SRT to VTT Converter
Convert SRT subtitle text into WebVTT format for HTML5 video players, docs, and web publishing.
Use this converter when a web player needs WebVTT but your subtitle file is in SRT format.
It is a local text transformation and does not upload subtitle content.
Standard SRT
Use numbered cues with HH:MM:SS,mmm timestamps.
UTF-8 text
Paste clean subtitle text to avoid hidden encoding issues.
Manual review
Review custom styling, speaker labels, and multiline cues after conversion.
Example
00:00:01,000 becomes 00:00:01.000 in WebVTT output.
Assumption
The input follows common SubRip SRT formatting.
Limitation
Advanced WebVTT metadata, regions, and styling still need manual QA.
HTML5 video
Prepare captions for track elements.
Course platforms
Convert downloaded or edited captions.
Docs
Create caption examples for web docs.
Localization QA
Convert subtitle drafts for browser preview.
What changes when converting SRT to VTT?
The tool adds a WEBVTT header, removes simple numeric cue counters, and converts comma milliseconds to dot milliseconds.
Does this validate every WebVTT rule?
No. It handles common SRT files and produces practical WebVTT output, but complex styling should be reviewed manually.
Is subtitle text uploaded?
No. Conversion runs locally in the browser.
Can I shift subtitle timing too?
Yes. Use the Subtitle Time Shifter before or after conversion.
Suggested workflow
Web subtitle workflow
Shift timing if needed, convert SRT to VTT, then test with the video.