
Description: Matter Reader is an open source ebook reader, converter, and manager that supports a wide variety of ebook formats. It is a free, cross-platform alternative to proprietary ebook readers.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Raindrop.io is a free online bookmark and link manager. It allows you to save, organize and manage your bookmarks, links and web content in one place across all your devices. Key features include tagging, search, Chrome/Firefox extensions and apps.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API