SRT to VTT Cpations Converter #

Stream supports the VTT caption/subtitle format, but it is easy to conver SRT files. This utility can help.

SRT Input #

Manual Input

Generate

Converted VTT Output #

Save to File

Add To Your Application #

There are a few ways to use this utility on other pages.

• POST plaintext SRT to /api/convertSRT for one-time use.
• Grab the srtToVtt() and convertCue() functions in the Worker that powers this demo. They can be used in frontend or backend.

Current Limitations #

• No error reporting
• Cue coordinate markers are split out
• Bold, underline, and italic markers are retains, but <font> tags are removed

Acknowledgements #

There were a few different scripts floating around that each handled this job differently. I combined several of them:

Tools Adapted #

• imshaikot/srt-webvtt
• The converter on webvtt.org
• faizath/srt2vtt.js

Supporting Documentation #

• https://www.loc.gov/preservation/digital/formats/fdd/fdd000569.shtml?loclr=blogsig
• https://www.w3.org/TR/webvtt1/
• https://docs.lokalise.com/en/articles/5365539-subrip-srt#h_8a44b1b142