Caption formatting utility
Subtitle Line Break Optimizer
Create more consistent caption line lengths without touching timestamps. The optimizer wraps text at word boundaries using your selected maximum, giving you a clean draft for final editorial review.
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Tool workspace
No account required · processed locally
Many teams review between 32 and 42 characters per line.
Three steps
How this tool works
- 1
Add the SRT captions you want to format.
- 2
Choose the maximum line length.
- 3
Review and download the rewrapped SRT.
Useful for
Common workflows
- Vertical-video captions
- Subtitle style consistency
- Preparing text for smaller screens
What it checks
Focused, transparent output
- Word-boundary wrapping
- Timestamp preservation
- Configurable line length
Questions
Frequently asked questions
Does the optimizer understand sentence meaning?
It wraps at word boundaries by length; an editor should still review phrasing and natural-language breaks.
Will timing change?
No. Cue start and end timestamps remain unchanged.
Can a single long word exceed the limit?
Yes. Words are not split, which avoids introducing unnatural hyphenation.