Make captions for a video in your browser. Speech recognition (OpenAI's Whisper) runs on your own computer, so your video is never uploaded anywhere. Edit the result, then download it as SRT or WebVTT.
Drop a video or audio file here, or .
Already have captions? Drop the video and an .srt or .vtt file together to check and edit them.
The first run downloads the speech model once (about 100 to 300 MB). After that it is stored in your browser and works offline. Works best on a laptop in Chrome or Edge.
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Found a problem or want a feature? Tell me on GitHub.
Built with Transformers.js. The same caption rules are in autocaptions, my command line version.