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Zyn Tools · Free

Auto Captions

Upload a video or audio (or paste a YouTube link) and get timed subtitles as SRT and VTT.

Your details 5 of 5 free uses left today

Video or audio
Caption language
Style

Your file is only used to make the captions and is not stored.

Results

A caption preview, SRT + VTT downloads
and the transcript will show here.

About Auto Captions

Zyn Auto Captions turns speech in your video or audio into timed subtitles. Upload a file (up to 20 MB free) or paste a public YouTube link, choose English, Hindi (Devanagari) or Hinglish (Hindi in Roman letters), and optionally add an English translation. You get an SRT and a VTT file that work on YouTube, Instagram, Premiere Pro, CapCut and most video players, a plain transcript to copy, and a preview of the captions on your own video before you download. Every SRT file is checked on our server for correct numbering and timing.

How it works

  1. Upload a video or audio file, or paste a YouTube link.
  2. Pick the caption language and style; add an English translation if you want.
  3. Preview the captions, then download SRT / VTT or copy the transcript.

Free to use with a daily limit. Measured data is shown separately from AI suggestions, and AI scores are labelled as estimates.

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