What is the difference between the SRT and VTT samples?

The cue text and timing are the same. WebVTT adds the WEBVTT header and uses a full stop instead of a comma before the milliseconds.

Subtitle sample files

SRT and WebVTT caption files for testing video players and subtitle tooling.

Formats in this category

Format	What it is	Sizes
SRT sample files.srt application/x-subrip	The simplest and most widely supported subtitle format: numbered cues with start and end times.	1 KB to 1 MB
VTT sample files.vtt text/vtt	The web standard for captions and subtitles, used by the HTML <track> element.	1 KB to 1 MB

About these files

Captions are a small feature with exacting requirements: timestamps must parse, encodings must survive and cues must appear on time. These samples have evenly spaced cues, which makes timing errors easy to notice.

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SRT

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What to test

Web development
Placeholder images, media, data and documents for building and demonstrating web interfaces.
File parser testing
Well-formed files and deliberate edge cases for testing code that reads CSV, JSON, XML, PDF and more.

Related categories

Subtitle files: questions

What is the difference between the SRT and VTT samples?: The cue text and timing are the same. WebVTT adds the WEBVTT header and uses a full stop instead of a comma before the milliseconds.