
Description: Undertext is an open-source alternative to Grammarly. It is a grammar checker and writing assistant designed to help improve your writing style, catch grammar mistakes, and suggest improvements to make your writing clearer and more effective.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Open Subtitles FlixTools is a free open-source tool for manipulating and editing subtitles. It allows users to synchronize, convert, adjust timing, edit text and do other operations on subtitle files. Useful for correcting mistimed or improperly formatted subtitles.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API