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/orenskl/pico-jvm

A small Java virtual machine for Raspberry Pi Pico. This is based on the CLDC Profile for embedded devices.

arm bare-metal cldc cortex-m embedded j2me java jvm midp phoneme pico raspberry raspberry-pi raspberry-pi-pico real-time

Last synced: 01 Jun 2026

https://github.com/auties00/optionless

Desugar optional calls for a null safe type system with no performance hits

java java11 java17 javac-plugin optional

Last synced: 13 Feb 2026

https://github.com/devfinwiz/alas

This is a full fledged advanced automated library software built in Java Netbeans to reduce manual efforts of the librarian, students to ensure smooth functioning of library by involving RFIDs.

java jdbc library-automation rfid-rc522 sqlite

Last synced: 02 Aug 2025

https://github.com/ajermakovics/json

Simple and convenient Json in Java

java json

Last synced: 13 Apr 2025

https://github.com/caoimhebyrne/compact-chat

Clean up your chat by removing duplicate messages!

fabric-mod java minecraft

Last synced: 12 Apr 2025

https://github.com/cowwoc/pouch

Inversion of Control that's designed for ease of use and debugging

dependency-injection inversion-of-control java service-locator variable-scope

Last synced: 13 Sep 2025

https://github.com/scndry/jackson-dataformat-spreadsheet

A Java library (Jackson extension) for reading and writing Excel spreadsheets (XLSX/XLS) as POJOs.

data-binding excel jackson jackson-dataformat java ooxml poi pojo spreadsheet xls xlsx

Last synced: 25 Apr 2026

https://github.com/cyclopsmc/integratedtunnels

Transfer other energy, items and fluids over Integrated Dynamics networks

forge hacktoberfest java minecraft

Last synced: 01 May 2025

https://github.com/frankchen021/bithon

An full stack observability platform

agent alerting apm diagnosis java logging metrics opentelemetry tracing

Last synced: 10 Mar 2026

https://github.com/eclipse-rap/org.eclipse.rap

Eclipse RAP Runtime (Remote Application Platform)

eclipse java javascript rcp swt

Last synced: 19 Apr 2025

https://github.com/aerokube/chrome-developer-tools-protocol-java-example

An example of using Java client to work with Chrome Developer Tools Protocol in Selenoid

chrome developer-tools java protocol selenoid

Last synced: 30 Jun 2025

https://github.com/apache/sling-org-apache-sling-dynamic-include

Apache Sling Dynamic Include

java sling

Last synced: 24 Mar 2025

https://github.com/timostrating/parkingsimulator

Project 1.2 - A simulation project for school

gradle hanzehogeschool java libgdx libgdx-game rollercoaster tycoon

Last synced: 21 Apr 2025

https://github.com/nasa/ziggy

Ziggy, a portable, scalable infrastructure for science data processing pipelines, is the child of the Transiting Exoplanet Survey Satellite (TESS) pipeline and the grandchild of the Kepler Pipeline.

algorithm analysis arc data data-analysis data-reduction java k2 kepler linux macos nasa open-source pipeline science tess ziggy

Last synced: 09 May 2026

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

IEX Trading library to parse TOPS and DEEP multicast packets

deep feed hist iex iex-trading iextrading java market-data tops udp

Last synced: 12 Oct 2025

https://github.com/ngageoint/mgrs-java

Military Grid Reference System Java Library

java mgrs military-grid-reference-system nga

Last synced: 14 Apr 2025

https://github.com/florianmichael/dietrichevents2

One of the fastest Java event systems in the world using compiler optimizations, which still has a lot of features

event event-management eventbus events java lambda listener

Last synced: 28 Apr 2025

https://github.com/point85/shift

The Shift library project manages work schedules with teams and shift rotations.

java shift shift-calendar work-calendar work-schedule

Last synced: 23 Apr 2025

https://github.com/swiftjava/java_swift

Support code for Swift Java Bridge

java swift swift-java-bridge

Last synced: 19 Feb 2026

https://github.com/saiupadhyayula/java-sftpserver

A simple SFTP Server implemented using Apache Mina SSHD library using Java and Spring boot

java java-sftpserver sftp-server

Last synced: 25 Jul 2025

https://github.com/ewyboy/oretweaker

Add, remove, tweak and configure ore and underground generation features for Minecraft Forge

forge forge-mod java minecraft minecraft-forge minecraft-forge-mod mod modded modded-minecraft ore ores world-gen world-generation world-generator

Last synced: 04 Oct 2025

https://github.com/terma/fast-select

Extremely fast and compact in-memory embedded column oriented database

cache-storage compact java lock-free nosql-database storage

Last synced: 25 Jul 2025

https://github.com/junghoon-vans/spring-data-meilisearch

Provide support to increase developer productivity in Java when using Meilisearch. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style data access.

ddd framework java meilisearch spring spring-data

Last synced: 04 Jan 2026

https://github.com/fernanda-kipper/microservice-java

This repository contains a simple microservice example in Java built during a live in my Youtube Channel

feign feign-client java java-spring microservice

Last synced: 20 Sep 2025

https://github.com/cassiomolin/jersey-websockets-undertow

Example of REST API along with WebSocket endpoint using Undertow, Weld, Jersey and JSR 356.

cdi java jersey jsr356 undertow websockets weld

Last synced: 01 Sep 2025

https://github.com/sdrausty/docsbuildapks

docsBuildAPKs https://sdrausty.github.io/docsBuildAPKs/

android android-smartphone animation apk apk-signing eclipse-compiler java screenshot termux wiki

Last synced: 25 Mar 2025

https://github.com/etil2jz/sakura

Minecraft 1.18.2 Backport of Petal, a performance-oriented fork of Purpur intended to increase performance for entity-heavy servers by implementing multi-threaded and asynchronous improvements.

bloom-host bukkit craftbukkit java minecraft minecraft-api minecraft-performance minecraft-server paper petal spigot-fork

Last synced: 01 Oct 2025

https://github.com/harp077/sjce

Strong Java Chess Engines. SJCE - free portable cross-platform graphical chess game, 100% Java. See releases at https://sourceforge.net/projects/sjce/

chess engine game graphical java uci uci-engine xboard

Last synced: 27 Oct 2025

https://github.com/philipperemy/market-data

Module to retrieve realtime stock quotes of Paris stock exchange

cac40 dataset finance java market-data

Last synced: 25 Jul 2025

https://github.com/augustd/burp-suite-swaggy

Burp Suite extension for parsing Swagger web service definition files

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

Last synced: 16 Jan 2026

https://github.com/rebaze/integrity

Java library providing Merkle DAG structures

bitcoin blockchain dag java java-library

Last synced: 12 Jan 2026

https://github.com/mrcsparker/nifi-sqllookup-services-bundle

NIFI controllers for SQL record and attributes lookups with built-in caching

java jdbc nifi nifi-processor nifi-processors sql

Last synced: 07 Aug 2025

https://github.com/jpkhawam/nabu

Offline Android note taking app. Aimed to be modern-looking and capable, with a UI inspired by Google Keep's.

a11y accessibility android java note-taking notes-app xml

Last synced: 25 Jul 2025

https://github.com/saicone/ezlib

Runtime library/dependency loader & relocator for Java in a single class

dependency-manager java java16 java17 java21 java23 java8

Last synced: 04 Apr 2026

https://github.com/abhishekbvs/laundry-management-system

A web application for Laundry Management System developed with spring framework as part of JAVA project in curriculum

java spring-framework twilio-sms-api web-application

Last synced: 28 Oct 2025

https://github.com/primordialmoros/bending

Mod/plugin that brings the universe of Avatar: The Last Airbender to Minecraft

bending fabric java minecraft paper paper-api papermc sponge spongeapi

Last synced: 26 Oct 2025

https://github.com/rutujar/doctor-records-using-b-plus-tree-technique

6th SEM File Structures Mini project under VTU CBCS.

cpp file java netbeans-ide txt

Last synced: 29 Oct 2025

https://github.com/apache/cordova-discuss

Discussions on features and the future

cordova cplusplus csharp java javascript library mobile nodejs objective-c

Last synced: 19 Oct 2025

https://github.com/FeatureBaseDB/java-pilosa

Java client library for Pilosa

java pilosa

Last synced: 26 Oct 2025

https://github.com/jamius19/paddle-verifier

A lighweight Paddle.com webhook verification library for Java.

java paddle webhook

Last synced: 20 Jan 2026

https://github.com/sbt/sbt-jcstress

Trust no-one, and especially not memory visibility.

concurrency java openjdk sbt scala testing

Last synced: 10 Apr 2025

https://github.com/klappdev/jpml

Java pattern matching library

functional-programming java java-11 java-8 pattern-matching

Last synced: 10 Apr 2025

https://github.com/heruoxin/cachefunctionutil

Tiny helper class to provide cache for the result of repeated functions.

android java

Last synced: 17 Jun 2025

https://github.com/chinabugotech/hutool4

A set of tools that keep Java sweet.

http hutool java json orm tool util

Last synced: 11 Apr 2025

https://github.com/komiya-atsushi/fast-rng-java

fast-rng: Fast random number generator for Java

java random-number-generators rng

Last synced: 13 Apr 2025

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

Mirror of Apache Karaf Cave

java karaf network-server osgi

Last synced: 10 Apr 2025

https://github.com/sfuhrm/sudoku

A very fast Java Sudoku library implementation along with a command line client

algorithm fast-algorithm java library riddle solves-riddles sudoku sudoku-generator sudoku-java-library sudoku-solution-finder sudoku-solver

Last synced: 05 Apr 2025

https://github.com/auula/s2s

s2s is a command line tool for database reverse engineering.

command database go java reverse-engineering rust

Last synced: 12 Jan 2026

https://github.com/romankh3/flights-monitoring

Application for monitoring flight cost based on Skyscanner API. Application deployed on Heroku and application API can be tested on Swagger UI

client flights java skyscanner ukrainian

Last synced: 02 Sep 2025

https://github.com/gzyangkui/vertx-mall

Quickly build high performance mall

java reactive-programming vertx vertx-web

Last synced: 06 Apr 2025

https://github.com/souzen/light-jpf

Lightweight Java Plugin Framework

classloader java maven maven-plugin pluginframework plugins

Last synced: 14 Jan 2026

https://github.com/axdoomer/killbox

Multiplayer 3D FPS written in Java

3d-game-engine fps-game java lwjgl opengl

Last synced: 25 Mar 2025

https://github.com/whilein/te4j

Fast and easy template engine

fast java template-engine

Last synced: 14 Jan 2026

https://github.com/ralscha/bsoncodec

Collection of org.bson.codecs.Codec implementations for MongoDB

bson codec-implementations java mongodb

Last synced: 24 Apr 2025

https://github.com/xbynet/crawler

A simple and flexible web crawler framework for java.

crawler httpclient java jsoup spider

Last synced: 14 Jan 2026

https://github.com/nickbullll/http-simple-cheatsheet

Simple HTTP status codes cheatsheet 🦄

cheatsheet guide http https java nodejs web webapp website

Last synced: 15 Mar 2025

https://github.com/drandarov-io/spring-5-angular-4-gradle-example

An example of using Spring 5 with Angular 4 configured by Gradle

angular angular-4 angular-5 angular-cli angularjs gradle java spring spring-5

Last synced: 10 Jun 2025

https://github.com/apache/airavata-php-gateway

Mirror of Apache Airavata PHP Gateway

airavata big-data cloud java network-server

Last synced: 22 Apr 2025

https://github.com/apache/camel-kamelets-examples

Apache Camel Kamelets Examples

camel integration java low-code

Last synced: 19 Oct 2025

https://github.com/chuntungho/gist-snippet

An IntelliJ plugin of code snippet tool based on GitHub Gist

code-snippet gist gist-client idea-plugin java

Last synced: 21 Jan 2026

https://github.com/stephengold/monkeywrench

A versatile library for loading 3-D assets into JMonkeyEngine (code has New BSD license)

3d-models asset-loader assimp importer java jme3 jmonkeyengine jmonkeyengine3 jvm-library lwjgl3 open-source

Last synced: 13 Oct 2025

https://github.com/mrtimeey/java-live-templates

A set of java live templates for use with JetBrains IDEs.

intellij intellij-idea java jetbrains live-templates

Last synced: 23 Oct 2025

https://github.com/codeturion/codesurface

Give your AI agent instant API lookups instead of expensive source file reads. MCP server for C#, Go, Java, Python, and TypeScript.

ai claude code-intelligence csharp cursor developer-tools go golang java llm mcp mcp-server python typescript

Last synced: 04 Mar 2026

https://github.com/atolcd/hop-gis-plugins

🗺 GIS plugins for Apache Hop Orchestration Platform

data dxf etl geojson geopackage gis gpx hop java mif-mid shp spatialite

Last synced: 23 Jan 2026

https://github.com/sabaurgup/java_react-bootcamp

Software Developer Training Camp (JAVA + REACT) works under the guidance of Engin Demiroğ

java java-demo java-fundamentals react spring-boot

Last synced: 27 Jun 2025

https://github.com/g4s8/teletakes

True Object-Oriented Telegram Bot Framework

framework java oop telegram

Last synced: 09 Apr 2025

https://github.com/circleci-public/cimg-openjdk

The CircleCI OpenJDK (Java) Docker Convenience Image.

circleci circleci-cimg convenience-image docker java openjdk

Last synced: 10 Apr 2025

https://github.com/geerlingguy/catholic-diocese-app-android

Catholic Diocese App for Android

android app appstore catholic diocese java

Last synced: 18 Mar 2025

https://github.com/vankka/enhancedlegacytext

An alternative input format for Adventure

java minecraft

Last synced: 21 Mar 2025

https://github.com/fracpete/collective-classification-weka-package

Semi-Supervised Learning and Collective Classification

java machine-learning plugin semi-supervised-learning weka

Last synced: 22 Apr 2025

https://github.com/oracle-samples/modern-app-dev

OCI sample application that follows the principals of the Oracle Modern App Development framework

event-driven java messaging oci reference-architecture reference-implementation terraform web

Last synced: 18 Jun 2025

https://gurkenlabs.github.io/input4j/

Input4j 🎮 The pure, lightweight and cross-platform Java library for unified gamepad and controller input

controller cross-platform dependency-free directinput evdev ffm-api foreign-function-and-memory-api game-development gamepad input iokit java jni-alternative linux macos performance polling rumble windows xinput

Last synced: 05 May 2026

https://github.com/joaopauloaramuni/playframework

Repo Play Framework

java mvc playframework poo

Last synced: 13 Jun 2025

https://github.com/apache/iotdb-tsfile-viewer

Apache IoTDB TsFile Viewer

java timeseries tsfile

Last synced: 10 Apr 2025

https://github.com/jumman04/analogue-watch

Analog Clock Library is a customizable Android library that displays time in a traditional analog format. Easily integrate a stylish analog clock into your app with adjustable colors, markers, hand styles, ticking sound effects, and more.

analog-clock android android-development android-library clock-widget custom-view customizable customizable-ui java kotlin library open-source time-display ui-component ui-design

Last synced: 14 Apr 2025

https://github.com/e-kotov/rjavaenv

Java Environments for R Projects

environments java r reproducibility reproducible-research

Last synced: 12 Aug 2025

https://github.com/innfactory/akka-persistence-gcp-datastore

akka-persistence-gcp-datastore is a journal and snapshot store plugin for akka-persistence using google cloud firestore in datastore mode.

akka akka-persistence cloud cqrs datastore event-sourcing firestore gcp-datastore google java scala

Last synced: 14 Apr 2025

https://github.com/zielu/svntoolbox

Enhances IntelliJ IDEA SVN integration

intellij-plugin java svn

Last synced: 23 Mar 2025