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

Uninstalling R on your Mac should take less than 10 minutes—but doing it wrong can leave behind hidden dependencies that break other tools. I’ve seen R’s leftover files mess up Xcode builds and terminal workflows after users thought they’d cleaned everything.

The key is knowing exactly where R hides its files, from the main app to deep system folders.

First, check what you’re dealing with: open Terminal and run R --version to confirm the installed version. If you installed R via Homebrew, the uninstall is straightforward with brew uninstall r.

But if you used the standard installer, you’ll need to manually delete R.app, RStudio.app (if installed), and folders like /Library/Frameworks/R.framework—each one requires careful handling to avoid system conflicts.

After the main files are gone, dig deeper for leftover configs in ~/.R and ~/.RData. These folders store user-specific settings and cached data that can cause issues if left behind.

A quick sudo rm -rf command (used carefully!) will wipe them clean, but double-check paths first—one wrong keystroke can delete important files.

Once everything’s removed, verify your cleanup by trying to reinstall R or running a terminal command like which R. If you see nothing, you’ve succeeded. Just remember: other tools like Xcode Command Line Tools might depend on R’s libraries, so test your workflows before assuming everything’s clear.

What you need

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

Here's the precise method I use to eliminate R and all its traces from macOS.

Before you begin, ensure no R sessions are active. Open Activity Monitor from Applications > Utilities. In the search bar, type "R" to locate any running processes named "R", "RStudio", or "Rscript". Select each and click the Quit Process button. If you encounter a "not responding" message, force quit by selecting it and pressing Command + Option + Esc.

This step prevents conflicts during removal. I always close RStudio first—it sometimes keeps background processes running even when the main window is closed. Verify all R-related processes are gone before proceeding, or you may encounter permission errors during deletion.

Navigate to your Applications folder and locate the R application. Drag it to the Trash. If you installed RStudio separately, locate and remove that application as well. For command-line installations, open Terminal and run sudo rm -rf /Library/Frameworks/R.framework—this removes the framework-level installation.

Next, check for leftover libraries in /Library/R and ~/Library/R. Delete any remaining folders or files. Use Finder to navigate to these locations, or run sudo rm -rf /Library/R/ and rm -rf ~/Library/R/ in Terminal. This ensures no residual libraries remain that could interfere with future installations.

Open Terminal and run these commands to remove hidden configuration and cache files. First, delete user-specific R files with rm -rf ~/.R and rm -rf ~/.RData. These contain user-specific settings and workspace data. Then, clear system-wide caches with sudo rm -rf /Library/Caches/org.R-project.R and sudo rm -rf /Library/Caches/org.rstudio.RStudio.

For a thorough cleanup, also remove any leftover preference files with rm -rf ~/Library/Preferences/org.R-project.R.plist and rm -rf ~/Library/Preferences/org.rstudio.RStudio.plist. These steps ensure no lingering preferences or cached data remain, which could cause unexpected behavior in future installations.

Open Terminal and run which R to confirm R is no longer in your system path. If it returns nothing, the removal was successful. Additionally, check for any remaining files by searching for "R" in /Library and ~/Library using sudo find /Library -iname "_R_" and find ~/Library -iname "_R_". Delete any remaining files.

Finally, restart your Mac. This ensures all processes are fully terminated and any system caches are refreshed. After rebooting, attempt to launch R from Terminal by typing R. If you see an error like "command not found", the uninstallation was successful. If R still launches, repeat the removal steps carefully.

Tips & tricks for thorough R removal on Mac

Removing R completely from your Mac requires attention to detail—those hidden files and processes can cause headaches if left behind. Here’s how to ensure a truly clean uninstallation.

Process Verification is Critical: In Step 1, don’t just quit visible RStudio windows. Open Activity Monitor and search for any process containing "R" or "Rscript"—even background processes can interfere with complete removal. I’ve seen cases where RStudio kept a hidden process running for hours after closing, causing permission errors during deletion. Force quit anything suspicious using Command + Option + Esc to avoid conflicts.

Framework-Level Cleanup Matters: The Terminal command in Step 2—sudo rm -rf /Library/Frameworks/R.framework—isn’t just about removing the application. This targets the core framework that R relies on, which often gets overlooked. If you skip this, future R installations might fail or behave erratically. For extra security, verify the framework is gone by running ls /Library/Frameworks/ in Terminal after deletion.

Hidden Files Need Special Attention: Step 3’s commands target the most problematic leftover files: ~/.R, ~/.RData, and preference files. These contain user-specific configurations that can cause crashes or silent failures in future software. I recommend running these commands before rebooting—some caches might reappear if you restart too soon. Double-check with ls ~/Library/Preferences/ to confirm those .plist files are deleted.

Verification is Non-Negotiable: After rebooting in Step 4, the which R command is your final checkpoint. If it returns nothing, you’ve succeeded. But if R still appears, run sudo find / -iname "_R_" 2>/dev/null (the 2>/dev/null hides permission errors) to locate any remaining files. This brute-force search catches hidden installations in unusual locations.

Frequently asked questions

Got questions about uninstalling R on your Mac? Here are some common ones—and their answers—to help you navigate the process smoothly.

Wrapping up and next steps

You’ve made it! Removing R from your Mac doesn’t have to be a hassle—just follow the steps above to ensure a clean uninstall and free up space without leaving behind unnecessary files. 🎉 Whether you’re switching to another tool or just decluttering, you’ve taken control of your system with confidence.

Ready for the next step? Explore lightweight alternatives like Python libraries or RStudio’s cloud-based options—your data science journey is just getting started! 🚀