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standby offers several types of loading screens for Shiny apps. This document is a quickstart guide for using standby in your Shiny applications. Let us look at a simple example below:


ui <- fluidPage(

  standby::useSpinkit(), # include dependencies
    standby::spinkit(plotOutput("plot1")), # wrap output inside loader
    actionButton("render", "Render")


server <- function(input, output, session) {

    output$plot1 <- renderPlot({


shinyApp(ui, server)

To use spinners/loaders from standby in your Shiny application, include the following in the UI part of the app:

  • Include the dependencies using the appropriate use* functions (useSpinkit() in the above example).
  • Wrap the target output using corresponding rendering function (spinkit() in the above example).

The below table displays the dependency and rendering functions along with references:

Index Dependency Render Reference
1 useThreeDots() threeDots()
2 useSpinkit() spinkit()
3 useVizLoad() vizLoad()
4 useSpinners() spinners()
5 useLoaders() loaders()

Visit the documentation to learn how to customize the alerts and notifications.