SRT Subtitle Line Length Checker

Spot captions that are too dense for small screens.

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Sample inputs
Max characters per caption line: 42
SRT subtitles:
1
00:00:01,000 --> 00:00:04,000
Caption text...

Generated result
Summary: 1 caption checked. No issues found.

Stats
- Captions: 1
- Max Line Length: 42

Issues
- No issues found.

Output
Captions checked: 1
Line length limit: 42

• SRT block shape

  Caption numbers, timestamp rows, and text blocks are parsed in the common SRT layout.

• Line length limit

  Each subtitle text line is compared with the selected character limit, defaulting to 42 characters.

• Dense captions

  Captions with more than two text lines are flagged for readability review.

• Timestamp format

  Timestamp rows are checked for the HH:MM:SS,mmm to HH:MM:SS,mmm pattern.

• Review-only output

  The tool reports readability issues but does not automatically split or retime captions.