

client-server gogame java swing-gui weiqi

Last synced: 14 Oct 2025

https://github.com/apache/tomcat-training

Apache Tomcat Training Material

http java javaee network-server tomcat

Last synced: 19 Oct 2025

https://github.com/kerosene-labs/kindling

The fuel that'll ignite your application. A programmable TLS HTTP/1.1 server with no dependencies.

framework java lightweight ssl tls web-server

Last synced: 15 Apr 2025

https://github.com/jean-merelis/coffeepot-br-sped-fiscal

br - Componente para escrita do SPED Fiscal

java sped sped-fiscal spedfiscal

Last synced: 20 Feb 2026

https://github.com/fzakaria/ascii85

A Java library for working with Ascii85, also called Base85 - a form of binary-to-text encoding

decoding encoding java

Last synced: 22 Mar 2025

https://github.com/cyberark/conjur-api-java

Java client for the CyberArk Conjur API

api-client conjbot-notify conjur conjur-core conjur-sdk core java

Last synced: 10 Apr 2026

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/sageserpent-open/americium

Generation of test case data for Scala and Java, in the spirit of QuickCheck. When your test fails, it gives you a minimised failing test case and a way of reproducing the failure immediately.

java parameterised-tests property-based-testing scala testing-tools

Last synced: 28 Feb 2026

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/imgix/imgix-java

A Java client library for generating URLs with imgix

images imgix java signing-imgix-urls src srcset url-builder

Last synced: 12 Apr 2025

https://github.com/julianmendez/cel

A lightweight Description Logic reasoner for large-scale biomedical ontologies

automated-reasoning java lisp owl-api protege-plugin tu-dresden

Last synced: 09 Mar 2026

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

Troilus is a Java client library for Cassandra.

cassandra datastax-java-driver java reactive-streams

Last synced: 05 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/hkhc/electricspock

Bridging Robolectric and Spock framework.

android groovy java robolectric spock-framework unit-test

Last synced: 05 Apr 2025

https://github.com/JakeJMattson/TouchControl

Control at your fingertips.

camera java nircmd opencv touchscreen

Last synced: 09 May 2025

https://github.com/rattydave/docker-jupyterhub

Multi user Jupyterhub with C++, Java, Python, Tensorflow, Julia, SQL, NodeJS, Bash and more!

beakerx clojure groovy java jupyter-notebook jupyterhub machine-learning scala sql torch

Last synced: 14 Apr 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/vatsalkesarwani12/firebaseauth

FireBase Auth app built to authenticate user via firebase using Email Id , Phone Number , Google , Facebook , Yahoo , Twitter , Github , also Anonymous Sign In .

android anonymous email facebook firebase firebase-auth firebaseauth github google java phone phone-number twitter yahoo

Last synced: 23 Mar 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/ahmetfurkandemir/neu-java-oop

Necmettin Erbakan University - Object Oriented Programming (Java)

java object-oriented-programming oop

Last synced: 15 Apr 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/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/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/ep2p/kademlia-api

Java Kademlia Library. Highly configurable, Generic and very abstract to cover most usage scenarios.

dht java kademlia p2p p2p-network

Last synced: 26 Apr 2025

https://github.com/mkutz/shakespeare

A framework helping to write tests like screenplays

api-testing java screenplay screenplay-pattern selenium test-automation testing testing-framework

Last synced: 05 Sep 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/komiya-atsushi/xor-filter

Production-ready Java implementation of the Xor Filter.

java probabilistic-data-structures xor-filter

Last synced: 13 Apr 2025

https://github.com/mikesafonov/prometheus-telegram-alert

Transfer alerts from Prometheus Alertmanager to Telegram chat and channels using webhook.

java prometheus-alertmanager spring-boot telegram

Last synced: 12 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: 13 Apr 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/4drian3d/mckotlin

Get the ability to run and develop Kotlin plugins on your Minecraft server or proxy

java kotlin minecraft minecraft-plugin paper-plugin spigot sponge-plugin velocity-plugin

Last synced: 29 Dec 2025

https://github.com/paulsandoz/jersey-netty-app

Tutorial on Java 9, docker and kubernetes

docker grafana java kubernetes monitoring prometheus

Last synced: 09 Jul 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/tangllty/tang-boot

tang-boot is a front-end and back-end separation permission management system based on Spring Boot 3 + Spring Security + MyBatis + Redis + Jwt

java jwt-authentication mybatis permission-management redis spring-boot spring-boot-3 spring-security

Last synced: 17 Jan 2026

https://github.com/ekryd/echo-maven-plugin

A maven plugin that lets you output text during Maven build

echo hacktoberfest java maven maven-plugin output print

Last synced: 20 Aug 2025

https://github.com/ivangfr/https-springboot-react

The goal of this project is to play with HTTPS and enable it in Spring Boot applications. For it, we will implement a Spring Boot Rest API that will have its endpoints ready to accept and server over HTTPS. Furthermore, a Spring Boot Shell Java application and a Frontend React application will be implemented to consume movies-api.

h2 https java javascript keytool pkcs12 react semantic-ui-react spring-boot spring-data-jpa spring-shell spring-web-mvc springdoc-openapi

Last synced: 10 Apr 2025

https://github.com/maulingmonkey/jerk

JERK: Java Embedding Rust Kit

java jvm metabuild rust

Last synced: 10 Apr 2025

https://github.com/pacifiquem/libra

♎Library Management Information System ♎.

hibernate java maven sql

Last synced: 07 May 2025

https://github.com/saberglow/codility_tasks

Codility Tasks & Solutions [100% Performance]

c codility codility-100 codility-solutions cpp java java-11

Last synced: 10 Apr 2025

https://github.com/bertrandmartel/sim-password-wallet

Android application interacting with a JavaCard applet installed on SIM card

android java javacard smartcard

Last synced: 07 May 2025

https://github.com/esoxjem/algorithms

Algos and Data Structures

algorithms data-science dsa java kotlin

Last synced: 06 Mar 2026

https://github.com/avniproject/avni-server

Backend APIs for Avni

java postgresql spring-boot

Last synced: 17 Jan 2026

https://github.com/jakewins/jaa

Actionable memory analysis for JVM languages

java jvm jvm-performance kotlin openjdk scala

Last synced: 10 Apr 2025

https://github.com/harlonwang/gradle-publish-plugin

Gradle plugin that supported publish all of your Java, Kotlin or Android libraries to any Maven Repository.

android gradle java kotlin library plugin publish

Last synced: 10 Apr 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/adrianmilne/jpa-lucene-spring-demo

Demo project using JPA, Lucene, Spring, DBUnit and JMockit - to persist and search for simple Book data.

dbunit demo java jmockit jpa lucene spring

Last synced: 26 Mar 2025

https://github.com/iskonstantin/cryptoutils

Terminal program for simple seed generation, encryption, decryption, backup and more.

backup cli cryptocurrency java seed shamir-secret-sharing

Last synced: 05 Jul 2025

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