Uninstall Blender on Mac
Back up any .blend files, custom add-ons and preference tweaks you want to keep before removing Blender. These steps cover Blender installed from the official disk image and from the Homebrew cask blender; the recorded test used the Homebrew cask.
Your project files are not inside the app
.blend files live wherever you saved them (commonly ~/Documents or a project folder you chose), so removing Blender does not touch them. What does live inside Blender's own data is its per-version configuration: preferences, keymaps, and any add-ons you installed or enabled, all under ~/Library/Application Support/Blender/<version> (for example 4.5 or 5.2). If you customized add-ons or preferences you want in a future install, copy that version folder out yourself before you remove the app; Blender's own Edit › Preferences window only saves preferences back into this same folder, it does not export them anywhere else. Blender's directory layout reference
Quit and remove the app
Blender has no separate login state or background service to stop first: quit it from its app menu, then move Blender from Applications to the Trash (official download), or let Homebrew remove it (see below).
Where Blender keeps its data
| Location | What it holds | What to do |
|---|---|---|
~/Library/Application Support/Blender/<version> |
Preferences, keymaps, add-ons and startup files for that Blender version | Back it up if you want to reuse your setup; otherwise safe to remove |
~/Library/Saved Application State/org.blenderfoundation.blender.savedState |
Saved window state | Safe to remove |
Container and Application Scripts folders for Blender's QuickLook thumbnail extension (org.blenderfoundation.blender.thumbnailer) |
Sandbox state for the Finder thumbnail previewer that ships inside Blender.app | Safe to remove once Blender itself is gone |
~/Library/Application Support/Blender holds one subfolder per installed version, so if you keep an older Blender version installed side by side, only remove the version folder that matches the copy you are uninstalling.
Check the result
Run these read-only commands in Terminal:
pgrep -ilf blender
launchctl list | grep -i blenderfoundation
ls -d ~/Library/Application\ Support/Blender
pluginkit -m | grep -i blender
No output from pgrep means Blender is not running. No output from launchctl list means Blender never registered a background job (it normally does not). ls -d on the Application Support folder either lists it, with one subfolder per version you kept, or reports "No such file or directory". The pluginkit line shows whether the QuickLook thumbnail extension is still registered with the system; a blenderfoundation.blender.thumbnailer line means it is, and it clears itself once Blender.app and its leftover container are both gone.
If you installed it with Homebrew
The next Mole update will skip --zap when its list reaches unchecked or shared data, or cannot be fully checked. Mole will still clean the leftovers you selected. Preview 290 does not include this protection.
Mole Preview 290 removes a Homebrew cask the same way as brew uninstall --cask --zap blender. The cask's zap list moves ~/Library/Application Support/Blender (every version's preferences and add-ons) and the saved-window-state file to the Trash, whatever you have ticked in Mole; it does not list the thumbnail-extension container, which stays behind either way. Back up any add-ons or preference tweaks first, or run the app-only removal below. Homebrew Blender cask
brew uninstall --cask blender
What Mole lists
This describes Mole 1.15 (currently in Preview) for Blender installed from the official download:
~/Library/Application Support/Blenderis listed but not selected, so your add-ons, keymaps and preferences are kept unless you tick the row.~/Library/Saved Application State/org.blenderfoundation.blender.savedStateis selected by default.- The thumbnail extension's container and Application Scripts folder are listed but not selected, since they belong to an embedded extension rather than the main app.
What this test covered
Blender was installed and removed through the Homebrew cask blender on September 17, 2026, with a development build of Mole; Mole reported it as already covered by its existing rules, so nothing new was added for this app. The Homebrew removal in this batch ran without Full Disk Access, so Mole's residue review screen did not appear and the leftover rows were never shown to the user in this run. Afterward, the QuickLook thumbnail extension's container and Application Scripts folder were confirmed to remain on disk, unclaimed by the zap list; their classification in Mole stayed review-only rather than being promoted, whether or not the review screen was shown. .blend file handling and the official disk-image install were not part of this uninstall test.
