
Description: ESNext Bin is an online code playground that allows you to easily test JavaScript code compatible with the latest ECMAScript standards. It provides a browser-based editor and console to run ES6/ES7 code.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

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: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API