How to uninstall KeyCastr on Mac
Keep your KeyCastr display settings before removing the app. The official project describes a keystroke visualizer that uses macOS input permissions. This guide covers the official Mac archive app and its bundled visualizers.
Quit and remove the app
Stop the keystroke display and quit KeyCastr, then move KeyCastr.app to the Trash. Its bundled visualizers leave with the app. If you want to revoke a remaining Input Monitoring or Accessibility permission, use System Settings rather than deleting the system permission database.
Data to keep or review
~/Library/Preferences/io.github.keycastr.plistheld app preferences in the test. Copy it before removal if you want the configuration.- An attributable temporary cache was listed. The cask also names
~/Library/HTTPStorages/io.github.keycastr. - Screen recordings made with another app are your files, not KeyCastr uninstall data.
To remove the remaining preferences or HTTP storage manually, open Finder, press Shift + Command + G and paste each full path above separately. Copy wanted settings first, then move only the KeyCastr item you have checked to the Trash.
Check the result
pgrep -ifl KeyCastr
ls -ld /Applications/KeyCastr.app "$HOME/Library/Preferences/io.github.keycastr.plist"
No process output means this name was not found, not that every helper has gone. Check any match against the app’s actual executable path. A missing-path error from ls means only that location is absent; permission errors leave its state unknown. A surviving folder can be intentional data to keep.
If you installed it with Homebrew
The cask has no separate uninstall helper. Zap names the exact HTTP storage and preferences, so preserve wanted configuration first.
To uninstall without zap, use:
brew uninstall --cask keycastr
Mole checks Homebrew's full removal list and skips --zap when it reaches unchecked data, shared files or anything it cannot verify. It still removes the leftovers you selected. A direct brew uninstall --cask --zap keycastr runs Homebrew’s full zap list without consulting Mole’s checkboxes.
What Mole lists
Mole selects the app, exact preferences and attributable cache rows by default. Uncheck preferences you want to keep. It does not delete screen recordings or reset macOS input permissions.
These are the defaults with “Remove data and settings with apps” turned off. Enabling that preference can also select eligible reviewed app data; shared stores, protected profiles and agent archives keep their individual review or remain locked. Check the final list before confirming.
What this test covered
On September 25, 2026, KeyCastr 0.11.1 was copied from the official archive and uninstalled with a development build of Mole. The app, preferences and temporary cache were removed. The package contained three visualizer bundles; custom plugins, input-permission revocation and recordings were not verified.