Skip to content
ToolsOnDuty - free online tools
Social Media

YouTube Transcript to Captions Formatter

Turn manually prepared transcript lines into estimated SRT or WebVTT cues using adjustable reading-speed and line-length settings.

Free browser toolRuns in your browserNo sign-up

Estimated timing

4 caption cues

This does not listen to or transcribe audio. Generated timings are estimates that must be aligned with the final video.

Transcript lines

4

Estimated end

00:00:12,071

Output

SRT

00:00:00,000 → 00:00:02,412

Clear captions make tutorials easier to follow.

00:00:02,612 → 00:00:05,141

Start with one spoken idea on each transcript line.

00:00:05,341 → 00:00:08,518

Then review every generated timestamp against the final video.

00:00:08,718 → 00:00:12,071

Export the result only after correcting names and technical terms.

One input line becomes one cue. Correct speaker names, punctuation, sound descriptions and synchronization in a caption editor or YouTube Studio before publishing.

About the YouTube Transcript to Captions Formatter

YouTube Transcript to Captions Formatter converts each non-empty transcript line into one timed cue. Choose SubRip or WebVTT output, then control the starting time, cue gap, minimum cue duration, reading-speed assumption and maximum characters per line.

Cue duration is estimated from the visible character count and selected characters-per-second value. Long lines are wrapped without changing the words, and the result can be copied or downloaded.

The tool does not listen to, upload or transcribe audio. Generated timestamps are estimates that must be synchronized with the final edit, and names, punctuation and sound descriptions require human review.

Key features

  • One transcript line per caption cue
  • SRT and WebVTT output
  • Adjustable starting time and cue gap
  • Minimum-duration guard
  • Characters-per-second timing estimate
  • Automatic line wrapping
  • Cue-by-cue timing preview
  • Copy and local file download

How to use

  1. 1Prepare an accurate transcript with one intended caption cue per line.
  2. 2Choose SRT or WebVTT and set the timing and line-length assumptions.
  3. 3Review the estimated timestamps and wrapped text in the cue preview.
  4. 4Download the file, synchronize it with the final video and correct language details before publishing.

Examples

Format a four-line tutorial transcript
Input: Four corrected transcript lines, 17 characters per second and 0.2-second gaps
Output: Estimated SRT cues with wrapped lines and sequential timestamps

Synchronize every cue against the finished tutorial before upload.

Frequently asked questions

Does this transcribe a video or audio file?
No. It formats transcript lines you provide and does not open or upload media.
Are the generated timestamps exact?
No. They are reading-speed estimates and must be aligned with the final spoken audio.
How is cue duration calculated?
The tool divides visible characters by the selected characters-per-second value and applies the chosen minimum duration.
Can it create both SRT and WebVTT?
Yes. Switch the output format before copying or downloading the generated cues.

Open a related tool to prepare your files or refine the finished result.