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TTML converter, in your browser.

Convert TTML (DFXP) files to SRT, VTT, ASS and TXT and more, or turn other files into TTML. Everything on this page is converted in your browser, so your files never leave your device.

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Convert TTML to…

8 formats

Convert to TTML from…

5 formats

About TTML

TTML is the W3C's XML subtitle format. Streaming services and broadcasters deliver captions in TTML profiles such as IMSC. It can describe regions, styles and timing precisely, but it is verbose, and many consumer players do not read it. DFXP is an earlier profile of it.

TTML is verbose XML that many consumer players cannot read. TTML is accepted by broadcast and streaming platforms.

Stands for
Timed Text Markup Language
Type
Subtitles
Compression
None (XML text)
Introduced
2010, by the W3C
Opens in
Broadcast and streaming systems, Apple and Netflix workflows, and some video players
Best for
Subtitles delivered to broadcasters and streaming services
File extension
.ttml, .dfxp
MIME type
application/ttml+xml

Questions

How do I open a TTML file?

TTML opens in: Broadcast and streaming systems, Apple and Netflix workflows, and some video players. If your device or app cannot open it, convert it to SRT or VTT above.

What can I convert TTML to?

toany converts TTML to SRT, VTT, ASS, TXT, SBV, SMI, CSV and JSON.

What can I convert to TTML?

toany creates TTML files from SRT, VTT, ASS, SBV and SMI.

Are my files uploaded?

No. Every TTML conversion listed here runs inside your browser. The files stay on your device.

Other subtitle formats

Subtitle converter