How to remove applications on a Mac I've installed some software on my Mac, such as R language environment, .djvu file reader, etc. 

How do I remove them? There's no "Control Panel -> Add/Remove programs..." 

I'm using a Mac Book Pro, but I suppose it's the same on all Macs.
To get rid of the application, you can just drag it to the trash.

There might be a few leftover files in  ~/Library/Application Support/ and ~/Library/Preferences/; there are a few ways of getting there.


You can check by going to the Finder, the "Go" menu, holding down the Option key, and choosing "Library". Just drag those to the trash, too.
Or, you can copy one of the above paths, go to Finder, the "Go" menu, then "Go to Folder" and paste the location.


Find and drag those leftovers to the trash, too.