Fix Subtitle Numbering

Renumber SRT cues sequentially from 1 — fixes missing, duplicate or reversed cue numbers.

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How it works

  1. 1

    Paste your SRT content

    Even with missing, duplicate or reversed cue numbers.

  2. 2

    Renumbered instantly

    Cues are renumbered sequentially from 1, in the order they appear.

  3. 3

    Copy or download

    Get a clean .srt with no gaps or duplicate numbers.

FAQ

Does this fix the timestamps too?
No — only the cue numbers are renumbered; timing and text are left exactly as entered.
Does this tool upload my subtitle file anywhere?
No — the fix happens entirely in your browser.

Tool4U.net — every tool runs in your browser. No file ever leaves your device unless the tool says so.