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SRT & VTT Subtitle Converter

Convert subtitle files for YouTube, X and video editors. Upload or paste SRT/VTT, shift the whole timeline by seconds, convert between formats, or extract a clean transcript. Your subtitle file is processed locally in your browser.

🔒 100% private — files never leave your browser

Use a negative value to move captions earlier.

How to use the Subtitle Converter

  1. 1 Paste subtitle content or open an .srt/.vtt file.
  2. 2 Choose SRT, VTT or plain text, and optionally shift the timing in seconds.
  3. 3 Convert, copy the result, or download the new subtitle file.

Frequently asked questions

Can I convert SRT to VTT for YouTube?

Yes. Choose VTT and the tool adds the WebVTT header and converts comma milliseconds to the VTT dot format. YouTube also supports SRT directly, so use the format your workflow needs.

Can it fix subtitles that are out of sync?

Yes. Enter a positive number to move every cue later or a negative number to move them earlier. The shift is applied locally to every start and end time.

Does it upload my subtitles?

No. The file is read and converted in your browser. Nothing is sent to a server.

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