
Description: RiotJS is a lightweight front-end JavaScript library for building user interfaces. It uses a simple and minimal syntax to allow developers to build components quickly without needing complex build setups or transpilation.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: PrimeUI is an open source user interface component library for JavaServer Faces (JSF) and JavaServer Pages (JSP). It provides over 100 UI components to help developers rapidly create elegant, accessible, and responsive web applications. Some key components include data tables, charts, menus, overlays, messages, and dialogs.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API