A to include tooltips in Shiny apps and

Stable release.

Or the version.

devtools::install_github("JohnCoene/tippy")
devtools::install_bitbucket("JohnCoene/tippy")

R Markdown

In .

library(tippy)

# standard
tippy("Hover me!", tooltip = "Hi, I'm the tooltip!")

You can also use in in-line, tippy("like this", "Here's the tooltip").