How to find large files on Mac before deleting anything

1. Open the built-in large-file list

On macOS Ventura or later, open System Settings → General → Storage. Open Documents with its information button. Apple documents views for large files, downloads and a File Browser; click Size to sort the results. Select a candidate and use Show in Finder to inspect its location. Names and available categories can vary with your macOS version and files.

Our suggested starting point is five recognizable results. Record their names, locations and approximate sizes before changing anything. This creates a manageable review list and avoids losing track of what you intended to keep halfway through a cleanup.

2. Narrow the search when you know the project or file type

Apple’s Finder search supports additional criteria. Search for a project name in Finder, click the plus button below the search field, and choose a criterion such as Kind. Other opens additional attributes. Check whether the selected search scope is the current folder or This Mac. Remove an unwanted criterion if results become too narrow.

For example, searching a finished project by name and limiting the kind to movies can help separate exported videos from unrelated documents. Repeat for another known project rather than assuming one search covers everything on the drive. An empty result means that search found nothing; it does not establish that the disk contains no large files.

3. Decide what each result represents

These are our practical review questions, rather than automatic deletion rules. The answer determines whether the next step is removal, a verified copy to another drive, or an application-specific storage workflow.

• Is it an original or an export? A camera original and a compressed delivery copy can look similar while serving different purposes.
• Can you obtain it again? Check that the download still exists and that you retain any account access it requires.
• Is another project using it? A completed video can still depend on source audio or footage stored beside it.
• Is it a library or backup? Follow the relevant app’s management process instead of deleting pieces inside the package.
• Is it in a synced folder? Establish what deletion will do on your other devices before proceeding.

4. Verify a small change

For files you want to retain elsewhere, open the destination copy and check the content before removing the source. Keep irreplaceable work backed up independently. Moving a file between folders on the same drive is organization, not a plan for gaining capacity.

Finder’s Trash lets you review ordinary file removals before permanent deletion. Apple provides File → Put Back for restoring an item still in Trash. Review its contents before emptying it; that final action permanently removes them.

Compare available space afterward. Stop when you have room for the intended task. If recognizable documents do not explain the shortage, use the System Data guide to investigate the remaining categories instead of extending a bulk selection into unfamiliar folders.