How to Uninstall R on Mac: Clean Uninstall With No Leftover Traces

Tip & Trick

How to Uninstall R on Mac: Clean Uninstall With No Leftover Traces

Uninstalling R on your Mac should take less than 15 minutes—but most guides leave behind hidden files that clutter your system. ⚡ I’ve cleaned up R installs on dozens of machines, and the key is knowing exactly where it hides: not just the app, but the libraries, config files, and Homebrew remnants that linger after a simple drag-to-trash.

The process starts by closing RStudio and noting any custom libraries you might need to back up.

Then we tackle the three main removal paths: the GUI uninstaller (if you used one), manual deletion of R.app and its supporting files, and—if you installed via Homebrew—the brew uninstall r command that handles package-level cleanup.

Each step has its own quirks, like the hidden ~/.R folder that stores your workspace settings.

You’ll end up with a completely clean slate—no leftover R processes, no half-deleted library folders, and no phantom dependencies confusing future installs. The verification step is simple: open Terminal and run R --version to confirm it’s truly gone.

Trust me, skipping this last check has cost people hours of debugging later.

Fair warning: if you’re using R for work, double-check your project files first—some configurations store data in non-obvious places. For everyone else, this method works like a charm on macOS Ventura and earlier, and the same principles apply to RStudio Server if you’re managing that too.

📚 In This Guide

  • What you need
  • Instructions
  • Tips and common mistakes
  • Wrapping up and next steps

What you need

🛠 Materials & Tools
  • ● Mac Computer: Running macOS High Sierra (10.13) or later (R may not be fully supported on older versions).
  • ● R Installer: The original R installer (if available) or the CRAN download for verification.
  • ● Terminal Access: Built into macOS (no extra tools needed).
  • ● Administrator Privileges: You’ll need a user account with sudo access to delete system-level files.
  • ● Disk Space Check: Ensure you have at least 500MB of free space (uninstalling R may free up more, but this is a good baseline).
  • ● Finder: For manually locating and deleting leftover files (e.g., in /Library/ or /Applications/).
  • ● CleanMyMac or OnyX: Third-party tools to scan for residual files (not required but can save time).
  • ● Backup: A Time Machine backup or manual copy of important files (just in case!).

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

Here's how to scrub R from your system without leaving behind any hidden files or broken links.

1

🔧 Step 1: Quit All Running R Processes and Applications

Before you begin, make sure no R-related processes are running. Open Activity Monitor (Applications > Utilities > Activity Monitor). In the search bar, type R to locate any active processes like RStudio, RGui, or Rscript. Select each and click the Quit Process button (the stop sign icon).

If you see any frozen processes, force quit them by right-clicking and selecting Quit. This ensures no background tasks interfere with the uninstall. I always double-check here—leaving processes running can corrupt package data during removal.

2

💻 Step 2: Remove R and RStudio Through Launchpad or Applications

First, uninstall R itself. Open Launchpad and locate the R application (usually labeled just "R"). Click and hold until the app icon wiggles, then tap the X to remove it. Confirm by clicking Delete in the dialog box.

Next, do the same for RStudio if installed. Drag it from Applications to the Trash, then empty the Trash. This removes the main executables, but hidden files remain—we'll tackle those next. Real talk: Skipping this step leaves behind configuration files that can cause conflicts later.

3

🖱️ Step 3: Delete Remaining Library and Configuration Files

Open Finder and press Command + Shift + G to open the Go to Folder menu. Navigate to these locations one by one to delete leftover files:

/Library/Frameworks/R.framework – This contains the core R installation. Right-click and select Move to Trash.

/Library/Preferences/org.R-project.R.plist – This removes R's system preferences. Delete it without hesitation.

~/Library/R – Your user-specific R files (including packages). Drag this entire folder to the Trash.

Empty the Trash afterward to permanently remove these files.

4

💡 Step 4: Clean Up Hidden System Files and Cache

Open Terminal (Applications > Utilities > Terminal) and run these commands one by one to remove hidden files:

sudo rm -rf /Library/LaunchDaemons/org.R-project.R.plist – Removes any system launch items.

sudo rm -rf /Library/LaunchAgents/org.R-project.R.plist – Clears user-level launch agents.

Enter your admin password when prompted. These commands target deep system files that standard uninstallers miss. I know it sounds intimidating, but these steps ensure no traces remain—critical for a clean slate.

5

⏰ Step 5: Verify Removal and Restart Your Mac

Restart your Mac to finalize the cleanup. After rebooting, open Terminal again and type R --version. If R is fully removed, you’ll see command not found. If you still see version info, repeat Step 3 and Step 4—some files might have been missed.

For extra assurance, check these locations in Finder:

~/Library/ – Ensure no R folders remain.

/Library/ – Confirm Frameworks/R.framework is gone.

You’ve now completely removed R from your Mac. No leftover files, no broken links—just a fresh start.

Tips & tricks for clean R uninstallation on Mac

These pro tips will make sure you remove R completely—no hidden files, no broken links, and no future headaches.

Double-Check Running Processes: In Step 1, don't just quit the obvious RStudio or RGui processes. Look for anything with "R" in the name, including hidden processes like background scripts or package managers. I once missed a frozen Rscript process that caused conflicts later—always force quit anything suspicious. If a process won't quit normally, right-click and select "Quit" to force it out.

Empty Trash After Each Deletion: This is crucial after Step 2 when you remove R and RStudio from Applications. Many people forget to empty the Trash, leaving behind partial installations. I've seen cases where this caused permission errors when reinstalling other software. Make it a habit to empty the Trash immediately after dragging apps to it—this ensures no leftover files linger.

Backup Critical Files First: Before running those Terminal commands in Step 4, consider backing up your ~/Library/R folder if it contains important projects or configurations. While we're deleting everything, some users might have custom scripts or data they want to preserve. You can copy the folder to your Desktop first, then delete the original after verifying nothing important was missed.

Verify with Spotlight Search: After completing all steps, use Spotlight (Command + Space) to search for "R" across your entire system. This catches any overlooked files that might still be hiding in unexpected locations. I've found rogue R files in Developer folders and even hidden caches that the standard steps missed. This final check gives you complete peace of mind.

💡

Pro Tips for Uninstall R On Mac

  • These pro tips will make sure you remove R completely—no hidden files, no broken links, and no future headaches.
  • Double-Check Running Processes: In Step 1, don't just quit the obvious RStudio or RGui processes.
  • Empty Trash After Each Deletion: This is crucial after Step 2 when you remove R and RStudio from Applications.

Frequently asked questions

about uninstalling R on Mac—let’s tackle the most common ones so you can breeze through the process like a pro!
1

Will uninstalling R delete my data or projects?

Nope! Uninstalling R only removes the software—your projects, scripts, and data saved in folders like ~/Documents or ~/R stay intact. Always back up critical files before uninstalling, though, just in case!

2

How long does it take to fully uninstall R on Mac?

It’s quick! The actual uninstall via brew uninstall takes seconds, but scanning for leftover files (like caches or libraries) might take a few minutes. Pro tip: Use AppCleaner for a deeper dive—it’s faster than manual checks.

3

Do I need to uninstall RStudio separately?

Yes! RStudio is a separate app. Drag it to the Trash after uninstalling R via Homebrew. Check ~/Library/Application Support/RStudio for leftover configs you might want to keep (like themes or plugins).

4

Can I reinstall R later without issues?

Once you’ve removed all traces (including ~/Library/R and ~/Library/Frameworks/R.framework), reinstalling via Homebrew (brew install r) will work like new. Just remember to restore any custom packages or settings afterward.

5

What if I get errors during uninstall?

Errors usually mean leftover files or permissions. Try these fixes:

  • Run as admin: Add sudo before commands (e.g., sudo brew uninstall r).
  • Check permissions: Use chmod or chown if files are locked.
  • Reinstall Homebrew: If brew itself is broken, reinstall it via the official site.
Still stuck? Post on Stack Overflow—the R community’s got your back!

Wrapping up and next steps

Uninstalling R from your Mac doesn’t have to be a hassle—whether you’re freeing up space, troubleshooting, or simply moving on to another tool, a clean removal ensures no leftover files slow you down.

By following the steps above, you’ve successfully wiped R, its libraries, and hidden traces, giving your system a fresh start. 🎉

Now that you’ve mastered the uninstall, why not explore alternatives like Python’s NumPy or Julia for your next project? Or, if you’re ready to dive back in, reinstall R with a fresh configuration for a smoother experience.

Either way, you’ve got the skills—go rock your next data adventure! 🚀

★★★★★4.9(4 reviews)
Categories Tip & Trick