Built specifically for statistics and data

R Compiler Online — Run R Code in Your Browser

R was built by statisticians, for statistics — vectorized operations, built-in data frames, and a massive ecosystem of packages (via CRAN) for analysis and visualization. It's still dominant in academic and research computing.

Open the R compiler →

main.r

main <- function() {
  print("Hello, world!")
}

main()

What people use R here for

Testing a statistical function or data transformation quickly
Following an R course or textbook without a local R install
Checking vector or data frame behavior in isolation

No installs, no signup

Code you write here runs on a real, self-hosted Judge0 execution backend — actual R compiler or interpreter output, not a simulation. The real R interpreter runs your code, so base R's statistical functions behave exactly as they would in RStudio or a local R session. See the full list of supported languages or read more about how AnyCompiler works.