Convert TTML to VTT
Free in-browser converter from Timed Text Markup Language (TTML / DFXP) to WebVTT (Web Video Text Tracks). No signup, no upload — runs entirely on your device.
About TTML
TTML is a W3C XML standard for timed text. It supports rich styling, regions, animations and accessibility metadata, and is the format Apple Music ships synchronised lyrics in (TTML 2 with Apple's iTunesTimedText profile). It also underpins SMPTE-TT for broadcast captions and is exported by professional subtitling suites such as EZTitles, Subtitle …
Full TTML guide →About VTT
WebVTT is the official W3C standard for HTML5 <track> elements. It looks similar to SRT but uses a `WEBVTT` header, periods (not commas) as decimal separators, and supports cue settings (position, alignment, line), regions, NOTE comments, and styling via inline ::cue rules. This is the format YouTube, Vimeo, JW Player and every browser-based player…
Full VTT guide →