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/jgperrin/net.jgp.books.spark.ch15

Spark in Action, 2nd edition - chapter 15 - Aggregating your data

aggregation apache-spark java java8 manning spark sparkwithjava sql-aggregation udaf

Last synced: 11 Jun 2025

https://github.com/security-union/rust-vs-java

Personal study to compare java and rust

java rustlang study

Last synced: 03 Sep 2025

https://github.com/ajay-prabhakar/codeforces

Codeforces is Android version of Codeforces web. This app is made to integrate all the available Codeforces API into this app. :rocket:

android api codeforces java

Last synced: 29 Oct 2025

https://github.com/mechero/jackson-serialization-examples

Commonly-used Java JSON serialization examples

deserialization jackson java java-10 json objectmapper serialization

Last synced: 14 Jul 2025

https://github.com/zenwave360/json-schema-ref-parser-jvm

Parse, Resolve, and Dereference JSON Schema $ref pointers for JVM

java json-pointer json-schema resolver

Last synced: 06 Mar 2026

https://github.com/lucimber/meta-openjdk-temurin

This is a software layer for Java VMs, for use with OpenEmbedded and Yocto Project build systems. The binaries are provided by the Eclipse Temurin Project.

eclipse java jvm openembedded openjdk temurin yocto

Last synced: 10 Apr 2025

https://github.com/sondosaabed/palestine-cities-map

Find shortest paths between Palestinian cities using A* or Greedy BFS algorithms. Note: Heuristic values may not be accurate for the showcased 15 cities. 🇵🇸

a-star-algorithm country-map greedy greedy-best-first-search java javafx-application map palestine-map pathfinding

Last synced: 09 Sep 2025

https://github.com/robvanderleek/jlifx

LIFX control utility in Java

java lifx

Last synced: 07 May 2025

https://github.com/skullabs/kos

Zero-overhead and minimalist web framework for Vert.x

java kotlin microservice vertx

Last synced: 21 Jun 2025

https://github.com/digitalinnovationone/acceleration-a11y-clean-restful-apis

DIO International Acceleration: Accessibility (A11y) in Clean RESTful APIs.

acessibility clean-architecture java mongodb rest-api spring-boot

Last synced: 10 Sep 2025

https://github.com/divvun/giellakbd-android

A fork of LatinIME (by Google for Android), targeting marginalised languages that also deserve first-class status on mobile operating systems.

android android-app ime java keyboard keyboard-layout minority-language natural-language

Last synced: 16 Jul 2025

https://github.com/rubrica/rubrica

Libreria para Firma Digital

java

Last synced: 11 Jan 2026

https://github.com/cmdjulian/kirc

Sync / Coroutines / Reactive Container Registry Client written in Kotlin ready for GraalVM 🐋

coroutines docker fuel java jvm kotlin oci projectreactor reactive registry

Last synced: 07 Apr 2026

https://github.com/devfinwiz/leetcode-feeder

A repository designed for novice developers to make open-source contributions with just a few clicks. Get your pull request merged in under 12 hours!

algorithm-challenges competitive-coding cpp data-structures java leetcode leetcode-python python sql

Last synced: 21 Mar 2025

https://github.com/bartlomiejzuber/rapidmsgconverter

Java app for quick converting .msg files to .pdf files

java msg-converter msg-files pdf-generation

Last synced: 07 May 2025

https://github.com/rlemaigre/jminiorm

Micro-ORM and database utility for the Java language.

database java jdbc jpa orm sql

Last synced: 25 Jun 2025

https://github.com/augustomello09/pethouse

Este projeto é uma aplicação Full Stack para um E-commerce de PetShop, desenvolvida com Java, Spring Boot 3+ no backend e Angular no frontend. O objetivo é simular uma plataforma completa onde os usuários podem navegar e realizar compras de produtos para pets de maneira intuitiva e segura.

angular docker flyway java jenkins junit5 kafka postgresql s3 spring-boot

Last synced: 07 Mar 2026

https://github.com/respresso/respresso-client-android

Save development time! Respresso automatically transforms and delivers your digital assets into your projects

android android-development designer developer-tool digital-asset-management gradle java kotlin resource-management respresso synchronization translator

Last synced: 11 Jan 2026

https://github.com/web3labs/quorum-sample

Sample Token Project for Quorum

blockchain ethereum java java8 quorum web3j

Last synced: 10 May 2025

https://github.com/yupiik/tools-maven-plugin

An Apache Maven plugin set of tools.

java maven pdf site tool

Last synced: 13 Apr 2025

https://github.com/teenbiscuits/pasame-codigo

Pásame el Código es una web open source con apuntes y ejercicios resueltos de las diferentes asignaturas que componen el Grado de Enxeñería Informática da Universidade da Coruña.

apuntes astro c cc-by-nc ds ejercicios fic gei git gplv3 java ocaml pp pro1 pro2 pro2324 tailwindcss udc universidad

Last synced: 14 Aug 2025

https://github.com/virgilsecurity/virgil-e3kit-kotlin

E3Kit is a security framework that simplifies work with Virgil services and presents the easiest way to add full end-to-end security to your chat application to become HIPAA and GDPR compliant and more.

e3kit encryption encryption-for-unregistered-users end-to-end-encryption gdpr group-encryption hipaa java kotlin multi-device pki post-quantum-cryptography pqc sdk secure-the-future stream-encryption

Last synced: 09 May 2025

https://github.com/aerisweather/aerisandroidsdk

AerisWeather Android SDK Demo App

android java kotlin maps weather

Last synced: 11 Jan 2026

https://github.com/sanchithaudana/java-oop

Java Object Oriented Programming

java oop-principles oops-in-java

Last synced: 31 Aug 2025

https://github.com/yiding-he/redisfx

A JavaFX Client for Redis

client gui java javafx redis

Last synced: 27 Oct 2025

https://github.com/hms-core/hms-ads-severdemo

HMS ads java severdemo demonstrates how to use java code to invoke the restful API of the HMS Ads Kit.

ads hms huawei java sever

Last synced: 08 Aug 2025

https://github.com/sonatype/package-url-java

Java Package URL implementation

java labs package-url

Last synced: 23 Apr 2025

https://github.com/jetty-project/http2-demo

Demonstration of HTTP/2 Push using Jetty Server

http2 http2-push http2-server java java-11 jetty

Last synced: 05 Oct 2025

https://github.com/openjdk/jmc7

https://openjdk.org/projects/jmc

java jmc mission-control openjdk

Last synced: 05 Oct 2025

https://github.com/s-frei/tracksearch

Search on YouTube and/or SoundCloud for tracks and get their metadata

expose http-client java metadata-extraction music search search-interface song soundcloud stream youtube

Last synced: 22 Aug 2025

https://github.com/weasley-j/multiple-sms-spring-boot

Multiple SMS Templates & Multiple SMS Providers for spring-boot, You can easily use multiple-sms-spring-boot-starter to send SMS for users by @SMS annotation and SmsTemplat in you projects.

java sms spring-boot spring-boot-starter

Last synced: 26 Mar 2025

https://github.com/hezhii/algorithm

学习《算法》(第四版)过程中的一些笔记、练习等。

algorithm java

Last synced: 10 Aug 2025

https://github.com/cygnusv/ntrureencrypt

Prototype implementation of NTRUReEncrypt in Java

java ntru proxy-re-encryption

Last synced: 24 Apr 2025

https://github.com/leonardpepa/segaleo

Segaleo is an ordering application (Personal Digital Assistant) that exists in every room of a hotel unit. This application facilitates the delivery of room service menu items to the customer, as well as the immediate booking of activities.

delivery food gui gui-application hotel hotel-management-system hotel-ordering-app java leonard leonardpepa leonarnt pepa swing uom

Last synced: 22 Aug 2025

https://github.com/sap/ai-sdk-java

Integrate chat completion into your business applications with SAP Cloud SDK for AI. Leverage the Generative AI Hub of SAP AI Core to make use of templating, grounding, data masking, content filtering and more. Access all features of SAP AI Core with the SAP Cloud SDK for AI.

ai chat gen-ai java sap-ai-core

Last synced: 20 Feb 2026

https://github.com/arquillian/arquillian-cube-q

Fault injection and chaos testing all in one, sweet DSL.

chaos-monkey docker java jvm testing

Last synced: 20 Aug 2025

https://github.com/syncfusionexamples/ej2-document-editor-web-services

This repository contains Web API service projects for Word Processor (also known as Document Editor) component server-side dependencies in all supported platforms.

csharp document-editor java web-api web-services word-processor

Last synced: 15 Aug 2025

https://github.com/gab-studios/gab-cmdline

A GABStudios Java library to help with command line parsing.

command gab-cmdline java line parser parser-library

Last synced: 03 Oct 2025

https://github.com/anein/java-programming-solving-problems-with-software

Modules of Coursera Course "Java Programming: Solving Problems with Software"

coursera coursera-course java java-programming

Last synced: 12 Apr 2025

https://github.com/arkssss/studynotes

后端技能校招笔记整理 (包含数据结构, 算法, Java, C++, 数据库, Redis, Linux 等)

cpp git java linux mysql php rabbitmq react redis vim

Last synced: 23 Mar 2025

https://github.com/javadev/calculator

The java/swing, javascript, android calculator

calculator-java calculator-java-swing java

Last synced: 05 Oct 2025

https://github.com/marschall/jdeps-maven-plugin

maven plugin that runs the 8 jdeps tool

java jdeps maven

Last synced: 17 Aug 2025

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

Xendit REST API Client for Java - Card, Virtual Account, Invoice, Disbursement, Recurring Payments, Payout, EWallet, Balance, Retail Outlets Services

balance card disbursement ewallet hacktoberfest invoice java payment payment-gateway payout recurring-payments retail-outlet virtual-account xendit

Last synced: 01 Feb 2026

https://github.com/paarthmadan/playground

Fundamental computer science algorithms and preparation for computing contests.

algorithm breadth-first-search canadian-computing-competition ccc dijkstra java python rust

Last synced: 02 Mar 2026

https://github.com/c-akhil/java-interview-guide

A comprehensive repository for Java and Spring Boot interview preparation. This repository includes detailed questions and answers covering Core Java Concepts, OOP, Collections & Data Structures, Java 8 & Functional Programming, Spring Boot & Microservices, and Spring Boot Security & Optimization

api-development backend-development collections functional-programming interview-questions java java-interview microservices software-development spring-boot technical-interview

Last synced: 18 Apr 2026

https://github.com/oragejuice/oragehack

A minecraft injection client that uses launchwrapper

java launchwrapper minecraft minecraft-cheat

Last synced: 12 Feb 2026

https://github.com/fmjsjx/libnetty

A set of some useful libraries based on netty-4.x.

codec fastcgi http java netty redis

Last synced: 02 Apr 2026

https://github.com/hardiksinghbehl/spring-boot-apache-poi

list of reference POCs to work with excel files using apache-POI and spring-boot

apache-poi excel-reader excel-validator excel-writer java open-api-v3 spring-boot

Last synced: 04 Mar 2026

https://github.com/vimeworld/skinservice

VimeWorld.com Minecraft Skin Service

cloudflare image-api java minecraft minecraft-avatar vimeworld

Last synced: 13 Feb 2026

https://github.com/vrnsky/java-a-to-z

Java Study Project

java oop study-project

Last synced: 11 Feb 2026

https://github.com/bsayli/spring-boot-openapi-generics-clients

End-to-end generics-aware OpenAPI clients with a single canonical {data, meta} contract and RFC 9457 Problem Details — built on Spring Boot 3.5 and Java 21.

api-client code-generation generics httpclient5 java mustache-templates openapi openapi-3 openapi-3-1 openapi-generator problem-details problem-details-for-http-apis restclient spring-boot-3 springdoc swagger

Last synced: 14 Feb 2026

https://github.com/britannio/lox

A full-featured, efficient scripting language from Robert Nystrom's book: craftinginterpreters.com

bytecode-interpreter clox interpreter java jlox lox lox-interpreter lox-language recursive-descent-parser

Last synced: 17 Apr 2026

https://github.com/lowes/auditor

Solves the audit needs for any JVM based application.

audit audit-log audit-trail auditing java java-audit jvm kafka kotlin reactor spring-boot

Last synced: 13 Apr 2025

https://github.com/oussamabonnor1/jettunes_android

Android music player, still under developement and requires many improvements but works normaly.

android android-application android-studio java material-design music-player xml

Last synced: 30 Oct 2025

https://github.com/sschuberth/parandroid

The first demoscene production for the Android platform.

android demoscene java opengl

Last synced: 19 Mar 2025

https://github.com/0x4e0x650x6f/pwn4jshell

Java Web shell project

java webshell

Last synced: 11 May 2025

https://github.com/jiro4989/mvtexteditor

RPGツクールMVのテキスト編集ツール

gui java javafx utility

Last synced: 08 May 2025

https://github.com/asahaf/javacron

java library for parsing crontab expressions and calculating the next run time

cron cron-expression cronjob crontab java parser

Last synced: 11 Jan 2026

https://github.com/julxxy/multiple-sms-spring-boot

Multiple SMS Templates & Multiple SMS Providers for spring-boot, You can easily use multiple-sms-spring-boot-starter to send SMS for users by @SMS annotation and SmsTemplat in you projects.

java sms spring-boot spring-boot-starter

Last synced: 11 Jan 2026

https://github.com/sofianehamlaoui/burp-addons

Burp-Addons : Some of Burp Addons I use ( Mindak ak fahem )

burpsuite cybersecurity hacking hamlaoui jar java python sofiane sofianehamlaoui

Last synced: 08 May 2025

https://github.com/selimhorri/flight-management

Spring Boot app manages flights and their reservations

java jpa jsp spring-boot sql

Last synced: 12 Apr 2025

https://github.com/cgivre/drillbook

The Official Source Repository for Learning Apache Drill (O'Reilly, 2018)

apache-drill hadoop hbase hive java kafka python python3 sql

Last synced: 02 Apr 2026

https://github.com/AoElite/claude4j

A very simple java library to interact with Claude's API

anthropic anthropic-claude claude claude-3 claude-ai claude-api java library

Last synced: 09 May 2025

https://github.com/hebirobotics/hebicam

MATLAB utility for streaming video acquisition (h264, mjpeg, etc.)

java matlab

Last synced: 27 Feb 2026

https://github.com/keinhaar/gwtswing

This is an UI API similar to Java's Swing API, but on top of GWT.

css gwt java teavm

Last synced: 17 Mar 2026

https://github.com/fiqryq/movie

🎥 Aplikasi android sederhana menggunakan retrofit2 dan api themoviedb.

api java movie retrofit themoviedb

Last synced: 10 Oct 2025

https://github.com/usnistgov/metaschema-java

Java tools and libraries providing a Metaschema toolchain

code-generation data-binding java json maven maven-plugin metaschema modeling parser-library xml yaml

Last synced: 26 Oct 2025

https://github.com/maxim-saplin/mandelbrot

Microbenchmark testing Python, Numba, Mojo, Dart, C/gcc, Rust, Go, JavaScript, C#, Java, Kotlin, Pascal, Ruby, Haskell performance in Mandelbrot set generation

bun c csharp dart dotnet flutter gcc golang haskell java javascript kotlin mojo node nodejs numba pascal python ruby rust

Last synced: 26 Oct 2025

https://github.com/sergey-melnychuk/distributed-algorithms

Implementation of classic distributed algorithms: membership, failure detection, quorum, replication etc.

consensus distributed-hash-table distributed-systems fault-tolerance java membership peer-to-peer quorum replication

Last synced: 19 Jan 2026

https://github.com/arcticicestudio/icecore-hashids

A lightweight generator for short, unique, non-sequential and decodable Hashids from non-negative numbers.

hash hash-algorithm hash-numbers hashids icecore java library obfuscation obfuscator

Last synced: 24 Oct 2025

https://github.com/minhaskamal/resultanalysistool

A Complete Package for Processing OMR Answer Sheet

image-processing java omr-sheet result-analysis student-answer

Last synced: 16 Oct 2025

https://github.com/hidroh/numeric-edittext

A numeric EditText widget for Android

android java library

Last synced: 26 Oct 2025

https://github.com/29dch/walking-the-maze

走迷宫问题的算法可视化(UI)及迷宫生成

bfs dfs java queue recursive stack swing

Last synced: 12 Oct 2025

https://github.com/norbit4/treecuter

Cut down trees mechanic plugin to game minecraft

bukkit java jobs mc minecraft paper plugin spigot tree treecapacitator treecuter

Last synced: 04 Mar 2026

https://github.com/openzipkin/brave-cassandra

Tracing instrumentation for Cassandra and the DataStax Java Driver

cassandra distributed-tracing instrumentation java openzipkin tracing zipkin zipkin-brave

Last synced: 04 Jun 2026

https://github.com/ranjanji/crime-management-system

A simple crime management system, which stores and display data from MySQL database. It is a console based Java application.

console-application crime-management crime-management-system database-management java jdbc-driver mysql spring-tool-suite sts

Last synced: 20 Apr 2026

https://github.com/sangam14/JavaLabs

The Ultimate JavaLabs For All #java Developer

applet class example-project java objects serverlet

Last synced: 03 Mar 2026

https://github.com/meesho/excel-pojo-mapper

Excel-Pojo-Mapper is a library to map data kept in excel to list of java objects without writing boilerplate code to read excel & set values for object fields.

apache-poi converter epmapper java mapping mapping-tools microsoft-excel poi pojo

Last synced: 26 Apr 2026