Can I shift subtitles by a fractional second?

Yes. Type a decimal like -0.5 or 2.3 in the shift field, or use the chevron buttons for ±0.1s steps. The output uses millisecond precision (HH:MM:SS,mmm).

What does 'Fix overlaps' do?

It clips each entry's end time so it doesn't overlap the next entry's start, leaving a 1ms gap. This is what most players expect — overlapping subtitles can render on top of each other.

Why are my edits not appearing in the output?

Inline start/end edits must be in the HH:MM:SS,mmm format (e.g. 00:00:04,500). If the format is invalid we keep the original timing rather than guessing.

Can I undo an entry removal?

Yes — removed rows stay visible at 40% opacity with a Restore button. Click it to bring the entry back.

Content Creator Tools

Subtitle Timing Editor

Paste an SRT subtitle file or upload one from disk, then shift all timings by ±N seconds, fix overlapping entries, renumber after removals, and edit any entry inline. Export the modified SRT with one click — all in your browser, no uploads.

Your input is processed locally in your browser. It is not uploaded to Dueneo.

Loading Subtitle Timing Editor…

How to use

1
Load your SRT file
Either drop an .srt file into the upload zone or paste the content directly. The parser handles BOMs, CRLF line endings and missing index lines.
2
Shift all timings
Use the +/- buttons to nudge every entry by 1s or 0.1s, or type an exact decimal value. Negative values shift backwards; times clamp at 0.
3
Fix overlaps and renumber
Click Fix overlaps to clip each entry's end to the next entry's start. Renumber is always applied to the output so indices stay sequential after removals.
4
Edit or remove individual entries
Edit timings and text inline in the table. Click the trash icon to remove an entry — it disappears from the output but you can restore it from the removed row.
5
Export the modified SRT
Click Copy to grab the output, or Save .srt to download it as a file with the original name plus '-edited'.

Common use cases

Sync subtitles that are a few seconds early or late.
Fix SRT files where automatic transcription has overlapping entries.
Strip sponsor segments by removing the relevant entries.
Edit typo-riddled auto-generated subtitles in place.

Limitations

Only the SRT format is supported (WebVTT .vtt files need their WEBVTT header removed and their . decimal separators converted to , first).
Inline edits to start/end times accept only the HH:MM:SS,mmm format. Invalid edits are silently ignored in the output.
The maximum file size is 1 MB. Larger files would block the main thread — split them first.
Style tags (<i>, <b>) and positioning are preserved as-is in the text but not validated.

Frequently asked questions

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Loading Subtitle Timing Editor…

How to use

Load your SRT file

Either drop an .srt file into the upload zone or paste the content directly. The parser handles BOMs, CRLF line endings and missing index lines.

Shift all timings

Use the +/- buttons to nudge every entry by 1s or 0.1s, or type an exact decimal value. Negative values shift backwards; times clamp at 0.

Fix overlaps and renumber

Click Fix overlaps to clip each entry's end to the next entry's start. Renumber is always applied to the output so indices stay sequential after removals.

Edit or remove individual entries

Edit timings and text inline in the table. Click the trash icon to remove an entry — it disappears from the output but you can restore it from the removed row.

Export the modified SRT

Click Copy to grab the output, or Save .srt to download it as a file with the original name plus '-edited'.

Limitations

Only the SRT format is supported (WebVTT .vtt files need their WEBVTT header removed and their . decimal separators converted to , first).
Inline edits to start/end times accept only the HH:MM:SS,mmm format. Invalid edits are silently ignored in the output.
The maximum file size is 1 MB. Larger files would block the main thread — split them first.
Style tags (<i>, <b>) and positioning are preserved as-is in the text but not validated.