Yes! You can go to the folder ~/Library and then delete what you want. To open the folder from a terminal: cd ~/Library open . In the Finder, you can enable

Yes! You can go to the folder ~/Library and then delete what you want. To open the folder from a terminal: cd ~/Library open . In the Finder, you can enable "Calculate all sizes" from "View options," which will calculate folder sizes to understand what to clean first. This folder contains data from all apps; sometimes it is cache, sometimes persistent data. You will find all your previous apps taking gigabytes...