DeveloperSpace
A JavaScript implementation of the WebVTT specification
Accessible HTML5 Video Player
Convert WebVTT files to SubRip SRT
Encoding-aware .srt (SubRip Text) to .vtt (WebVTT) converter.
Transform stream that converts srt files to vtt files (html5 video subtitles)
Very basic Node.js/JavaScript library to generate VTT open subtitles files
HTML5 polyfill for closed captioning with the element, and implements the WHATWG Timed Text Track specification.
A parser and serializer to make it easier to manipulate .vtt files.
Converts elex data (to vtt or plain text) to be integrated into live video HTML5 text track, with video js or similar for live streaming, for instance with video js captions plugin for roll-on mode
Closed captioning sample app
Builder for captions and subtitles in WebVTT format