Files Inspector

Files Inspector analyzes your drive and displays clear graphs of the folders that take up the most space. You can then manually browse through these folders and delete data you know you no longer need. In addition to analyzing your disk folders, it also displays the installed applications and their size, which you can then also uninstall from your computer. If you have a lot of photos on your drive, you can also free up space by having the app compress those photos into a JPEG compression format, which can save up to 10% of your data.