SRT to VTT Converter
Convert SubRip (.srt) subtitle files to WebVTT (.vtt) format — free, instant, and fully private. No files leave your browser.
How to Convert SRT to VTT Online
Drop your .srt file onto the zone above (or click to browse), and the converter instantly produces a WebVTT file ready to download. The conversion changes comma millisecond separators to dots and prepends the required WEBVTT header — that is all the format difference requires.
When do you need VTT instead of SRT?
- When adding captions to an HTML5
<video>element via a<track>tag (browsers require WebVTT) - When uploading to platforms that require WebVTT — some CDNs and streaming services prefer it
- When using JavaScript video players like Video.js, Plyr, or Shaka Player
- When accessibility tools or screen readers expect WebVTT format
SRT vs VTT — format comparison
The two formats are nearly identical in practice. See the full SRT vs VTT comparison guide.
Frequently Asked Questions
What is the difference between SRT and VTT?
SRT uses comma millisecond separators (00:00:01,000) and sequential numbers. VTT uses dot separators (00:00:01.000), starts with a WEBVTT header, and is the W3C standard for HTML5 video tracks. Full comparison →
Can I use VTT files with YouTube?
YouTube accepts both SRT and VTT for caption uploads. For YouTube specifically, SRT is often simpler, but VTT also works fine.
Does the converter keep subtitle styling?
HTML tags like <i> and <b> are passed through to the output. VTT supports additional CSS-based styling and voice-span cues, which you can add manually after conversion.
Is there a file size limit?
No. Processing happens in your browser with no server involved. The limit is your device's memory — typically enough for any subtitle file.