The Shiny app template is available from nanxstats/shiny-loading-skeleton. Preview the demo at shinyapps.io. Mosaic American Gothic. Original photo by Simon Lee. Let’s implement a “skeleton loader” for Shiny apps. A typical animated skeleton loading screen looks like this: A demo Shiny app with a skeleton loader. Recorded with QuickTime and converted by gifski. Compared to the traditional loading screens provided by tools like waiter, the skeleton loading screen is a prominent way to show the app is currently loading and can give users an idea of the incoming page …