
Description: Plunker is an online community for creating, collaborating on and sharing web development projects. It provides an online code editor and preview that allows developers to easily build web apps, web sites, JavaScript apps, etc. without any setup or hosting required.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: jsFiddle is an online code editor that allows users to create, edit, debug and share HTML, CSS and JavaScript code snippets. It's useful for testing code, sharing examples, and prototyping web apps quickly.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API