Subtitle line splitter
— two-line max, every cue.
Reflow oversize subtitle lines to fit Netflix's 42-character standard, BBC's 37-character cap, or a custom max. Two-line cues balance automatically.
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Frequently asked
Why does subtitle line length matter?+
Long single-line subtitles force the viewer's eye to track too far across the screen, which slows reading and breaks immersion. Broadcast standards cap at 37–42 characters per line for exactly this reason. Short-form social bends the rule, but never past two lines.
What's the right max-chars-per-line for my platform?+
Netflix and Amazon: 42. BBC and most European broadcasters: 37. TikTok / Reels / Shorts: ~28 if you want big captions that fill the safe area. Pick the preset that matches where you're publishing.
Will this break the timing of my cues?+
No — only the text inside each cue is reflowed. Start and end timestamps are preserved exactly.
How does the two-line balancing work?+
When a cue fits in two lines, the splitter picks the word boundary that makes the two lines closest in length. This avoids the common ugly split where the second line is a single word.
What if a single word is longer than the max?+
It stays on its own line. The splitter never breaks a word in the middle.
Can I split into three lines?+
Yes — the max-lines toggle goes up to 3, but two is the practical and accessibility-recommended limit. Three-line cues read as a wall of text and viewers scroll past.