How do I convert SRT to TTML?

Paste your SRT into the input box. The converter runs in your browser and produces TTML instantly. Click Download to save.

Yes — no signup, no credits, no upload. Conversion happens entirely on your device.

Are timestamps preserved?

Yes. Timestamps round-trip from SRT into TTML with millisecond precision.

SRT → TTML

Convert SRT to TTML

Free in-browser converter from SubRip Subtitle (SRT) to Timed Text Markup Language (TTML / DFXP). No signup, no upload — runs entirely on your device.

Paste SRT

TTML output

<?xml version="1.0" encoding="UTF-8"?>
<tt xml:lang="en" xmlns="http://www.w3.org/ns/ttml" xmlns:tts="http://www.w3.org/ns/ttml#styling">
  <head>
    <styling>
      <style xml:id="defaultStyle" tts:color="white" tts:fontSize="100%" tts:textAlign="center"/>
    </styling>
  </head>
  <body>
    <div>
      <p begin="00:00:12.340" end="00:00:18.910" xml:id="s1">First subtitle line</p>
      <p begin="00:00:18.920" end="00:00:24.500" xml:id="s2">Second line</p>
    </div>
  </body>
</tt>

About SRT

SRT was created for the SubRip ripper utility and is now the lingua franca of subtitling: every video player, every YouTube uploader, every editing suite reads it. Each cue is a numbered block of plain text bracketed by a start→end timestamp written as `HH:MM:SS,mmm`. Styling is generally limited to a few HTML-style tags (<i>, <b>, <font>).…

Full SRT guide →

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 →

Other conversions

SRT → LRC SRT → VTT SRT → ASS