I built a caption editor that keeps video processing in the browser

<p>I’m the maker of <a href="https://karaokecaptions.com/" rel="noopener noreferrer">Karaoke Captions</a>, a browser editor for animated, word-by-word video captions. Its main design constraint is simple: the source video stays on your device for transcription and rendering.</p> <p>Here is the workflow and the browser technology behind it.</p> <h2> From a clip to a captioned MP4 </h2> <ol> <li>Ope

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