TTML — Timed Text Markup Language

W3C XML caption standard used by streaming services and broadcasters.

Extensions

.ttml

MIME types

application/ttml+xml

Category

Subtitle

Convert TTML to…

• SRT
• TXT
• VTT
• ASS
• SUB
• SBV

Convert to TTML from…

• SRT
• VTT
• ASS
• SUB
• SBV
• SSA

Tools for TTML files

• XML formatter