
Description: Backbone.js is a lightweight JavaScript library that provides structure and organization for web applications. It helps manage data and user interfaces in a scalable and maintainable way.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Agility.js is an open-source JavaScript framework for building reactive web applications. It makes it easy to manage state and handle asynchronous operations, while providing features like routing and data fetching out of the box.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API