WebVTT is the subtitle format of the HTML5 track element — the one browsers use to display captions inside web video players.
Typical use: Web video players require VTT for captions, so SRT files must be converted for HTML5 playback.
About the VTT format
WebVTT (W3C) is the subtitle format of HTML5: the `<track>` element in a `<video>` tag loads a .vtt file and browsers render, style and even strip its cues natively. It keeps SRT's readable cue model — timecodes with dots instead of commas (`00:01:15.400`) — and adds a metadata header, CSS styling, positioning (`line`, `position`, `align` cue settings) and voice tags for speakers.
Outside the browser, support is good but not universal: most video players accept VTT, some older devices and TV sets still prefer SRT. The `WEBVTT` header line is mandatory, which trips up naive SRT-to-VTT renames.
Strengths
- ✓ Native in every browser via HTML5 track
- ✓ CSS styling, positioning and speaker tags
- ✓ Clean upgrade path from SRT
Limitations
- ✗ Mandatory header line (no naive renames)
- ✗ Some hardware players still prefer SRT
- Structure
- Styled cues + header
- Types / schema
- Timecodes + cue settings
- Compatibility
- Web-native, players widespread
- Best for
- Web video captions
Convert VTT to…
4 direct directions, sorted A–Z; 🔥 marks popular targets.
Convert other files to VTT…
Frequently asked questions
What is a VTT file?
WebVTT is the subtitle format of the HTML5 track element — the one browsers use to display captions inside web video players.
How do I convert VTT files online?
Pick a target format from the "Convert VTT to…" list below, drop your file and hit convert. Everything runs in your browser — no install, no upload, no watermark, no limits.
Is it safe to convert VTT files here?
Yes. Every conversion is performed by your own device inside the browser — files never leave for a server, and the page keeps working even offline.
Which formats can VTT convert to?
This page lists all 4 directions across documents, images, audio, video, spreadsheets and archives — each one is its own free converter page.