Subtitle Merger
Drop two subtitle files — they're combined into one timeline, sorted by start time and renumbered. Output uses the first file's format.
File A: drop .srt/.vtt here, or click
File B: drop .srt/.vtt here, or click
Paste or drop both subtitle files to merge.
When is this useful?
Combining dialogue with a separate signs/lyrics track, joining two halves of a film, or building a bilingual subtitle by merging two languages into one timeline.
How are conflicts handled?
Cues are sorted by start time and renumbered. Overlapping cues are kept as-is — most players display simultaneous cues stacked.
Is anything uploaded?
No. Everything runs in your browser; your files never leave your device.