Tip & Trick
Uninstalling R on your Mac can feel like trying to remove duct tape—sticky and messy if you don’t know the right spots. ⚡ I’ve spent hours cleaning up after half-finished RStudio removals that left behind hidden files, so here’s the foolproof method that actually works.
The key is targeting the right files without breaking your system or leaving orphaned packages behind.
First, back up any R projects or libraries you want to keep—this isn’t a destructive process, but better safe than sorry. Then we’ll tackle the three main removal methods: the built-in R uninstaller (if you installed via CRAN), Homebrew’s brew uninstall r, and manual cleanup for stubborn leftover files.
Each method has its quirks, and I’ll walk you through the safest way to handle them all.
You’ll end up with a completely clean slate—no lingering R files, no broken dependencies, and no mysterious crashes from half-removed packages. The process takes about 10 minutes if you follow along, and I’ll even show you how to verify everything’s gone afterward.
Trust me, your future self will thank you when you install a fresh version later.
Fair warning: some users get tripped up by RStudio’s separate install files or Homebrew’s caching system. I’ll cover those edge cases too, so you don’t end up with a system that’s technically "clean" but still has hidden R traces lurking in your system libraries.
Let’s get this done right the first time.
📚 In This Guide
- What you need
- Instructions
- Tips and common mistakes
- Wrapping up and next steps
What you need
- ● Mac computer running macOS (any version, but newer versions like Ventura or Sonoma may have slight UI differences).
- ● Administrator privileges (you’ll need your Mac login password for some steps).
- ● R installed on your Mac (this one’s obvious, but we’re targeting it for removal!).
- ● Terminal access (pre-installed on all Macs—no extra tools needed!).
- ● Finder (for manually locating and deleting files).
- ● AppCleaner (free tool to detect leftover files—download here).
- ● Text editor (like TextEdit or VS Code to review logs if needed).
- ● Backup of important files (just in case—though this guide is safe!).
Step-by-Step instructions for removing R completely from macOS
Here's the foolproof method to purge R and all its traces from your Mac.
🔧 Step 1: Quit All R Processes and Applications
Open Activity Monitor from your Applications folder. Search for any processes containing "R" in the name—look for entries like RStudio, R, or Rscript. Select each one and click the Quit Process button. This ensures no background processes interfere with the uninstall.
Next, check your Dock and Applications folder for any R-related icons. Drag RStudio, R, or R Commander to the Trash if present. Empty the Trash afterward to permanently remove them. I always double-check for hidden icons in the Applications folder—sometimes the installer leaves shortcuts behind.
💻 Step 2: Delete R Installation Files and Libraries
Open Finder and navigate to /Library/Frameworks. Look for a folder named R.framework—this is the core installation. Drag it to the Trash. If you don’t see it, try /Library/Frameworks/R.framework in Terminal for precision.
Next, open Terminal and run these commands one by one to remove residual files:
sudo rm -rf /Library/R
sudo rm -rf /usr/local/lib/R
sudo rm -rf /usr/local/bin/R
Verify each command completes without errors—if you see "No such file or directory," that’s fine, just move to the next.
⌨️ Step 3: Remove User-Specific R Configuration Files
In Terminal, run:
rm -rf ~/Library/R
This deletes your personal R libraries and settings. If you get a "Permission denied" error, add sudo before the command. Be cautious—this removes all custom packages and scripts you’ve installed.
Also check for leftover R-related files in:
~/Library/Preferences/org.r-project.R.plist
~/Library/Preferences/org.R-project.RStudio.plist
Delete these files if they exist. These preference files can cause conflicts if you reinstall R later.
💡 Step 4: Clean Up System-Wide R Traces
Run these final cleanup commands in Terminal:
sudo rm -rf /usr/local/etc/R
sudo rm -rf /usr/local/include/R
sudo rm -rf /usr/local/share/R
These commands target system-wide R files that might linger after uninstall.
Next, update your PATH environment variable to remove any R-related entries. Open Terminal and run:
nano ~/.bash_profile
Look for lines containing R or Rscript and delete them. Save with Ctrl+O, exit with Ctrl+X, then restart Terminal to apply changes.
⏰ Step 5: Verify Complete Removal and Reboot
Open Terminal and type which R. If you see no output, R is successfully removed. Try running R --version—you should get a "command not found" error. If R still appears, repeat Step 2 and Step 3 carefully.
Finally, restart your Mac. This ensures all lingering processes and system caches are cleared. After reboot, check Applications and Utilities folders one last time for any remaining R-related items.
Tips & tricks for complete R removal on macOS
Real talk: I've seen R installations linger after uninstall attempts more times than I can count. These are the tricks I've learned to ensure R is truly gone from your system.
Double-Check Hidden Processes: In Step 1, don't stop at just RStudio and R processes. Open Activity Monitor and search for any process with "R" in its name—sometimes hidden services like "Rscript" or "Rgui" remain running. I once missed "Rscript" running in the background after uninstalling RStudio, which caused conflicts when I tried to reinstall a different version later.
Terminal Command Safety Net: When running the cleanup commands in Steps 2-4, I recommend typing each command carefully and reading the output before pressing Enter. For example, when deleting /Library/Frameworks/R.framework, double-check the path exists in Finder first. You can also use the ls command to verify files exist before deleting them—like ls /Library/Frameworks/R.framework—this prevents accidental deletions.
Backup Your Preferences First: Before deleting those preference files in Step 3, consider backing them up. Create a folder called "RPreferencesBackup" in your Documents folder and copy both preference files there. You never know when you might need to restore them, especially if you're troubleshooting why R isn't working after reinstallation. I've saved myself hours of frustration by having these backups.
PATH Cleanup Verification: After editing your .bashprofile in Step 4, open a new Terminal window and run echo $PATH. This shows your current path—make sure no R-related paths remain. If they do, you'll need to edit the file again. I've seen cases where users missed entries in their .bashprofile or .zshrc files, causing R commands to still work even after uninstall.
Pro Tips for Uninstall R On Mac
- Real talk: I've seen R installations linger after uninstall attempts more times than I can count.
- Double-Check Hidden Processes: In Step 1, don't stop at just RStudio and R processes.
- Terminal Command Safety Net: When running the cleanup commands in Steps 2-4, I recommend typing each command carefully and reading the output before pressing Enter.
Frequently asked questions
Will uninstalling R delete my data or projects?
No, uninstalling R won’t delete your data files or projects—only the R software and its core files. However, always back up your scripts, datasets, and RStudio projects (if used) to an external drive or cloud storage before uninstalling. R stores user files in ~/Documents/R or ~/Library/R, which remain intact unless manually deleted.
How long does it take to fully uninstall R from a Mac?
The process itself takes 5–15 minutes, depending on your Mac’s speed and whether you’re removing multiple versions. The longest part is often scanning for leftover files (like caches or libraries) in /Library/Frameworks/ or ~/Library/. Use a tool like GrandPerspective to speed up the cleanup.
Can I uninstall R without affecting other software (like RStudio or Python)?
Yes! R and RStudio are separate installations. Uninstalling R via brew or the .pkg file won’t touch RStudio, Python, or other apps. However, if you installed R via brew, check for dependencies (like libgfortran) that might need manual removal. Always verify with brew list after uninstalling.
What if I get an error saying R is still installed after uninstalling?
If you see remnants (e.g., /Library/Frameworks/R.framework or leftover brew links), run these commands in Terminal:
sudo rm -rf /Library/Frameworks/R.framework(admin password required)brew uninstall --force r(if using Homebrew)sudo rm -rf ~/Library/R(deletes user-specific configs)
Restart your Mac afterward to clear system caches.
Should I reinstall R after uninstalling, or can I use an alternative?
If you’re switching to Python (NumPy/Pandas) or Julia, you can skip reinstalling R. For stats-heavy work, consider RStudio Server (cloud-based) or Anaconda for Python. But if you need R later, reinstall via brew install r—it’s quick and clean!
Wrapping up and next steps
Uninstalling R from your Mac doesn’t have to be a hassle—with the right steps, you can remove it completely and reclaim your storage space. Whether you’re freeing up room for other tools or simply moving on, this guide ensures no lingering files slow you down. 🎉
Now that you’ve mastered the cleanup, why not explore what’s next? Try reinstalling R later with a fresh setup or dive into another programming language like Python or Julia. Your tech journey is just getting started!