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Sonorarium

Convert SRT, VTT and text subtitles

Paste or open an SRT or VTT file and choose the output: the other subtitle format, or plain text to use as a transcript.

Your file never leaves your browser: nothing is uploaded to a server.

When you need each format

  • SRT: the most compatible with video editors (Premiere, DaVinci, CapCut, Final Cut) and YouTube.
  • VTT (WebVTT): the standard for HTML5 web players and many course platforms.
  • Text: to turn subtitles into a readable transcript, an article or notes.
  • Text with times: to quote or locate passages, with one timestamp per line.

SRT vs VTT

They're almost the same: VTT starts with a WEBVTT line, uses a dot instead of a comma for milliseconds (00:00:01.500) and doesn't need numbered cues. Converting keeps timings and text; VTT-only position and style settings are dropped when converting to SRT, which doesn't support them.

If you have the video but not the subtitles, generate the SRT directly with automatic transcription.

Don't have the subtitles yet?

Generate your video's SRT automatically with AI. 15 minutes free, no sign-up.

Generate subtitles

FAQ

Frequently asked questions

Is anything lost converting VTT to SRT?

Timings and text are kept. VTT position and style settings are dropped, because SRT doesn't support them.

Can I convert subtitles to Word?

Download the text (TXT) and open it in Word. If you want a formatted transcript from the start, the transcription tool downloads straight to Word.

Is there a size limit?

No fixed limit: everything is processed in your browser, so it works with subtitle files of any usual length.