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Online R Compiler

Write, run, and share code snippets — no setup required.

script.R
Output
Click Run to see the output here.

Run R online in your browser

This is a free online R playground and code runner. Write R scripts directly in your browser, hit Run, and execute with Rscript in seconds — no RStudio, no local R install, no install.packages() wait required. It's the fastest way to test a dplyr pipeline, try a tidyr reshape, or work through a statistics exercise.

Under the hood, the editor uses the same engine as VS Code (R syntax highlighting, autocompletion, error squiggles), and your code runs with Rscript on Alpine Linux with dplyr, tidyr, stringr, and jsonlite pre-installed — the tidyverse core for data wrangling. Whether you're exploring a data frame, testing a regex with stringr, or parsing JSON with jsonlite, this online R compiler goes from idea to output in seconds.

What makes this R playground useful

  • Instant R execution — write code, press Run, and see output from Rscript in seconds, no install.packages() wait or RStudio setup needed.
  • Full R syntax highlighting, autocompletion, and clear error messages with line numbers — the same editor engine that powers VS Code.
  • Stdin input supported — readLines('stdin') and file('stdin') read from the playground's input box, so scripts that take interactive input or parse piped data work end-to-end. No install — no R interpreter, RStudio, or CRAN mirror.
  • R with dplyr, tidyr, stringr and jsonlite pre-installed — run real tidyverse data-analysis snippets without installing RStudio or the tidyverse locally.

What you can try in the R playground

  • Base-R vectors, data frames, and apply-family functions — the foundation you need before reaching for the tidyverse.
  • Tidyverse data pipelines — dplyr (filter, mutate, summarise, group_by) composed with the magrittr pipe, and tidyr pivot_longer / pivot_wider reshapes.
  • Quick R experiments — test a regex with stringr, parse a JSON blob with jsonlite, verify a statistical summary, or confirm how a grouped summarise behaves.

Online R compiler FAQ

Is the online R compiler free?
Yes. The R playground is completely free — no sign-up, no R to install, no RStudio license. Open the page and run scripts immediately.
Do I need R or RStudio installed?
No install needed. You don't need R, RStudio, or the tidyverse on your machine — the online R runner executes your script with Rscript and dplyr, tidyr, stringr, and jsonlite already loaded.
Does the R playground work on mobile and Chromebooks?
Yes. The R playground runs on any modern browser — desktop, tablet, or mobile. Great for running R scripts from a Chromebook, iPad, or school computer without installing RStudio.
Can I use readLines('stdin') in the online R compiler?
Yes. The playground has a stdin input box — readLines('stdin') and file('stdin') read your typed lines the same way they would when you pipe input to Rscript script.R at the terminal. Useful for scripts that process ad-hoc data without a file upload.
How do I learn R after trying the playground?
Edit the sample R code, press Run, and iterate. When you want structured practice, Coddy's interactive R course covers vectors, data frames, the tidyverse, and visualization with hands-on exercises — a solid base whether you're headed for stats, data science, or bioinformatics.