SRT to VTT Subtitle Converter
Convert captions between SRT and VTT, and shift every timestamp at once when the whole file runs early or late.
Positive delays the captions, negative pulls them earlier.
Your file is read and converted by your own browser. Nothing is uploaded.
A note on downloading other people's transcripts
This tool works on caption files you already have: exports from your editor, files downloaded from your own YouTube Studio, or captions a transcriptionist sent you. It does not pull captions off other people's videos, and that is deliberate.
YouTube closed public access to caption text some time ago, so any site still offering to fetch a stranger's transcript is either scraping around the block or quietly failing. On top of that, a video's script belongs to the creator who wrote it.
To get your own captions, open YouTube Studio, go to Subtitles, choose the video, and use the download option next to the published track. Bring that file here to convert or re-time it.
Frequently asked questions
What is the difference between SRT and VTT?+
They store the same thing in slightly different syntax. VTT starts with a WEBVTT header and uses a full stop in the timecode; SRT uses a comma and no header. VTT is the format HTML5 video players expect, SRT is what most editing software exports.
Which format does YouTube accept?+
Both. YouTube takes SRT, VTT and several others when you upload captions in Studio. VTT is the safer choice if the same file also has to work in a web player on your own site.
My captions are out of sync. Can this fix it?+
If the whole file drifts by a constant amount, yes. Enter the offset in seconds, positive to delay the captions, negative to pull them earlier, and every timestamp moves together. Drift that grows through the video is a frame rate mismatch and needs re-timing instead.
Is my file uploaded to a server?+
No. The file is read and converted by your browser, so the contents never leave your device. That matters when captions carry the full script of unreleased work.
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