Free and Open, Distributed, RESTful Search Engine

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

Spring Boot

A browser automation framework and ecosystem.

Open Source Identity and Access Management For Modern Applications and Services

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

Open-source IoT Platform - Device management, data collection, processing and visualization.