
Description: JavaScript Playground is an online code editor that allows you to write, run, and test JavaScript code easily in the browser. It has a clean interface with various code examples and challenges to help you learn JavaScript interactively.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Code.org is a nonprofit dedicated to expanding access to computer science in schools and increasing participation by women and underrepresented minorities. Their free online curriculum and lessons help teach students coding and computer science fundamentals.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API