The management of files on your Mac hard drive has always been an important issue, and something you should carefully monitor. And now, because a lot of the newer Macs come with SSD drives which are quite fast but usually smaller in capacity than the older traditional hard drives, it’s become tougher for some mac users to fit all their files on their computer. Pictures, movies, TV shows, music and podcasts on your computer can gobble up your hard drive space very quickly. You can, and should, move those types of files to the cloud or to external hard drives whenever possible. But first you need to know exactly what is taking up space on your Mac, which is what I’m going to show you now.
If you’re using the latest version of macOS, which is Sierra, or 10.12, you have a very powerful built-in tool which let’s you see exactly what is taking up space on your hard drive. All you have to do is go to the Apple logo on the top left of your screen and choose > About This Mac. A little panel will open up with a few different options. Choose Storage, at which point your Mac will scan itself, and after a few minutes will show a little colored graph with a breakdown of different categories of files on your Mac. Such as System files, Documents, Apps, Photos, iTunes, and so on. Now, if you click on the Manage button, a new panel will open up showing you an exact breakdown of all these files in each categories, the size of the files, and when it was last accessed. If you find any files that are certain you will no longer need, you can right-click on the file and delete it. Just be careful and do not start just deleting stuff if you’re not sure what the file is.
If you are not using macOS Sierra, but an older version of the Mac operating system, then I would highly recommend an app called DaisyDisk, which does something very similar to what I’ve just described. It’s a paid app, but definitely worth it. You can find DaisyDisk here