YouTube Subtitle Checker and Converter

Runs in your browser. Your captions are not uploaded.

Captions

Paste an SRT, WebVTT or SBV file. The format is found automatically.

Or open a caption file

.srt, .vtt or .sbv. It is read on your device.

Convert to

SRT WebVTT SBV

Shift times

From cue

Seconds to move the captions: minus for earlier, plus for later. Leave "From cue" blank to move them all.

Leave out empty cues Put cues in time order

The converted file is saved as UTF-8 with the right extension. YouTube Help suggests SRT or SBV for beginners.

Free YouTube Subtitle Checker and Converter. Runs in your browser, no sign-up. Open the full tool on DigitalSnot →