How to Find out Large Files on Mac OS X

by Lois Green, Tuesday, January 29, 2019

One of the most effective ways to free up space on Mac OS X is to find out large files and delete them. In this post, you'll see three ways to find out large files. Follow the one that is most convenient to you.

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# Use "Find" Feature in Finder

Other than arranging your files by size in Finder, you can also use Mac OS X's built-in "Find" feature to locate large files more precisely. To do that, follow these steps:

  1. Open Finder on Mac OS X;
  2. Press and hold Command + F keys to access "Find" feature (or go to File > Find from upper menu bar).
  3. Choose Kind > Other and select File Size as filter criteria;
  4. Enter size range, for example files larger than 100 MB;
  5. Then all large files in the size range will be presented. Delete those you don't need.

Search Large Files in Finder

# Use Find Command via Terminal

Advanced users like to use command to find large files. Here is how they do it:

  1. Go to Utilities > Terminal and open Terminal;
  2. Enter sudo find command, for example: sudo find / -type f -size +100000k -exec ls -lh {} ; | awk '{ print $9 ": " $5 }', which will show the path of files that equal or are larger than 100 MB. Click Enter.
  3. You'll be asked to enter login password of your Mac;
  4. Enter the password and the large files will appears;
  5. Delete the unwanted files by typing rm "";

Find Large Files Using Command

# Use MacMaster

FonePaw MacMaster (opens new window) is designed for Mac users to clean up Mac OS X and speed up the computers. Its Large & Old Files feature is to scan out files that are larger than 5 MB, which you can use to find out large files. You'll like this tool because it can:

  • Filter big files by size, date, type;
  • Avoid misdeletion by checking the info of certain files;
  • Find duplicate copies of large files.

It is now available to get the latest one on FonePaw website. Click the download button to get it.

To use MacMaster to find out large files:

Scan Large & Old Files

  1. Open MacMaster, move to Large & Old Files and click Scan. Tick the unwanted files from the scanned results. You can click "Sort By" to use filter feature to quickly locate the target files;
  2. If you are not sure about the items, please check the details about the files: its path, name, size and more.
  3. Click Clean button to delete the chosen large files.

View Big Files

Note: To find out other junk files, choose Junk Files and scan out the unneeded files.

Do you have other method to locate large files on Mac OS X, share with us by leaving your comment.

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