VTT Generator — Create WebVTT Captions Free
Build WebVTT caption files for HTML5 video, YouTube, and accessibility-compliant web players. Cues, styling hints, and live preview.
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How to use VTT Generator — Create WebVTT Captions Free in 3 steps
- 1
Enter your caption cues
Type or paste caption text. Each cue gets a start time, end time, and optional positioning hint.
- 2
Set cue timings
Use HH:MM:SS.mmm format with dot-separator (WebVTT spec). Helper auto-fills next start from previous end.
- 3
Export VTT
Download a valid .vtt file ready for HTML5 <track>, YouTube, or any WebVTT-compliant player.
Why choose VTT Generator — Create WebVTT Captions Free
WebVTT spec compliant
Exports include proper WEBVTT header, millisecond precision, and UTF-8 BOM for maximum compatibility.
Positioning hints
Add optional line, position, size, and align attributes per cue to control where captions appear on screen.
Timecode helper
Auto-suggest next start time; shift all timings by an offset with one click.
Browser-based
Nothing leaves your device. All work happens in-browser.
Free to use
No account, no cap, no watermark.
Who uses VTT Generator — Create WebVTT Captions Free
HTML5 video captions
Use with the <track> element on native HTML5 video players for accessibility compliance.
YouTube captions
Upload VTT to YouTube Studio for public-facing captions with precise timing.
Accessible learning content
Provide WCAG-compliant captions for online courses, webinars, and training videos.
Trusted by creators worldwide
Frequently asked questions
- What is WebVTT?
- Web Video Text Tracks Format — the W3C standard for timed text on the web. It is the native caption format for HTML5 <video>.
- How does VTT differ from SRT?
- VTT is the newer web standard. It uses dot-separators in timecodes (00:01:23.456), supports styling and positioning, and carries a WEBVTT header line. SRT uses commas and has no styling. YouTube and Vimeo accept both.
- Can I convert an existing SRT to VTT?
- Yes. Paste SRT content into the editor and it will be normalized to VTT format on export.
- What positioning options are supported?
- line (vertical position), position (horizontal %), size (%), align (start/middle/end), and vertical (for right-to-left or Asian scripts).
- Is the output UTF-8?
- Yes — UTF-8 with BOM for maximum browser compatibility.
- Where can I use a VTT file?
- HTML5 <video><track src="..."></track></video>, YouTube, Vimeo, JW Player, Video.js, and most modern video players support VTT.
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