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Convert and shift subtitles

Turn SRT, WebVTT or ASS subtitles into SRT or WebVTT, and move them earlier or later when they are out of step with the video.

Runs on your device. Your file is never uploaded.

How to convert and shift subtitles

  1. 1

    Choose your file

    Drop it onto the tool or pick it from your device. It is read inside this browser tab; nothing is uploaded.

  2. 2

    Set what you need

    Pick the options Convert and shift subtitles shows. The defaults are a sensible place to start.

  3. 3

    Save the result

    Download the finished file. Close the tab and nothing is left behind anywhere.

Convert and shift subtitles, asked and answered

Is my file uploaded when I use Convert and shift subtitles?

No. The whole job runs in your browser, on your device. The file never leaves it, so there is nothing on a server to keep or delete.

Is it free?

Yes: no account, no watermark, no email and no daily limit. The only limits are what your device can hold in memory.

Which browsers does it work in?

Any current Chrome, Edge, Firefox or Safari, on a computer or a phone. Very old browsers may not support every format.

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