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How to Convert SRT to VTT
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When Do You Need to Convert SRT to VTT?
WebVTT is the subtitle format browsers use. Converting SRT to VTT is what you do to caption a video on a web page, since the HTML video element reads WebVTT and does not read SRT at all.
What Happens When You Convert SRT to VTT
The two formats are close relatives, which makes this one of the simpler subtitle conversions. Both hold sequential cues with a start time, an end time and text. WebVTT requires a WEBVTT header line, uses a full stop rather than a comma before the milliseconds, and permits styling and positioning that SRT has no way to express. Timings and text carry across unchanged, and cue numbering, which SRT requires and WebVTT treats as optional, is preserved.
Worth knowing before you convert
WebVTT is the format identifier behind the .vtt extension, so a file saved as .vtt is what this produces.
About SRT and VTT
application/x-subrip
Simple text file format used for subtitles, consisting of timing information and text.
text/vtt
Web Video Text Tracks format. The standard for displaying timed text in HTML5 video.
Conversion Notes
SRT and VTT use different internal structures, and our converter handles the mapping automatically. Text content, core data, and primary media streams are preserved. Format-specific features with no equivalent in the target — proprietary metadata, platform-specific extensions, or advanced layout instructions — are omitted from the output file.
Frequently Asked Questions
The HTML video element reads WebVTT only. SRT is not a supported format for web captions, which is the usual reason to convert.