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countdown timer for R Markdown slides and HTML docs
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Latest commit 5c895d9 Jun 2, 2019


countdown makes it easy to drop in a simple countdown timer in slides and HTML documents written in R Markdown.


countdown(minutes = 0, seconds = 15)

Want to know more?

Check out countdown in its native environment in the countdown presentation.


You can install countdown from GitHub with:

# install.packages("devtools")

Shiny App

countdown ships with a Shiny app for an interactive full-screen countdown timer!

To launch the app, run


or use the version hosted online at

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