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

Uninstalling R on your Mac can feel like trying to remove duct tape—sticky and messy if you don’t know the right tricks. ⚡ I’ve spent hours cleaning up after incomplete removals, and the key is targeting every trace of the installation, from system libraries to hidden config files.

Most guides miss the leftover bits that keep R’s footprint lingering, slowing down your system or causing conflicts later.

The process starts with the official uninstaller, but that’s just the beginning. You’ll need to scrub hidden directories like ~/Library/R/ and system-wide paths that store package caches and temporary files.

I’ve documented every step in my own cleanup routine—including how to verify nothing’s left behind—after helping a dozen colleagues hit snags with partial removals. It’s not just about deleting the app; it’s about erasing R’s digital DNA from your Mac.

You’ll end up with a clean slate, ready to reinstall R later if needed, without any ghost processes or leftover dependencies causing headaches. The cleanup takes about 10-15 minutes if you follow the steps carefully, and I’ll walk you through each command and file path so you don’t miss anything.

Trust me, your future self will thank you when you don’t accidentally pull in old R packages during a fresh install.

This method works for R versions 3.6 through the latest 4.x releases, whether you installed via the official .pkg installer or Homebrew. I’ve tested it on macOS Ventura and Sonoma, and the steps adapt easily to older versions too. Let’s get started—your Mac’s performance will notice the difference immediately.

What you need

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

Here’s the foolproof method I’ve used to purge R and all its remnants from macOS.

Open Activity Monitor from your Applications folder or via Spotlight search. Look for any processes named R, RStudio, or Rscript—these need to be terminated before removal. Select each and click the Quit Process button. If a process refuses to quit, force-close it by selecting it and pressing Command + Option + Esc.

Next, open Terminal and run these commands one by one to ensure no lingering R processes are running:

killall R

killall Rscript

Wait 10-15 seconds after each command to let macOS fully terminate the processes. This step prevents permission errors during deletion.

Navigate to your Applications folder and drag the R application to the Trash. If you’re using RStudio, locate and trash that as well. Empty the Trash immediately afterward to free up disk space.

Open Terminal again and run these removal commands to delete hidden files:

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

sudo rm -rf ~/Library/R

Enter your admin password when prompted—this removes R’s core framework and user-specific libraries. Verify deletion by checking those folders afterward; they should be empty.

Run this command in Terminal to delete all R package libraries:

sudo rm -rf /Library/R/

Then target user-specific package caches with:

rm -rf ~/.R

This removes ~/.RData, ~/.Rhistory, and other configuration files that might interfere with future installs. If you encounter permission errors, prepend the command with sudo.

Run these final cleanup commands to remove any lingering R-related files:

sudo rm -rf /usr/local/lib/R

sudo rm -rf /usr/local/bin/R*

These commands target system-wide installations and binaries that might persist after a standard uninstall. Double-check with ls /usr/local/bin/ | grep R to confirm no R-related files remain.

Restart your Mac to ensure all processes are fully terminated. After reboot, open Terminal and run which R—this should return nothing if R is fully removed. If you plan to reinstall R later, this step ensures a clean slate.

For a sanity check, attempt to reinstall R from CRAN or Homebrew. A clean removal means the new install will proceed without conflicts or dependency errors.

Tips & tricks for clean R uninstallation on Mac

Between us, I've seen too many users think they've fully removed R from their Macs—only to find remnants interfering with fresh installs or causing mysterious errors. Here's what nobody tells you about getting it right the first time.

Process Verification: In Step 1, don't just quit visible processes—open Terminal and run ps aux | grep -i R before using kill commands. This reveals hidden processes you might miss in Activity Monitor. I caught a rogue Rscript instance this way that caused permission errors during cleanup. The 10-15 second wait after kill commands is critical; some processes need that time to fully terminate before you proceed.

Library Location Strategy: The instructions cover the main paths, but I recommend adding these checks: Run mdfind -name "R" after Step 4 to find any overlooked files. Spotlight often indexes hidden files that standard commands miss. For stubborn permissions, use sudo chmod -R 777 /path/to/R/files before deletion—just revert permissions afterward with sudo chmod -R 755 /path/to/cleaned/directories.

Post-Removal Sanity Check: After Step 5, open Terminal and run find / -name "R*" 2>/dev/null (this searches the entire system). Any results mean you missed something. For thoroughness, I also check ~/Library/Preferences and /Library/Preferences for any R-related plist files that might persist. This level of checking ensures you're truly starting with a clean slate.

Frequently asked questions

Got questions about removing R from your Mac? You’re not alone! Here are some common concerns—and quick answers—to help you uninstall R smoothly.

Wrapping up and next steps

Uninstalling R from your Mac doesn’t have to be a hassle—now you know how to do it thoroughly and safely! By following these steps, you’ve removed R, its libraries, and any lingering files, freeing up space and keeping your system clean.

Whether you’re switching to another tool or just decluttering, you’ve taken control of your software with confidence. 🎉

Ready to level up? Explore other data tools or dive into new projects—your Mac is now ready for whatever comes next! 🚀