
Description: HTCSJS is an open-source Javascript library that allows developers to write HTML, CSS and Javascript code together in one .htcsjs file. It processes the code and separates the different languages into the proper files.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: CodeSandbox is an online code editor and prototype tool that allows developers to easily create web applications. It supports popular frameworks like React, Vue, Angular, and more. CodeSandbox provides a convenient integrated development environment for building front-end projects.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API