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SubRip Text (SRT) is a text format for subtitles, described as 'the most basic of all subtitle formats'. SRT files are plain text with the extension .srt.


Subtitles are placed into sequentially ordered groups, called cues, with a starting and ending timestamp, encoded hours:minutes:seconds,milliseconds. Note the seperator for the millisecond value is a comma. The starting and ending value are seperated by -->.

Unoffical features​

Some basic HTML tags are supported by some viewers, such as:

  • <b>bold</b> bold
  • <i>italics</i> italics
  • <u></u> underlined
  • <font color="#0000FF">Blue</font> colored text.

Note these will be displayed verbatim on viewers that don't support these features.


00:00:00,000 --> 00:01:00,000
This subtitle will be visible for the first minute of the stream

00:01:00,000 --> 00:01:30,000
and this one for thirty seconds after that.