All Algorithms implemented in Java

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

a fast, scalable, multi-language and extensible build system

Redisson - Valkey & Redis Java client. Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queue,…

Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

Git Server with CI/CD, Kanban, and Packages. Seamless integration. Unparalleled experience.

Style and Grammar Checker for 25+ Languages

Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.

OpenRefine is a free, open source power tool for working with messy data and improving it

The Metadata Platform for your Data and AI Stack

LangChain4j is an open-source Java library that simplifies the integration of LLMs into Java applications through a unified API, providing access to popular LLMs and vector databases. It makes impl…

Apereo CAS - Identity & Single Sign On for all earthlings and beyond.

Test Automation Made Simple

Apache ShenYu is a Java native API Gateway for service proxy, protocol conversion and API governance.

A damn simple library for building production-ready RESTful web services.

📌 a missing Java std lib(simple & 0-dependency) for framework/middleware, provide an enhanced InheritableThreadLocal that transmits values between threads even using thread pooling components.

An annotation processor for generating type-safe bean mappers

Digital logic design tool and simulator

A comprehensive Domain-Driven Design example with problem space strategic analysis and various tactical patterns.

SuperSonic is the next-generation AI+BI platform that unifies Chat BI (powered by LLM) and Headless BI (powered by semantic layer) paradigms.

OpenAI Api Client in Java

Java bytecode engineering toolkit

Java implementation of the Tron whitepaper

High performance non-blocking webserver

LibRec: A Leading Java Library for Recommender Systems, see

A Java library for technical analysis.

Java implementation of RSocket

Eclipse Paho Java MQTT client library. Paho is an Eclipse IoT project.