
Description: GWT (Google Web Toolkit) is an open-source Java software development framework for building complex browser-based applications. It allows developers to write client-side applications in Java that get compiled to JavaScript for execution in the browser.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: The Vaadin Framework is a Java framework for building modern web applications. It provides components and tools to create interactive web UIs and follow web development best practices.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API