How to completely remove installed apps from mac?

GrandPerspective is open-source tool helps you completely uninstall an app on Mac by visualizing your disk space to spot large app files and leftover junk. It maps your storage with a color-coded view, making it easy to find hidden app traces that regular deletion misses.

What it does: Disk space visualization. It scans your Mac’s drive and displays every file and folder as a colored rectangle, with size proportional to storage usage. This lets you quickly locate large app installers, residual cache files, and old app data that’s taking up space, so you can fully remove them to completely uninstall an app on Mac with no leftovers.

It is particularly useful for finding hidden app junk after basic uninstalls, auditing storage before selling your Mac, or troubleshooting slow performance caused by unremoved app files.