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# How to Optimize Mac Storage for Better Performance and Space
- URL: https://macfixly.com/optimize-mac-storage-performance/
- Published: 2026-10-14T04:03:00.000Z
- Updated: 2026-10-14T04:03:00.000Z
- Description: Discover practical steps to optimize Mac storage on Mac, freeing up space and improving your device's performance with built-in tools.
- Author: Macuser
- Tags: Mac Storage, Mac Optimization, Tech Tips, Apple Mac, Computer Performance

Your Mac starts running slower, and a warning pops up that your storage is almost full. You hesitate to buy a new drive or upgrade hardware immediately but want to regain space and improve performance quickly.

This article guides you through how to optimize Mac storage on Mac by using built-in tools, managing different storage categories like “Other,” and tailoring steps for various Mac models. You’ll find clear advice on when to consider external storage or hardware upgrades, helping you set practical expectations and make informed decisions.

## Key takeaways

- Use the Storage Management tool accessed via Apple menu > About This Mac > Storage > Manage to identify and remove large files and unused apps.
- Clear “Other” storage by deleting caches, old iOS backups in Finder, and unneeded mail attachments.
- [Leverage iCloud Drive](https://macfixly.com/turn-off-icloud-drive-desktop-documents-sync/) and Optimize Storage settings to offload rarely used files automatically.
- Regularly review the Downloads folder and Documents to manually delete or move bulky files.
- Consider external drives or SSD upgrades when internal storage remains insufficient despite optimization.

## Before you start: What you need to check and prepare

Begin by identifying your Mac model and understanding your current storage situation. Click the Apple menu () and select "About This Mac" to see your Mac model and year. Then, click the "Storage" tab to view a breakdown of your disk usage and capacity. This overview helps set realistic expectations for optimization.

Backing up your data is essential before making any changes. Use Time Machine by connecting an external drive, then open System Settings, select "General," and click "Time Machine" to turn it on. Once enabled, Time Machine automatically backs up your system, ensuring you can restore files if needed. Alternatively, you can use third-party backup solutions if preferred.

macOS offers built-in tools to help manage storage efficiently. The Storage Management window, accessible from the "Storage" tab in "About This Mac," provides options like "Store in iCloud," "Optimize Storage," and "Reduce Clutter." Familiarizing yourself with these tools before starting optimization gives you a clear path forward.

1. Open the Apple menu () and select "About This Mac." You should see your Mac model and year displayed clearly.
2. Click the "Storage" tab to review your disk usage. The colored bar graph indicates how much space is used by categories like Apps, Documents, and System.
3. Connect an external drive and open System Settings. Navigate to "General" > "Time Machine," then toggle Time Machine on. You should see a message that backups are scheduled.
4. From the "Storage" tab, click "Manage" to open Storage Management. Review options like "Store in iCloud" and "Optimize Storage" but do not enable them yet. This prepares you to make informed decisions during optimization.

## How to optimize mac os storage using built-in tools

macOS includes a Storage Management utility that helps you identify and remove unnecessary files, improving available space without complex steps. Follow these actions to use it effectively.

1. Click the Apple menu and select "About This Mac." A new window appears showing your Mac's overview.
2. Go to the "Storage" tab and click "Manage." This opens the Storage Management window, where categories of storage usage are displayed.
3. Enable "Optimize Storage" by checking the box. This setting automatically removes iTunes movies and TV shows you've already watched, freeing space without deleting your purchases.
4. Turn on "Empty Trash Automatically" to delete files in the Trash that have been there for more than 30 days. This ensures old deleted files do not occupy space indefinitely.
5. Review the "Documents" section to find large files and downloads. Sort files by size or last accessed date to identify candidates for removal or archiving.
6. Check the "Applications" category to remove unused apps. Deleting rarely used apps can reclaim gigabytes of storage depending on what you have installed.
7. Examine other categories such as "Mail," "Messages," and "System" files. Clearing caches or attachments within these areas can also free space.

By completing these steps, users typically see a noticeable increase in free storage, sometimes several gigabytes, depending on prior clutter. While Storage Management simplifies the process, keep in mind it doesn't replace manual review for highly customized needs.

## How to get more storage on Mac by managing 'Other' storage

'Other' storage on your Mac includes system files, caches, logs, temporary files, old iOS backups, mail attachments, and other miscellaneous data that doesn’t fit neatly into categories like Apps, Documents, or Photos. This category can grow large over time but can be safely reduced with careful cleaning.

![How to get more storage on Mac by managing 'Other' storage – how to optimize Mac storage on Mac](https://macfixly.com/content/images/2026/10/optimize-mac-storage-performance-2.webp)

1. **Clear cache files:** Open Finder, select *Go* \> *Go to Folder*, type `~/Library/Caches`, and delete the contents of individual folders. You should see a reduction in cache-related files without affecting your data.
2. **Clear browser data:** In Safari, go to *Safari* \> *Preferences* \> *Privacy* \> *Manage Website Data*, then remove stored cookies and caches to free up space. After this, browsing may be temporarily slower but storage will be freed.
3. **Remove old iOS backups:** Open *Finder*, go to *Manage Backups* under your device section, and delete outdated or unnecessary backups. This can free several gigabytes depending on your backup history.
4. **Delete mail attachments:** In the Mail app, go to *Mailbox* \> *Erase Junk Mail* and *Erase Deleted Items* to clear locally stored attachments. Alternatively, manually search for `~/Library/Mail` and remove large attachment files.
5. **Use third-party cleanup utilities cautiously:** Tools like CleanMyMac or OnyX can automate clearing caches and logs, but use them carefully to avoid deleting essential files. Always back up before running these utilities.

For example, a Mac with 30 GB marked as 'Other' storage might reduce this to around 10-15 GB after manual cache clearing, removing old backups, and deleting mail attachments, noticeably increasing free space.

## How to make more storage on Mac by managing files and folders

Managing files and folders efficiently can free up considerable space on your Mac. Start by using Finder to locate large files: open Finder, press Command + F, then select "File Size" is greater than "100 MB" to list sizable files that might be candidates for deletion or relocation. This helps you identify storage hogs quickly.

Create smart folders to find duplicate or old files. In Finder, go to File > New Smart Folder, then click the '+' button to add search criteria such as file type, date, or name. While macOS doesn’t directly identify duplicates, third-party apps can help with this task. Removing duplicates can often reclaim several gigabytes of space.

Move rarely accessed files to external drives or cloud storage like iCloud Drive or Google Drive. This keeps your internal storage lean while preserving access to important data. For example, shifting a collection of archived videos totaling 10 GB to an external drive can instantly free that space on your Mac.

Organize files into clearly named folders and maintain a consistent structure to prevent clutter buildup. Regularly review and clean these folders to avoid storing redundant or obsolete content.

1. Open Finder and press Command + F; set the filter to "File Size" > "100 MB" to list large files. You should see a list of files sorted by size.
2. Create a New Smart Folder (File > New Smart Folder); use '+' to add criteria such as file type or last opened date. You’ll get a dynamic folder showing files matching those filters.
3. Identify duplicates using a trusted third-party tool; delete or consolidate duplicates. The duplicated files should no longer appear, freeing up space.
4. Drag seldom-used files from your internal drive to an external drive or upload them to cloud storage. Confirm the files are accessible on the external location and removed from your Mac.
5. Set up a folder hierarchy with descriptive names and periodically delete unnecessary files. Your folder structure will be clearer, reducing future clutter.

For example, removing duplicates and moving a 15 GB folder of old project files to an external SSD helped reclaim over 20 GB of internal storage on a typical Mac setup, enhancing available space without hardware upgrades.

## How to increase storage on Mac Mini and MacBook models effectively

Mac Mini and MacBook models differ significantly in storage upgrade options. Mac Minis often allow internal SSD upgrades or replacements, especially older Intel-based models, while most recent MacBooks have soldered storage, limiting internal upgrade possibilities.

When considering more storage, internal SSD upgrades in Mac Minis offer the fastest read/write speeds, usually exceeding 3,000 MB/s for NVMe drives, ensuring optimal performance. In contrast, MacBooks generally require external solutions due to their integrated storage.

External SSDs connected via Thunderbolt 3 or 4 provide high-speed access, often reaching 2,500 to 3,000 MB/s, close to internal SSD speeds, making them a practical choice for expanding storage without sacrificing much performance. USB-C external drives, while more affordable, typically offer slower speeds (around 500 to 1,000 MB/s), which might impact tasks like video editing.

Cloud storage services offer flexible, off-device storage accessible via the internet. This reduces local storage usage but depends on network speed and can involve ongoing subscription costs. It’s ideal for files accessed irregularly or for backup purposes.

1. Check your Mac model's specifications in About This Mac > System Report > Storage to confirm internal upgrade possibilities. You should see if the SSD is removable or soldered.
2. For Mac Minis with removable SSDs, research compatible NVMe or proprietary SSDs and consider professional installation to maintain warranty and avoid damage. Success means your Mac recognizes the new drive in System Report.
3. If internal upgrades are not feasible, select a Thunderbolt 3/4 external SSD with at least 1,000 MB/s read/write speeds for balanced cost and performance. Connect it via a Thunderbolt port and verify its mount and speed via Disk Utility.
4. For budget options, use USB-C external SSDs but expect slower file transfers, suitable for document storage but less ideal for demanding applications. Confirm connectivity and speed before heavy use.
5. Evaluate cloud storage plans (iCloud Drive, Google Drive, Dropbox) based on your storage needs and internet reliability. Sync selected folders and verify accessibility across devices to ensure smooth integration.

## How to optimize MacBook performance by improving storage health

Storage health affects how quickly your MacBook runs apps and indexes files. When your drive is nearly full or fragmented, it slows down system responsiveness because macOS struggles to manage data efficiently. Overfilled storage also forces the system to rely heavily on virtual memory, which uses slower SSD space as temporary RAM, degrading performance.

Use Disk Utility’s First Aid to maintain disk health and resolve file system errors that might cause slowdowns. Running First Aid can fix minor corruption and improve read/write efficiency.

1. Open **Disk Utility** from the Utilities folder in Applications. You should see your startup disk listed on the left.
2. Select your startup disk and click **First Aid** in the toolbar.
3. Click **Run** and wait for the process to complete. A message will confirm if the disk appears healthy or if repairs were made.

Freeing up storage improves Spotlight indexing speed and reduces app launch times. For example, when free space increases from under 10% to above 20%, many users experience noticeably faster application openings and smoother multitasking. Keeping at least 15-20% free storage helps avoid excessive virtual memory usage and maintains better system responsiveness.

## Optimizing storage on MacBook Air and MacBook models with iCloud integration

Using iCloud storage features on your MacBook Air or MacBook can significantly reduce local disk space usage. The key option is **Optimize Mac Storage**, found in *System Settings > Apple ID > iCloud > iCloud Drive*. When enabled, this setting keeps recent files and optimized versions locally while storing full originals in iCloud, freeing gigabytes of space without deleting your data.

![Optimizing storage on MacBook Air and MacBook models with iCloud integration – how to optimize Mac storage on Mac](https://macfixly.com/content/images/2026/10/optimize-mac-storage-performance-3.webp)

Syncing your Desktop and Documents folders to iCloud Drive also helps manage storage. Files you rarely open are stored only in iCloud, while frequently accessed items remain on your device. This approach can reclaim tens of gigabytes, depending on your file volume.

Keep in mind that relying on iCloud for file access requires stable network connectivity; opening files not stored locally may involve a delay while downloading. Also, consider your iCloud storage plan, as increasing iCloud capacity can involve ongoing costs. Balancing these costs against the price and limitations of local storage is essential for an optimal setup.

1. Open **System Settings** and click your **Apple ID** at the top left. You should see your iCloud settings.
2. Select **iCloud > iCloud Drive** and enable **Optimize Mac Storage**. Your Mac will begin managing local copies automatically.
3. Within iCloud Drive settings, turn on **Desktop & Documents Folders** syncing. You will see these folders start syncing to iCloud, with less-used files offloaded.
4. Check your local storage under **About This Mac > Storage**. After some time, you should notice a decrease in used space as files move to iCloud.
5. Ensure your network connection is stable to prevent delays when opening files that reside only in iCloud.

## Troubleshooting common issues when optimizing Mac storage

If Storage Management does not free the expected space, begin by restarting your Mac and rerunning the tool, as temporary system files may refresh only after reboot. Verify that large files and apps identified for deletion or offloading are actually removed, not just marked for cleanup.

Stubborn 'Other' storage often includes system caches, logs, or snapshots that resist manual clearing. Use the Terminal command **tmutil listlocalsnapshots /** to identify Time Machine snapshots; deleting these with **tmutil deletelocalsnapshots \[date\]** can free space safely. Also, check for large cache folders in *\~/Library/Caches* and clear them carefully.

If performance issues persist despite available free space, consider running First Aid in Disk Utility to repair disk errors that may slow down your Mac. Also, resetting the NVRAM and SMC can resolve certain hardware-related performance glitches.

To avoid data loss when cleaning up, boot into Safe Mode by restarting your Mac and holding the Shift key until the login window appears. This disables unnecessary processes and allows safer cleanup of system caches and startup items. After cleanup, restart normally to verify improvements.

Common error messages include “Storage is full” despite free space showing or “Disk not ejected properly.” These often indicate corrupted disk indexes or unmounted volumes, resolvable by running Disk Utility’s First Aid and securely ejecting external drives.

## More on this topic

- [How to Remove Background Items and Images on Your Mac](https://macfixly.com/remove-background-items-mac/)
- [How to Manage Login Items on Mac: A Clear Step-by-Step Guide](https://macfixly.com/manage-login-items-mac/)
- [How to Turn On FileVault on Mac: A Step-by-Step Guide](https://macfixly.com/turn-on-filevault-mac/)

## Frequently asked questions

### How to increase mac storage?

You can increase Mac storage by removing unnecessary files, uninstalling unused apps, and clearing caches. For devices with upgradeable storage like some Mac Mini models, consider installing a larger SSD. Alternatively, use external drives or cloud storage services such as iCloud Drive to offload files. Keep in mind that many MacBooks have soldered storage, making hardware upgrades impossible.

### How to manage storage on a mac?

Manage storage by opening About This Mac > Storage > Manage, which provides recommendations like emptying the Trash automatically and reviewing large files. Regularly clear caches and delete downloads you no longer need. Organize files into folders and use the Optimize Storage feature to store older files in iCloud while keeping recent files locally.

### How to optimize mac performance?

Optimizing Mac performance involves freeing up storage space, closing unnecessary background apps, and keeping your macOS updated. Monitor activity in Activity Monitor to identify resource-heavy processes. Clearing browser caches and limiting startup items also helps maintain responsiveness. If performance issues persist, resetting the SMC or PRAM can sometimes resolve hardware-related glitches.

### How to optimize my mac laptop performance?

For Mac laptops, optimize performance by managing storage carefully since limited free space can slow down your system. Use the Storage Management tool to delete large and old files, and disable or remove unused login items under System Preferences > Users & Groups. Additionally, ensure your battery is in good condition, as performance can be throttled on degraded batteries.

### How to optimize mac os for better storage performance?

Use built-in tools like Storage Management to automatically clear space and store files in iCloud. Regularly update macOS to benefit from performance improvements and bug fixes. Monitor the 'Other' storage category by deleting old documents, caches, and system files safely. Consider using Disk Utility to verify and repair your disk if you notice slow storage access.

## Limitations of this advice and when to seek alternatives

This advice does not cover physically replacing or upgrading built-in storage on Macs that have soldered or non-upgradable SSDs. If your device has a fixed internal drive, hardware upgrades require professional service or replacement of the entire machine. Users with professional workflows or large media libraries may need dedicated external storage solutions such as Thunderbolt drives or NAS systems for reliable capacity beyond optimization. Exercise caution if using third-party cleanup apps; some can cause unintended data loss or system instability if not used properly.

The single most effective next step is to access the Apple menu > About This Mac > Storage > Manage to review and implement the built-in recommendations tailored to your device. This centralized tool offers options like emptying Trash automatically, reducing clutter, and optimizing storage with iCloud integration, providing a clear starting point to regain space while maintaining system stability.