.VTT File Extension

Web Video Text Tracks File

A web video text tracks (WebVTT) format is used in .VTT files, which contain captions and subtitles for digital media. .VTT files are supported by online video hosting services as well as multimedia p...

General Information

Title VTT File Extension
Extension .vtt
Full Form Web Video Text Tracks File
File Type Subtitle Text File
Developer World Wide Web Consortium (W3C)
MIME Type text/vtt

File Function

Primary Function Store subtitles
Additional Functions Captions, Chapters
Features Text-based, Time-coded

File Characteristics

Quality Text-based
Supports Layers No
Supports Transparency N/A
Editable Yes

Use Cases

Video Players Yes
Online Streaming Yes
Accessibility Yes

Security and Practices

Security Risks Low
Best Practices Validate input, Escape HTML

Historical/Version Information

Initial Release 2010
Latest Update W3C Recommendation (2018)

Associated Types

Similar Extensions .srt, .sub, .sbv

Software Compatibility

Software Usage Policy OS Compatibility
VLC Media Player Free Windows, Mac, Linux
Google Chrome Free Windows, Mac, Linux, Android, iOS
Mozilla Firefox Free Windows, Mac, Linux