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Fix SRT and VTT formatting
Repair sequence numbering, mixed time separators, spacing and extra blank lines in an existing subtitle file. Missing dialogue and damaged time ranges are not guessed.
Ready. Nothing uploaded.
Keep your original file. Structural checks do not guarantee audio synchronization or speech accuracy.
Safe changes
The fixer renumbers SRT cues from 1, normalizes line breaks and rewrites valid time values in the selected format. Text and interval boundaries are preserved.
What cannot be auto-repaired?
Missing arrows, invalid times, reversed ranges and advanced VTT styling require review. The tool stops rather than inventing or silently dropping content.
Proofread before publishing
Overlapping cues are reported, not automatically rearranged. Compare critical captions with the original recording.
Frequently asked questions
Does this fix speech recognition errors?
No. It fixes structural text-file formatting, not misheard words.
Will overlaps be moved automatically?
No. You receive a warning because the correct timing cannot be guessed.
Can I repair WebVTT?
Yes, for standard cue blocks without NOTE, STYLE or REGION blocks.
Need new captions from speech?
Generate SRT subtitles from video/audio with LongScribe, then choose a converter, validator or timing repair tool for the downloaded file.