you-tldr - Get the tldr of any YouTube video in seconds
Universal Word - Translate YouTube subtitles into multiple languages
SliceTube - The Fast and Modern way to cut and download YouTube videos
Subtitle Generator - Subtitle Generator will automatically create subtitles for your YouTube videos and translate them into other languages.
GIFit! - Quickly turn YouTube videos into GIFs (chrome extension)
Auto Subtitles by Type Studio - A fast & easy way to add auto subtitles to your video online