How to Free Up Storage on Mac: Complete Guide for macOS Users

Mac storage rarely fills up because of one dramatic mistake. More often, it happens quietly: a Downloads folder you stopped noticing, video files you meant to edit later, app leftovers, local device backups, and media libraries that grew faster than expected. Apple’s Storage settings are designed to show those categories clearly, and in newer macOS versions they update as you clean things up.

If you are searching for how to check mac storage, how to check storage on mac, how to clear storage on mac, or how to free up storage on mac, this guide walks through the process in the order that usually gets results fastest. The goal is simple: reclaim space without deleting something important, and do it in a way that still makes sense a month from now.

Why Mac storage fills up faster than people expect

A full startup disk is usually a mix of ordinary things rather than a hidden technical failure. Common space hogs include:

• Downloads: Apple specifically points users to the Downloads folder as a place to review and delete files you no longer need.
• Unused apps: removing an app frees the space it used, but deleting the app itself does not automatically remove every document you created with it.
• Photos, videos, and media libraries: Apple notes that media files can use a lot of storage and even suggests moving large libraries such as Photos or iMovie to another device if needed.
• Mail clutter: Apple recommends erasing junk mail and deleted mail when you need space.
• iPhone or iPad backups: Storage settings can include iOS backups and firmware files, and Apple also recommends deleting old backups if you no longer need them.
• Trash: files in Trash still occupy space until you empty it.
• System Data / Other: Apple describes this as a broad category for files that do not fit neatly elsewhere, including caches, logs, VM files, app support files, plug-ins, and other runtime resources.

That last point matters. A lot of people obsess over “System Data,” but in practice, the biggest wins usually come from user files, unused apps, and oversized media.

How to check Mac storage

Open Storage settings first

For macOS Ventura 13 or later, go to Apple menu > System Settings > General > Storage. On earlier versions of macOS, go to Apple menu > About This Mac > Storage. Apple says this view shows how much space is used by different categories, and it updates automatically as you free space.

This is the best starting point because it answers two questions at once:

• how much storage is left
• what is actually using it

If you are trying to figure out how to check storage on mac, this is the built-in answer. It is quicker and more useful than guessing from Finder alone.

What the categories actually tell you

In Storage settings, some categories have an info button that lets you open them and manage files directly. Apple says this is especially useful for categories such as Applications, Documents, Messages, Trash, and TV. In the Documents section, you can view large files, downloads, and even use File Browser to inspect folders by size.

Apple also notes that available storage is not exactly the same as free storage. Available space includes physically free disk space plus some purgeable disk caches that macOS can reclaim when needed. That is helpful context when your numbers seem a little inconsistent.

A simple comparison of the most useful ways to inspect Mac storage

The built-in methods above are supported directly by Apple’s documentation, while analyzer apps are useful when you want a more visual view of disk usage.

1. Start with Apple’s own storage recommendations

Inside Storage settings, Apple lists recommendations such as Store in iCloud, Optimize Storage, and Empty Trash automatically. Apple says Store in iCloud can keep most files in iCloud and keep only recent files in full on the Mac, while Optimize Storage can automatically remove movies and TV shows you have already watched from the Mac. Empty Trash automatically removes items that have been in Trash for more than 30 days.

These options are useful because they deal with recurring clutter, not just today’s mess.

Pros

• built into macOS
• quick to enable
• helps prevent the same problem from returning

Cons

• not every recommendation suits every workflow
• cloud-based options depend on your iCloud storage plan
• automated cleanup is helpful, but it is not a substitute for reviewing large personal files

A key caveat: Apple explicitly notes that storing files in iCloud uses your iCloud storage quota. In other words, it can free local Mac storage, but it is not “free extra disk space” in a broader sense.

2. Remove the biggest files first

When a Mac is short on space, deleting twenty tiny files feels productive and changes almost nothing. The real progress usually comes from large video files, installers, old archives, disk images, duplicate exports, and creative-project folders.

Apple’s Storage settings let you open Documents, view large files or downloads, sort files by Name, Kind, Last Accessed, or Size, and use File Browser to see which folders consume the most storage. That makes it one of the most direct ways to answer “what is taking up all my Mac storage?”

Good places to check first

• Downloads
• Desktop
• Movies
• old ZIP and DMG files
• exported video projects
• local iPhone/iPad backups
• folders from editing, design, coding, or music work

In Finder, Apple also says the status bar can show the amount of available disk space in the current window. If you need a more targeted sweep, Finder search and Smart Folders let you create rules based on file characteristics and keep that filtered view updated automatically.

3. Uninstall apps you no longer use

Unused apps are one of the cleanest ways to reclaim storage because they are often large, easy to identify, and low-risk to remove.

Apple’s guidance is straightforward: if an app includes its own Uninstall or Uninstaller tool, use that first. Apple says that is usually the best option because the uninstaller may know about login items, extensions, caches, and other support files stored elsewhere on the Mac. If there is no uninstaller, you can drag the app to Trash and then empty Trash to make the storage available again.

A few details are easy to overlook:

• deleting an app does not cancel a subscription you purchased through it
• deleting an app does not automatically remove documents you created with that app
• many macOS system apps cannot be deleted through Finder

Why this step is useful

It does more than save space. It also reduces clutter in Launchpad, Finder, login items, and sometimes background helpers.

Possible downside

Dragging apps to Trash can leave support files behind, especially with older or more complex software. That is where a dedicated uninstaller can help.

4. Clean the obvious folders Apple already points to

When people ask how to clear storage on mac, they often expect a secret trick. Usually, there is no secret. There is just a short list of places that actually matter.

Apple specifically recommends reviewing these areas:

• Downloads folder for files you no longer need
• Mail by choosing Mailbox > Erase Junk Mail and Mailbox > Erase Deleted Items if you use the Mail app
• old iPhone or iPad backups if you do not need them anymore
• Trash, because storage is not freed until Trash is emptied

This is not glamorous cleanup, but it is often the fastest path to a few gigabytes back.

5. Use Photos and iCloud the right way

If your photo library is the main reason your Mac is full, Apple’s built-in optimization tools are more useful than random manual pruning.

Apple says that in the Photos app, turning on iCloud Photos together with Optimize Mac Storage stores smaller versions locally when space is limited and keeps the full-resolution originals in iCloud. If you later want everything stored locally again, you can switch to Download Originals to this Mac.

That makes this option especially useful for people who:

• keep a large photo library
• use multiple Apple devices
• want local space back without deleting their library

Pros

• frees local storage without breaking your library
• works well for large photo collections
• built into Apple’s ecosystem

Cons

• depends on iCloud Photos
• uses iCloud storage
• less ideal if you want every original file stored offline on the Mac at all times

Apple’s iCloud management page also makes the separation clear: you can view how your iCloud storage is being used in System Settings > your name > iCloud > Manage, and you can remove backups or app data there if needed.

6. Treat “System Data” carefully

This is the category that causes the most confusion. Apple describes System Data as including logs, caches, VM files, fonts, app support files, plug-ins, temporary files, and other system resources. Apple also states that you can’t manage the contents of this category directly in Storage settings and that the contents are managed by macOS.

That means two things.

First, a giant System Data number does not automatically mean something is broken. Second, randomly deleting files from hidden Library locations just to make the graph look better is usually a bad strategy.

A safer approach is to:

• remove large user files first
• uninstall apps you no longer use
• empty Trash
• restart the Mac
• use Safe Mode only when you need temporary space for a task such as a macOS update

Apple says starting in Safe Mode can temporarily make more space available because the Mac clears certain system caches, which are then recreated as needed.

7. Optional cleanup apps: which ones are actually useful?

You do not need third-party software to manage Mac storage. Apple’s tools cover the basics well. Still, some apps are genuinely useful because they solve a specific problem better than the built-in interface.

Comparison table: useful Mac cleanup apps

The table above is based on the vendors’ own product descriptions and Apple’s app-removal guidance.

DaisyDisk

DaisyDisk is useful for people who want to see their storage instead of reading category labels. Its main appeal is visual clarity: it scans the computer and shows disk usage broken down by files and folders in a circular map. That makes it good for quickly spotting a giant archive, forgotten project folder, or bloated media directory.

Pros

• easy to understand visually
• good for finding hidden large folders
• fast way to spot what matters most

Cons

• it helps you analyze and remove files, but it is not primarily an app uninstaller or a full maintenance suite

AppCleaner

AppCleaner is useful when the problem is not “Which file is big?” but “How do I remove this app properly?” The developer describes it as a small app that thoroughly uninstalls unwanted apps by finding related files scattered across the system.

Pros

• lightweight and focused
• helpful for removing leftover support files
• simple workflow

Cons

• it is not designed as a full Mac storage dashboard
• less useful for browsing large media or project folders

GrandPerspective

GrandPerspective is useful for people who like a technical, file-centric view. The developer says it graphically shows disk usage with a treemap, where each file is represented by a rectangle sized according to disk usage. That makes it excellent for identifying the largest folders and files at a glance.

Pros

• very good at exposing large files visually
• helpful for advanced users who want a quick size map
• strong for folder-level analysis

Cons

• primarily an analyzer, not an all-in-one cleanup workflow

CleanMyMac

CleanMyMac is useful for users who want multiple cleanup functions in one place. MacPaw describes it as an all-in-one Mac cleaner and maintenance app that handles junk, duplicates, decluttering, and uninstall-related cleanup. That can be convenient if you want one dashboard instead of several separate tools.

Pros

• broad feature set
• useful for people who want one app for several cleanup tasks
• includes uninstall-related cleanup and decluttering tools

Cons

• broader than necessary if all you want is to free up a few gigabytes
• built-in macOS tools may already be enough for many users

What not to do when trying to free up Mac storage

A few habits create more problems than they solve:

• Do not delete random hidden system files just because System Data looks large. Apple says macOS manages that category and you cannot directly manage its contents from Storage settings.
• Do not assume moving an app to Trash removes everything. Apple recommends using the app’s own uninstaller if it includes one.
• Do not forget to empty Trash. Until you do, that space is still occupied.
• Do not confuse iCloud storage with local Mac storage. Using iCloud can free space on the Mac, but it still uses your iCloud plan.

A fast cleanup checklist for low Mac storage

If you need a practical sequence, use this:

• Open System Settings > General > Storage and identify the biggest categories.
• Check Documents for large files, old downloads, and oversized folders.
• Remove apps you do not use, and use the official uninstaller if one exists.
• Empty Trash.
• Clear Mail junk and deleted items if you use Apple Mail.
• Review local iPhone/iPad backups.
• Turn on Optimize Mac Storage in Photos if your library is large and you use iCloud Photos.
• Consider a visual analyzer like DaisyDisk or GrandPerspective if you still cannot see where the space went.

Conclusion

The best answer to how to free up storage on mac is usually less dramatic than people expect. Start with Storage settings, identify the biggest categories, remove large files before small ones, uninstall unused apps properly, and use Apple’s built-in optimization tools where they fit your workflow. Third-party apps can help, but mostly when you need a better visual map or a cleaner uninstall process.

If your goal is sustainable Mac storage management, think in layers: check what is full, remove the obvious heavy files, automate what makes sense, and avoid risky cleanup tricks. That approach is safer, faster, and far more effective than chasing every mysterious cache on the system.