How do I quickly find large files and folders on my mac?

I need to free up space on my Mac and know there are a ton of hidden files that are eating up space (Logic for example downloads a lot of instruments... somewhere).

Is there any way I can create an interactive (or non-interactive) treemap of my hard drive?

Here is an example of a treemap from Wikipedia

Graphical representation of a treemap


Solution 1:

GrandPerspective can create a Treemap:

GrandPerspective screenshot

Solution 2:

try

du -sh *  | grep -E "\dG"

to get all files and folders of size 1G and above. (Output will only show once du is done)