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/andy489/data_structures_and_algorithms

Data structures. Algorithms. Problems and Solutions.

algorithms cpp data-structures java

Last synced: 26 Jul 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/digitalpetri/strict-machine

A declarative DSL for building asynchronously evaluated Finite State Machines on the JVM

finite-state-machine fsm java state-machine

Last synced: 14 Apr 2025

https://github.com/nervosnetwork/ckb-sdk-java

Java SDK for CKB

blockchain ckb java nervos

Last synced: 07 Apr 2025

https://github.com/coldnew/twse-captcha-solver-dl4j

A deeplearning based captcha solver for http://bsr.twse.com.tw/bshtm/

captcha-solver deeplearning4j java stock taiwan twse

Last synced: 12 Apr 2025

https://github.com/uttesh/pdfngreport

This is the pdf report plugin library written for testng/selenium frameworks, this listener will generate the pdf report on testcases execution, its very simple to configure no need to write any code.

ant java listener pdf-report pom selenium selenium-java testng

Last synced: 05 Sep 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/josdem/vetlog-spring-boot

Maintain your pet history organized

flyway gradle groovy java junit5 spring-boot thymeleaf

Last synced: 22 Apr 2025

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/xxdark/unsolver-8306275

Enables EnableDynamicAgentLoading in a remote process

encapsulation java java-agent

Last synced: 19 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/goldmansachs/gs-xsd2bean

A dependency-free XML to Object Mapper

java mapper xml

Last synced: 11 Apr 2025

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/kstenschke/dummytext-plugin

"Dummy Text Generator" plugin for Jetbrains IDEs

intellij intellij-plugin java open-api phpstorm plugin

Last synced: 11 Apr 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/raydac/jprol

Yet another Java based Prolog engine

engine gui-editor java prolog prolog-engine prolog-programming-language

Last synced: 08 Jan 2026

https://github.com/okumin/influent

A Fluentd server running on the JVM

fluentd java

Last synced: 14 Jan 2026

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/jeltedeproft/Norii

A turn based strategy rpg - Java (libgdx)

2d game java libgdx open-source turn-based-strategy

Last synced: 11 Mar 2025

https://github.com/apache/camel-karaf

Apache Camel Karaf support

camel integration java karaf osgi

Last synced: 22 Feb 2026

https://github.com/adambien/best-of-java-shorts

A selection of Java Shorts from http://youtube.com/bienadam/shorts that I sometimes present at conferences

conferences devoxx infoshare java shorts w-jax

Last synced: 29 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/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/faceless2/zeroconf

A very simple pure Java implementation of Multicast DNS SD (Service Discovery)

dns-sd java service-discovery zeroconf

Last synced: 07 Mar 2026

https://github.com/cajuncoding/pdftemplating.xslfo

This is a C# .NET solution that tests and illustrates the capabilities of Xsl-FO for dynamically generating PDF documents. It provides a way to generate the XSL-FO source xml from Xslt or Razor Templating to address various development teams. And it provides basic WinForms Application that can be used to aid in developing the Xslt and Xsl-FO markup.

apache-fop azure-functions csharp fonet fop java microservice pdf-files pdf-generation pdf-rendering pdf-reports pdf-templating razor-templates razor-views serverless template-engine xsl-fo xslfo xslt xslt-template

Last synced: 16 Mar 2025

https://github.com/hellokoding/dockercompose-springboot-nginx

A simple Spring Boot web application running behind NGINX and inside Docker containers

docker-compose java maven nginx spring-boot

Last synced: 17 Aug 2025

https://github.com/rozidan/logger-spring-boot

A Spring Boot @Loggable annotation that will help you log your application more easily

annotations aop java spring-boot

Last synced: 12 Jan 2026

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/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/cl7/battlecity

Java Swing project to simulate classic 2D tank game. Supports Two player local game server. A* algorithm for AI.

battle-city java java-swing multiplayer player tank-game

Last synced: 21 Mar 2025

https://github.com/jgperrin/net.jgp.books.spark.ch02

Spark in Action, 2nd edition - chapter 2

apache-spark java java8 manning spark sparkwithjava

Last synced: 06 May 2025

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/beehive-lab/docker-tornadovm

Docker build scripts for TornadoVM on GPUs: https://github.com/beehive-lab/TornadoVM

docker gpu gpu-computing graalvm hardware-acceleration intel-gpu java nvidia opencl tornado-gpu tornadovm

Last synced: 27 Mar 2026

https://github.com/notakamihe/ecommerce-angular-spring

Built with the Spring Boot backend and the Angular frontend, this project is an e-commerce app where users can register, login, change profile, view products, view a product in detail, and add products to the cart.

angular full-stack java spring-boot typescript

Last synced: 28 Jun 2025

https://github.com/apache/beam-site

Apache Beam Site

beam big-data java python

Last synced: 05 Apr 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/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/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/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/Perry961002/Algorithms-LeetCode

:art:I practiced some LeetCode's algorithm problems with C++, Java, Python and Go, and also implemented some classical algorithms.

algorithmic-trading c-plus-plus go java python3

Last synced: 07 May 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/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: 04 Sep 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: 18 Jul 2025

https://github.com/augustd/burp-suite-software-version-checks

Burp extension to passively scan for applications revealing software version numbers

burp burp-extensions burp-plugin burpsuite java penetration-testing pentest scanning

Last synced: 16 Jan 2026

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/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/rameshmf/java-collections-framework-course

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

collections java java8

Last synced: 03 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/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/panga/fn-native-java

Fn Project Native Java Function using GraalVM

fnproject graalvm java

Last synced: 10 Apr 2025

https://github.com/netease/mebius

精准测试sdk

java

Last synced: 14 Apr 2025

https://github.com/zekunyan/linktextview

An Android TextView to add highly customizable and colorful link.

android-textview java link

Last synced: 15 May 2025

https://github.com/genexuslabs/javaclasses

GeneXus Standard Classes for Java and Android generators.

for-genexus-web-app generator genexus java maven standard-library

Last synced: 29 Aug 2025

https://github.com/EvelynSubarrow/Stormrunner

A set of modifications to run Lego Mindstorms' Stormrunner as a standalone application

game java lego-mindstorms stormrunner templar

Last synced: 02 Sep 2025

https://github.com/ucloud/ufile-sdk-java

UCloud 对象存储官方 SDK

java library object-storage ucloud-sdk

Last synced: 06 Apr 2025

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/pawandubey/griffin

speedy and simplistic static site generator.

griffin java static-site-generator

Last synced: 07 Mar 2026

https://github.com/davidgutierrezrubio/jmathanim

A Java library to make mathematical animations

animation java mathematics

Last synced: 11 Jan 2026

https://github.com/prestongarno/kotlinq

Kotlin DSL for GraphQL

graphql graphql-schema java kotlin

Last synced: 11 Jul 2025

https://github.com/mariazevedo88/travels-api

API for Travels Management - UFLA Comp Jr/20 anniversary event

api api-restful api-service http http-rest-api java java-11 java11 medium-article rest rest-api restful-api

Last synced: 10 Apr 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/nairuzabulhul/100-projects-challenge

:100: Projects from Sophomore to Senior year at AU | Resume: http://resume.github.io/?nairuzabulhul

algorithms android automation challenges css fullstack html ideas java javascript new programming python

Last synced: 30 Aug 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/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/shubham16g/simplewallpaperapp-android

A simple demo wallpaper app which contains wallpaper links (json file) in assets folder.

android android-app android-application androidapp androidapplication demo-app java wallpaper wallpaper-app wallpaperapp wallpaperapplication

Last synced: 12 Apr 2025

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/imagej/napari-imagej

Use ImageJ functionality from napari

fiji imagej java napari python

Last synced: 01 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/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/iuv/square

造一个方形的轮子

framework ioc java

Last synced: 17 Sep 2025