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THE FEUTEX TOOLKIT

SRT Subtitle Time Shifter

Shift SRT subtitle timestamps forward or backward by a fixed number of milliseconds.

Audio and Video workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaNew timestamp = old timestamp + offset

How to use this tool

  1. Load the example or enter your own values in the labeled fields.
  2. Run the tool and review the result and assumptions.
  3. Copy or download the result for your workflow.

Try this example

{"offset": 1500, "srt": "1\n00:00:01,000 --> 00:00:02,500\nHello world\n"}

Accuracy and scope

Negative resulting timestamps are rejected; this does not translate or retime dialogue automatically.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.