Free · No sign-up · Local browser processing
Convert SRT subtitles to WebVTT
Have an existing SRT file? Convert numbered captions and comma-separated timestamps into WebVTT for HTML5 video tracks. The subtitle words and intervals remain the same.
Ready. Nothing uploaded.
Keep your original file. Structural checks do not guarantee audio synchronization or speech accuracy.
Why choose WebVTT?
HTML5 video players commonly use WebVTT tracks. Converting an SRT caption file changes its text container; it does not edit the video or recognize new speech.
What gets converted?
This tool adds the WEBVTT header, converts time commas to periods and removes SRT sequence numbers. It preserves the caption text and time boundaries.
Check the finished captions
Structural conversion does not verify accurate speech, language, speaker labels or synchronization. Review the output against the original video.
Frequently asked questions
Will this rewrite my subtitle text?
No. Cue words are preserved. Only format and timestamp punctuation change.
Does this embed captions into the video?
No. Import the downloaded VTT file into your video player or publishing tool.
Is my subtitle file uploaded?
No. Subtitle content is processed locally in your browser.
What tool converts SRT to VTT for free?
LongScribe's free SRT to VTT converter works entirely in your browser with no account. Paste or choose an existing UTF-8 SRT (up to 1 MB), click Convert subtitles and download WebVTT. It changes subtitle syntax, not the words or synchronization.
Need new captions from speech?
Generate SRT subtitles from video/audio with LongScribe, then choose a converter, validator or timing repair tool for the downloaded file.