.TTXT File Extension

Timed Text Markup Language File

TTXT is a file extension for MPEG-4 Timed Text Subtitles Format files. The ISO/IEC defined this format standard. The TTXT file format works on Linux, Mac OS, and Windows. TTXT falls under the Video Fi...

General Information

Title TTXT File Extension
Extension .ttxt
Full Form Timed Text Markup Language File
File Type Text-based subtitle file
Developer World Wide Web Consortium (W3C)
MIME Type text/plain

File Function

Primary Function Display subtitles
Additional Functions Synchronize text, Metadata handling
Features Time-coded, XML-based

File Characteristics

Quality Text-based
Supports Layers No
Supports Transparency No
Editable Yes

Use Cases

Video Subtitling Yes
Accessibility Yes
Video Editing Yes

Security and Practices

Security Risks Low risk
Best Practices Validate XML, Safe sources

Historical/Version Information

Initial Release Early 2000s
Latest Version TTML2 (2018)

Associated Types

Similar Extensions .srt, .sub, .xml

Software Compatibility

Software Usage Policy OS Compatibility
VLC Media Player Free Windows, Mac, Linux, iOS, Android
QuickTime Player Free Mac, Windows
MP4Box Free Cross-platform