How to Reduce File Size on Mac

Alicia Santos

Mac, Tutorials

If you are a Mac user, you may have encountered situations where your computer’s storage space is running low. One effective way to free up space is by reducing the file sizes on your Mac.

In this tutorial, we will explore various methods to achieve this goal. So, let’s get started!

Clear Your Cache

If you use web browsers frequently, they tend to accumulate cache files over time. These files can take up a significant amount of storage space. To clear your cache on Safari, follow these steps:

  1. Open Safari and click on “Safari” in the menu bar.

  2. Select “Preferences” from the dropdown menu.

  3. In the Preferences window, navigate to the “Advanced” tab.

  4. Check the box that says “Show Develop menu in the menu bar”.

  5. Close the Preferences window and click on “Develop” in the menu bar.

  6. Select “Empty Caches” from the dropdown menu.

Compress Files and Folders

If you have files or folders that are not frequently accessed but still take up considerable space, compressing them can be an excellent solution. Here’s how to do it:

  1. Navigate to the file or folder you want to compress.

  2. Right-click on it and select “Compress [file/folder name]”.

  3. A compressed file will be created with a .zip extension in the same location as the original file/folder.

  4. You can safely delete the original file/folder to free up space.

Delete Unnecessary Language Files

Mac applications often come with multiple language files to cater to a global audience. However, if you only require one or two languages, deleting the unnecessary language files can save significant space. To remove these files, follow these steps:

  1. Open Finder and go to the “Applications” folder.

  2. Find the application you want to remove language files from.

  3. Right-click on the application and select “Show Package Contents”.

  4. Navigate to the “Resources” folder.

  5. Look for files ending with “.lproj” (e.g., en.lproj for English).

  6. Delete the unnecessary language files, but be careful not to delete any essential system files.

Remove Duplicate Files

Duplicate files are one of the main culprits behind excessive storage consumption. Fortunately, there are several apps available that can help you identify and remove duplicates efficiently. One popular option is Gemini 2 by MacPaw.

Gemini 2 scans your Mac for duplicate files based on various criteria such as file name, size, and content. Once it identifies duplicates, you can review them before deciding which ones to delete. This ensures that you don’t accidentally remove any important files.


In this tutorial, we have explored several methods to reduce file sizes on your Mac. By clearing your cache, compressing files and folders, removing unnecessary language files, and deleting duplicate files, you can reclaim valuable storage space and optimize your Mac’s performance.

Remember to regularly perform these maintenance tasks to prevent your storage from getting cluttered. With a little effort and regular upkeep, you can keep your Mac running smoothly and efficiently.

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