Developer

SRT subtitle editor

Edit and resync your .srt subtitles.

  • Instant
  • Free
  • Private (processed locally)
  • No sign-up
Global shift milliseconds (+/−)

ℹ️ Edit the text and timing of each subtitle, shift everything if the audio is out of sync, then export a clean .srt file. Time format: HH:MM:SS,mmm. 100% local.

Edit the subtitles

Paste your .srt and load it: edit each cue, adjust the timings, shift everything if needed, then export.

Shift example

BeforeShiftAfter
00:00:01,000+1000 ms00:00:02,000
00:00:04,000+1000 ms00:00:05,000

No data sent. 100% local.

Frequently asked questions

What is the time format?

HH:MM:SS,mmm (hours, minutes, seconds, milliseconds), as in the SRT standard.

How to fix an offset?

Enter a shift in milliseconds (positive or negative) then “Shift all”.

Is my file sent?

No, everything is processed locally. Nothing is uploaded.