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Subtitle utility

Fix SRT Timestamps

Fix malformed SRT timestamps online by parsing cues, converting dot timing to commas, and exporting clean SubRip timing.

Free No signup Browser-local

SRT input

No signup. No server upload. Browser-only processing.

Drop a subtitle file here or choose one manually

Supports SRT, VTT, and ASS where relevant to the tool.

Selected file: sample.srt

Fixed SRT output

Runs locally in your browser

Selected file: sample.srt

Workflow notes

How to use this Fix SRT timestamps tool

Use this when an SRT file has dot timestamps, inconsistent arrow spacing, missing cue numbers, or upload errors caused by malformed timing lines. The output rebuilds cue numbers and comma-based timestamps in standard SubRip style.

  1. Add a supported subtitle file. Upload or paste a supported subtitle file (.srt, .txt), or load the sample input to see the expected structure.
  2. Run the Fix SRT timestamps tool. Use the browser-based converter or repair action to process the subtitle file locally on your device.
  3. Review and download the output. Check the first few cues, the middle of the file, and the final cue before copying or downloading the result.

Input and output checklist

  • Use a complete subtitle file with valid cue timing when possible.
  • Keep a copy of the original file before replacing it in your workflow.
  • Review the first few cues, the middle of the file, and the final cue after export.
  • Test the downloaded output in the destination player, editor, or upload form.

Common mistakes to avoid

  • Expecting automatic repair for timing lines that cannot be parsed at all.
  • Using timestamp normalization to fix subtitle sync drift.
  • Not checking whether any cues were dropped because they were malformed.

All processing runs in your browser, so the subtitle or video file does not need to be uploaded to a server. That is useful for client review files, unreleased videos, internal training material, and other caption workflows where the text should stay on your device.

When to use this tool

Use this free SRT timestamp fixer when an upload fails because timing lines use dots, inconsistent arrows, bad spacing, or broken cue numbers.

  • Repair malformed SRT timestamp lines before upload.
  • Convert dot-based milliseconds back to comma-based SRT timing.
  • Fix spacing around SRT timestamp arrows.
  • Rebuild sequential cue numbers from parseable cue blocks.

FAQ

Is this SRT timestamp fixer free? +

Yes. You can fix parseable SRT timestamp formatting for free in your browser without signup or upload.

Can this fix every broken SRT file? +

No. It can normalize parseable cue blocks. Severely damaged timing lines may still need manual repair.

Can it fix dot timestamps in an SRT file? +

Yes. If the cue line can be parsed, the output converts dot-based milliseconds into comma-based SRT timestamps.

Can this help when an SRT upload fails? +

Yes. It is useful when the upload error comes from malformed timing lines, wrong separators, arrow spacing, or cue numbering.

Does this preserve subtitle text? +

Yes. It keeps parsed subtitle text and exports clean SRT timing.

Will cue numbers be rebuilt? +

Yes. The output uses sequential SRT cue numbers.

Are my SRT files uploaded to a server? +

No. Timestamp fixing runs locally in your browser, so your subtitle file stays on your device.