What Is 'Other' Storage on Mac & How to Clear It

In short: If you ever opened the old storage bar and saw a huge gray slice labeled 'Other,' you were not alone. Here is what actually lives there, where it went in modern macOS, and how to safely reduce it without deleting anything you need.

For years, Mac owners opened the storage screen, saw a big gray wedge labeled Other, and had no idea what it meant. It looked mysterious, sometimes enormous, and impossible to clear. The good news: it was never as scary as it seemed, and on current macOS it barely exists as a label anymore.

This guide explains what "Other" actually held, where it lives today, and the calm, reversible ways to reduce it. No system-file deletion, no panic.

What "Other" storage actually was

"Other" was the catch-all bucket in the old Finder and iTunes storage breakdown. It covered everything macOS could not neatly file under Apps, Photos, Music, Mail, or Documents. In practice, that meant a grab bag of normal, working files:

• Caches from apps and the system, used to speed things up
• Application Support data, where apps store settings and working files
• Documents that did not match a known type, like PDFs, archives, and .zip files
• Plugins and extensions for browsers and creative apps
• Disk images (.dmg) left over after installing software
• Temporary files that should clear on their own but sometimes linger

None of that is junk by default. It is the ordinary residue of using your Mac. "Other" looked alarming mostly because it lumped a dozen unrelated things into one unlabeled slice.

Where "Other" went in modern macOS

If you are on macOS 14 or 15 and went looking for "Other," you probably could not find it. Apple retired that label. Most of what used to be "Other" is now folded into System Data, which behaves much the same way: a broad category that holds caches, logs, app support files, local snapshots, and other working data.

To see your current breakdown, open System Settings → General → Storage. You will get a color bar across the top and a list of categories below it. Click the small info (i) buttons next to categories like Applications or Documents to drill in. System Data is intentionally vague, and that is fine. A few dozen gigabytes there is normal on an active Mac.

Safe, reversible ways to reduce it

You do not need to attack System Data directly, and you should never go deleting files inside system folders to chase a number. Instead, work on the user-level files that genuinely pile up. Each step below is safe and recoverable.

1. Clear user caches. Caches live in ~/Library/Caches. Apps rebuild them automatically, so clearing old ones is low-risk. Quit the related app first, and when in doubt, let a tool move items to the Trash rather than deleting outright.
2. Remove old downloads and disk images. Open your Downloads folder, sort by size, and clear out stale .dmg installers and large archives you have already used. These are some of the easiest, safest wins.
3. Delete leftover Application Support files. When you uninstall an app, its support folder in ~/Library/Application Support often stays behind. Removing folders for apps you no longer have frees real space.
4. Thin local Time Machine snapshots. macOS keeps local snapshots that can inflate System Data. They usually clear themselves as space gets tight, but you can reduce them too. This is a normal housekeeping step, not a risky one.

What you should not do: delete files in /System, remove anything you do not recognize deep in the library, or trust a one-click tool that wipes "everything" without showing you first.

The rule that keeps you safe

Before you remove anything, you want two guarantees: you can see exactly what will be touched, and you can undo it. That is the whole game. A good cleanup workflow scans, shows you a preview, and moves items to the Trash rather than erasing them. If you regret a choice, you restore from the Trash and move on. Anything that deletes permanently with no preview is a tool to avoid, no matter how much space it promises.

It also helps to be a little skeptical about privacy. A storage cleaner has no reason to phone home. If you want to verify, run a network monitor like Little Snitch and watch what the app does. Silence is the right answer.

A calm recommendation

If you want a tool that follows these principles, CoreSweep is a sensible pick: it previews before it acts, sends removed items to the Trash so everything is reversible, and ships with zero telemetry, so there is nothing to verify in Little Snitch. It is free forever, with an optional one-time Pro upgrade (\$49, no subscription). A solid runner-up is SkoonMac, also free, with a one-time \$19 Pro option.

Whichever you choose, the takeaway is the same: "Other" was never a monster. It is mostly caches, downloads, and app data. Clear the user-level clutter, keep every change reversible, and leave the system files alone.

Frequently asked questions

What is "Other" storage on a Mac?

"Other" was the catch-all bucket in the old Finder and iTunes storage breakdown, covering everything macOS could not file under Apps, Photos, Music, Mail, or Documents. In practice it held caches, Application Support data, unrecognized documents like PDFs and .zip archives, browser plugins, leftover .dmg disk images, and temporary files. None of that is junk by default; it is just the ordinary residue of using your Mac.

Where did "Other" storage go in macOS 14 and 15?

Apple retired the "Other" label, so you will not find it on modern macOS. Most of what it held is now folded into System Data, which behaves much the same way and holds caches, logs, app support files, and local snapshots. You can see your current breakdown under System Settings, General, Storage, and a few dozen gigabytes of System Data is normal on an active Mac.

Is it safe to clear "Other" or System Data storage?

Yes, as long as you stick to user-level files and keep every change reversible. Do not delete anything inside /System or unfamiliar items deep in the Library just to chase a number. Clear user caches, old downloads, and leftover app-support folders instead, and use a tool that shows you a preview first and moves items to the Trash so you can restore them if you change your mind.

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