
Description: RefCanvas is a free, open-source collaborative whiteboard web application. It allows multiple users to draw, write, and share ideas on an online canvas in real-time. Features include drawing tools, text tools, image uploads, and reporting.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: PureRef is a free, lightweight application for Windows that helps artists and designers quickly view visual references without cluttering their workspace. It's useful for keeping photos, drawings, webpages, etc. easily accessible while working on graphics, illustrations, presentations, documents, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API