VTT

VTT (Web Video Text Tracks) is a file format that is used to encode subtitles for web-based video content.

VTT files are typically used to provide subtitles for streaming video content that is accessed through a web browser, and they are supported by most modern web browsers.

Like SRT files, VTT files contain the text of the subtitles, as well as timestamps indicating when each subtitle should be displayed and for how long.

Once the VTT file has been created, it can be associated with a web-based video using the HTML5 <track> element or a JavaScript library.