Generate Subtitles
Write the subtitles from the speech in a recording, on your own machine.
- Add
- Adjust
- Make
- Keep
Automatic subtitle generation needs a speech-recognition model that is not available in this build. You can write or convert subtitle files with the Subtitles tools.
Subtitle Converter & ResyncHow to use this tool
- Add the video or audio recording you want captioned. It stays on your device.
- Choose the output: SRT for video players and editors, WebVTT for a web page, or plain text with no timings.
- Press “Write subtitles”, then check the timings in Subtitle Converter & Resync before you publish them.
About this tool
Write the subtitles from the speech in a recording, on your own machine. Free and unlimited, and nothing is uploaded: it all runs in your own browser. Recognition runs entirely on your device — nothing is uploaded to any server, and the result is generated locally before downloading straight from your browser.
Privacy & limitations
Speech recognition does not run in the browser yet, so this tool cannot write subtitles today. To caption a video now, write an .srt file yourself and add it with Burn In Subtitles, or fix an existing file with Subtitle Converter & Resync. When it arrives, recognition will need a one-time download of an on-device speech model. Your recording will still never be uploaded.
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