Subtitle Line Breaker
Turn long captions into balanced, readable subtitle lines based on professional formatting rules.
Runs locally — your content never leaves this browser
Original
0 words · 0 characters
Result
QUICK GUIDE
How to use this tool
- Paste your content into the editor.
- Review the result generated instantly in your browser.
- Copy or download it and keep creating.
See what this tool does
Before
This is a long subtitle that is difficult to read on a small screen.
After
This is a long subtitle that is difficult to read on a small screen.
Frequently asked questions
How many characters should a subtitle line have?
A common target is 37 to 42 characters per line, including spaces. The best limit depends on platform, font size, and video format.
How many lines should a subtitle use?
Most subtitles should use one or two lines. More than two lines can cover too much of the video and become difficult to scan quickly.
Where should a subtitle line break go?
Break at natural phrase boundaries and punctuation. Avoid separating names, articles from nouns, prepositions from phrases, or leaving one short word alone.
Does this tool change subtitle timing?
No. This tool formats pasted caption text only. Use the converter or reading-speed checker when you need to work with timed SRT or VTT cues.