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Subtitle Renumbering Tool
Sort the cues of an SRT or VTT file by start time and number them again from one.
Subtitle Renumbering Tool: TOEA orders every cue by its start time, then writes the file back with sequence numbers running from one with no gaps or repeats, in the format it arrived in. Runs 100% locally in your browser with zero server file uploads.
- Category
- YouTube tools
- Runs
- In your browser
- Cost
- Free · no sign-up
- Availability
- Ready to use
Runs entirely in your browser
SRT or VTT · up to 5 MB, or paste below
The shape a SubRip file must have
Each cue is a number on its own line, a timing line such as 00:01:02,500 --> 00:01:04,000, one or more lines of text, and then a blank line. Hand editing breaks this in predictable ways: a missing blank line merges two cues, a deleted cue leaves a gap in the numbering, and a pasted block repeats numbers or lands out of order. Renumbering fixes the numbers and order; the blank lines are written correctly in the output.
When the order was wrong
If the result reports moved cues, look at them: a cue out of order is sometimes a typing mistake in its timing, such as 01: for 00: in the hour field, which sorting would place an hour later. Check the moved cues' times before trusting the new order. Files that are joined together are already sorted and numbered by the subtitle merger, so they do not need this step.
How to use it
- Choose a subtitle file or paste its text.
- Check how many cues moved or were renumbered.
- Download the corrected file.
Privacy & limitations
The file is read and rewritten in your browser and never uploaded. Timings and text are untouched; only the order and the numbers change.
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Frequently asked questions
Why do the numbers matter?
Some players and editors refuse a SubRip file whose sequence numbers repeat, skip, or run backwards, or silently stop at the first bad one. Deleting or inserting cues in a text editor is the usual cause.
Will it reorder my cues?
Only if they are out of start-time order. A cue that appears in the file after one that plays later is moved to its proper place, and the result above the file tells you how many moved.
Does it work on VTT files?
Yes. WebVTT cues do not need numbers, but they are written in order and numbered anyway, which every player accepts.
Two cues have the same start time. Which comes first?
The one that ends first. Cues with identical start and end times keep the order they had in the file.
Free tool · runs in your browser · no account required