mtools.lol

Subtitle Converter

Convert subtitles between SRT, VTT, ASS and SBV, and shift their timing.

How it works

  1. 1Paste subtitles or open a file.
  2. 2Choose the format and shift the timing if needed.
  3. 3Copy or download the result.

Features

  • Reads SRT, WebVTT, ASS/SSA and SBV.
  • Italic and bold kept where the format allows.
  • Shift every line earlier or later.
  • Private: runs in your browser; nothing is uploaded.

Frequently asked questions

My subtitles are out of sync.

Enter how many seconds to move them, negative for earlier.

Which format does YouTube want?

YouTube accepts SRT, VTT and SBV.