How to Find out Large Files on Mac OS X

By Lois Green, Wednesday, April 19, 2017

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 Dr. Cleaner

Dr. Cleaner is designed for Mac users to clean up Mac OS X and speed up the computers. Its Big Files feature is to scan out files that are larger than 10 MB, which you can use to find out large files. You'll like this tool because it can:

  • Filter big files by size, name, date, type;

  • Avoid misdeletion by adding important files to white list;

  • Find duplicate copies of large files.

It is now available on Mac App Store for free. Click the download button to get it.

Download Cleaner

To use Dr. Cleaner to find out large files:  Scan Big Files

  1. Open Dr. Cleaner and choose Big Files. Click Scan.

  2. Tick the unwanted files from the scanned results. You can click Sort Button or Sort Button to use filter feature to quickly locate the target files;

  3. If there are important files, click Whitelist Button to add them to whitelist so that you won't delete them by mistake.

  4. Click Remove to delete the chosen large files.

View Big Files

Note: To find out duplicate large files, choose Duplicate Files and scan out the duplicate 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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