
Description: Subler is a free, open-source macOS application for editing metadata, subtitle tracks, and chapter markers in MP4 and M4V video files. It provides an easy-to-use interface for manipulating subtitle tracks, adding or editing metadata like titles and descriptions, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: FFmpeg is a free and open-source software for recording, converting and streaming audio and video. It provides command line tools for transcoding, slicing, analyzing and manipulating digital media files in various formats.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API