Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
OpenXava - OpenXava is a Web Java Framework for Rapid Development of Enterprise Applications.
Supabase - An open source Firebase alternative
jHipster - JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures.
neo4j - Meet Neo4j: The graph database platform powering today's mission-critical enterprise applications, including artificial intelligence, fraud detection and recommendations.
Spring Framework - The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications - on any kind of deployment platform.