jHipster - JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures.
Vaadin Framework - Vaadin is a web application framework for Rich Internet Applications (RIA).
CUBA.platform - A Full Stack Enterprise Java Framework with lots of out of the box functionality and amazing...
CheerpJ - The complete Java runtime for modern browsers. CheerpJ is the only solution that can run any large-scale, unmodified Java applications, applets, or libraries in the browser. No downloads or plugins are required.
Open As App - Automatically create a business app from a spreadsheet, no coding.
Puter - Puter is a cloud operating system. Store, open, and edit your files from anywhere at any time in the cloud.