Free browser utility
SRT Renumber and Repair Tool
Paste damaged SRT content to rebuild valid cue blocks while keeping timestamps and text.
✓ Local processing✓ No registration✓ No file upload
Loading tool…
Before
Missing or duplicated cue numbers
→
After
Sequential SRT cue numbering
How to use SRT Renumber and Repair Tool
- Paste text or select local files in the tool area.
- Choose any options that match the source data.
- Run the conversion or repair and review the preview.
- Copy the result or download the generated file.
Privacy and local processing
This project performs processing, document generation or calculations in your browser. The page does not include an upload endpoint, analytics script or remote processing API call. Avoid pasting sensitive data into websites you do not control.
Frequently asked questions
Will invalid cues be deleted?
Blocks without a recognizable timestamp are skipped and reported in the result summary.
Does it change subtitle wording?
No. It only repairs block structure, numbering and timestamp punctuation.