How to Uninstall R on Mac: Clean Removal Without Lingering Files

Uninstalling R from your Mac should take less than 10 minutes, but I’ve seen even simple removals leave behind files that cause headaches later. 💻 The key is knowing where R hides its traces—especially when you installed it via Homebrew, RStudio, or the official installer.

I’ve cleaned up enough Macs to know the exact spots to check, and I’ll walk you through each step so nothing gets left behind.

The first rule is to back up anything important before you start—R might have stored your scripts or data in unexpected places.

Then, we’ll tackle the uninstall in order: first the main package, then any leftover folders, and finally the hidden config files that can sneak past even the most thorough uninstallers.

If you’re using Homebrew, one command does most of the work, but RStudio or the standalone installer requires extra steps to avoid broken shortcuts or lingering libraries.

By the end, your Mac will be free of R completely—no phantom processes, no half-erased folders, and no mysterious errors when you try to reinstall later. I’ll show you how to verify the cleanup with a simple Terminal check, so you can be absolutely sure it’s gone.

Trust me, skipping this step means you’ll be debugging "R not found" errors for weeks.

We’ll also cover the most common pitfalls—like permission errors when deleting system files or missing dependencies that refuse to uninstall cleanly. These tricks have saved me (and my clients) countless hours of frustration, and they’ll work for you too. Let’s get started.

What you need

Step-by-Step instructions for removing R from your Mac completely

Here's the foolproof method I use to fully purge R and its dependencies from your system.

Open Activity Monitor from your Applications folder. In the search bar at the top, type R to filter processes. You'll see entries like R, RStudio, or Rscript if they're running. Select each one and click the Quit Process button (the stop sign icon). This ensures no background processes interfere with removal.

For stubborn processes, force quit by right-clicking and selecting Quit. If you get permission errors, enter your admin password when prompted. I always recommend closing RStudio first if you're using it—some configurations keep hidden processes running.

Open Finder and navigate to /Applications/. Locate the R application and drag it to the Trash. If you installed RStudio separately, move that to the Trash as well. Empty the Trash immediately after to complete the deletion.

Next, open Terminal (Applications > Utilities). Run these commands one at a time to remove R's library files and configuration:

sudo rm -rf /Library/Frameworks/R.framework

sudo rm -rf /Library/R

rm -rf ~/Library/R

Enter your admin password when prompted. These commands target the core installation directories where R stores its system-wide and user-specific files. Don't worry—this only removes R-related files, not your system files.

In Terminal, run these additional cleanup commands to remove hidden configuration files:

rm -rf ~/.R

rm -rf ~/.RData

rm -rf ~/.Rprofile

These files contain your R workspace state, customizations, and temporary files. If you want to preserve your workspace, back up the ~/.RData file before running this command.

For a thorough cleanup, also run:

sudo rm -rf /Library/LaunchDaemons/org.R-project.R*

This removes any system launch agents that might automatically restart R services. You'll know it's working when you see no errors and the command prompt returns immediately.

To confirm R is fully removed, open Terminal and type R --version. You should see command not found instead of version information. If you see version output, you missed some files—repeat Step 2 and 3 carefully.

If you plan to reinstall R later, I recommend downloading the freshest version from CRAN (https://cran.r-project.org). This ensures you get the latest security patches and features. The reinstall process will automatically recreate the necessary directories.

Tips & tricks for clean R uninstallation on Mac

Even after following the steps, these tricks will help you avoid common pitfalls and ensure R is completely gone from your system.

Double-Check Running Processes: In Step 1, don't just rely on Activity Monitor's search bar. Open the "CPU" tab and sort by "CPU Usage" to spot any hidden R processes that might be running in the background. I once missed an RStudio helper process this way and had to repeat the entire cleanup. Also, check the "Energy" tab for any R-related processes that might be draining battery.

Backup Critical Files Before Deletion: Before running the cleanup commands in Step 3, navigate to your home directory in Finder and look for the hidden files starting with a dot (like .RData). These contain your workspace data. If you're unsure what to keep, make a copy of the entire ~/Library/R directory before deleting. I've seen users accidentally delete important project files this way.

Use Spotlight for Faster File Searching: Instead of manually hunting through /Applications or /Library, use macOS's Spotlight (Command+Space) to quickly locate R-related files. Search for terms like "R.framework", "RStudio", or "Rscript" to find any lingering files. This saves time and reduces the chance of missing something. I've found hidden R-related files in unexpected locations using this method.

Verify with Multiple Commands: After running the verification command in Step 4, open Terminal and try these additional checks to be absolutely sure R is gone: type which R and which Rscript. If you see no output for either command, you're in the clear. I've seen cases where the --version command showed "not found" but R was still partially installed—these extra checks catch those cases.

Frequently asked questions

Got questions about uninstalling R from your Mac? You’re not alone! Here are answers to the most common concerns—so you can remove R cleanly and without headaches.

Wrapping up and next steps

Uninstalling R from your Mac doesn’t have to be a hassle—you’ve now got the know-how to remove it cleanly and efficiently! 🎉 Whether you’re freeing up space, troubleshooting, or simply moving on to other tools, following these steps ensures no lingering files slow you down.

Take a deep breath—you’ve mastered this task like a pro!

Ready to explore more? Consider checking out lightweight alternatives or diving into RStudio’s documentation for future projects. Your Mac (and future coding adventures) will thank you! 🚀