10 Best Ways to Clean Junk Files on Mac

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10 Best Ways to Remove Junk Files from Mac

As you can see, there are various types of files that can be considered junk, and each type requires a specific approach for effective cleanup. Here are ten simple methods to help you tackle this process:

Method 1: Remove Cache System Junk on Mac

Cache files act like shortcuts for your Mac, helping it access and load data more quickly. Over time, however, these files can accumulate, taking up space and slowing down your system. Here’s how to clean them up:

1. Go to the ‘Go’ Menu: Found at the top of your screen when Finder is open, this menu helps navigate different parts of your Mac.

2. Hold Down ‘Option’ and Select ‘Library’: The Option key reveals hidden menu items, including the Library where cache files live.

   

3. Open the ‘Caches’ Folder: Here’s where your Mac stores all the cache files.

4. Review and Delete: Take a careful look and delete the cache files you don’t need. Remember, when in doubt, it’s better to leave it than delete something crucial.

   

Note. Before you start deleting cache files, make sure to close all running applications. If you delete cache files of active applications it might cause them to malfunction or crash.

Method 2: Remove Unused Language Packs

Apps on your Mac and even macOS itself come with language packs for different users worldwide. Chances are, you’re using just one or two languages and can free up space by removing the rest.

1. Find a Language Removal Tool: Apps like Monolingual can help you easily remove languages you don’t need.

2. Download and Open the Tool: Follow the instructions on the tool’s website to download and open it.

   

3. Select Languages to Keep: Be sure to keep your primary language and any others you might need. The tool will list all the languages installed on your Mac.

4. Start the Removal Process: With your selections made, initiate the cleanup. The tool will then remove the unchecked language packs from your apps.

Note. Be aware of potential issues with software updates. Some applications might expect certain language files to be present during updates. If issues arise, you might need to reinstall or repair affected applications.

Method 3: Delete Unnecessary Files on Mac from the Trash

Files aren’t completely removed from your Mac until you empty the Trash. It can be easy to forget, but regularly doing so can free up valuable space.

1. Click on the Trash Icon: Find it in your Dock, usually at the bottom of your screen. It’s where your deleted files go.

2. Review the Contents: Take a quick look to make sure you haven’t accidentally trashed anything important.

   

3. Empty the Trash: Right-click or Ctrl-click on the Trash icon and select ‘Empty Trash.’ You can also open the Trash and click the ‘Empty’ button you’ll find in the top right corner of the window.

   

By default, macOS is configured to automatically empty the Trash after 30 days to maintain free storage space without any manual intervention. To verify this setting open Finder Settings, click on the ‘Advanced’ tab, and check the box next to the Remove items from the Trash after 30 days.

Method 4: Remove Unwanted Duplicate Files from Mac

Duplicate files are identical copies that exist in multiple locations on your Mac. While some duplicates can serve as backups, most accumulate unintentionally through repeated file transfers. You could manually search for duplicates in Finder by checking for files with the same name, type, and size, but this becomes tedious, especially with large amounts of data.

To make this process faster and easier, you can use third-party tools. For example, Disk Drill can help identify and remove duplicates.

Note: Disk Drill is primarily a data recovery tool, with a duplicate finder as an additional feature. If you accidentally delete a file you still need, Disk Drill can help you recover it. Simply select your Mac’s drive from the list of storage devices in Disk Drill’s main menu and click “Search for lost data” to retrieve lost files.

1. Download and Install Disk Drill: Download and install Disk Drill for Mac from the official website. Once installed, open the application to begin.

2. Navigate to the Duplicate Finder Tool: In the left-hand menu, select ‘Find Duplicates’. This tool is designed to scan your system for duplicate files.

   

3. Select Folders or Drives to Scan: Choose the folders/drives you want to scan, then click ‘Start Scan’.

4. Review Duplicate Files: Review the duplicate files grouped by type, and use file previews to confirm which duplicates to delete.

   

5. Select and Remove Duplicates: Check the boxes next to the files you want to remove. When ready, click ‘Remove Selected’ to delete them.

6. Empty the Trash: Finally, navigate to the Trash folder and empty it to permanently remove the duplicate files.

Method 5: Clean the Downloads Folder

The Downloads folder is another key location to check. It often contains large files you may have forgotten about, such as installers and disk images for downloaded apps. Over time, these files can take up gigabytes of space, especially if you’ve downloaded multiple versions of software or updated apps without removing the older installers.

1. Navigate to the Downloads Folder: You can find this in the sidebar of the Finder window, under ‘Favorites’.

2. Sort and Review Files: Use the ‘List View’ and sort by ‘Date Added’ to see the most recent files at the top. Look through the files to determine what you still need.

   

3. Delete Unneeded Files: Select files you no longer need and right-click to choose ‘Move to Bin’ or simply press the ‘Delete’ key.

   

4. Empty the Trash: Remember, files aren’t fully deleted until you empty the Trash.

When you clean out your Downloads folder, you not only free up space but also make it easier to locate important files when needed.

Tip: Click on the “Size” column to identify the largest files. Look for installers, disk images (.dmg), installer packages (.pkg), and other items that are no longer necessary.

Method 6: Delete Log Files

After clearing out larger files from your Downloads folder, it’s worth checking log files. These files record app activities and system events, which can be useful for troubleshooting, but over time they can accumulate and take up unnecessary space. Here’s how to clean them:

1. Access the ‘Go’ Menu: Found at the top of your screen when finder is open, this menu helps you navigate to different system locations.

   

2. Go to Folder: Choose ‘Go to Folder’ from the ‘Go’ menu and type in ~/Library/Logs to access user logs, or /var/log to view system logs.

   

3. Review Log Files: Take a moment to look through the log files. If you’re unsure about what a log file is for, it’s best to leave it alone or do a quick online search.

   

4. Delete Unnecessary Logs: For logs you recognize and no longer need, move them to the Trash. Be cautious and ensure you’re not deleting anything vital to your system or applications.

5. Empty the Trash: As with any file deletion on a Mac, the process isn’t complete until you empty the Trash.

Tip: If you haven’t already, consider activating Time Machine on your Mac. This built-in backup feature allows you to restore any file, including log files, if you accidentally delete something important during cleanup. You can learn how to set it up in our article: How to Use Time Machine to Restore Your Mac.

Method 7: Deal with Unused Apps and Files

Apps and files that you no longer use can occupy a surprising amount of space. Here’s how to identify and remove them::

1. Visit the Applications Folder: You’ll find this in the sidebar of Finder, where all your installed apps are listed.

2. Sort Apps by Size: In the Finder window, choose ‘List View’ and click on the ‘Size’ column to sort your apps by size. This helps you identify the largest apps you might not need anymore.

   

3. Review and Decide: Look through the apps, especially the larger ones, and decide which ones you haven’t used in a long time.

4. Drag to Trash: For apps you choose to remove, simply drag them from the Applications folder to the Trash. Or right click and select ‘Move to Bin.’ For a more thorough cleanup, consider looking for related files in the ~/Library/ folder.

   

5. Check for Associated Files: Some apps store files in other locations like ~/Library/Application Support/ or ~/Library/Preferences/. You might want to remove these as well but be careful not to delete files needed by other apps.

   

6. Empty the Trash: Finalize the cleanup by emptying the Trash, making sure the unwanted apps and files are completely removed from your Mac.

Note. To see which apps you haven’t used recently, activate the Date Last Opened sorting option:

1. Open the Applications folder in Finder.

2. Switch to List View by clicking the list icon at the top.

3. Right-click the column headers and select Date Last Opened from the options.

4. Click Date Last Opened to sort your apps by the last time they were used.

Method 8: Delete Large and Old Files

Over time, large and old files can accumulate on your Mac, taking up storage space. So don’t forget to delete them too:

1. Use Finder’s Search: Open a new Finder window and use the search bar at the top right: start typing any symbol.

2. Search by File Size: This will reveal the “+” button below the search bar. Choose File Size > is greater than > and enter file size you wish to search.

   

3. Review Files: Go through the list and identify files that you no longer need. These could be old movies, large downloads, or outdated backups.

4. Decide What to Do: For each file, decide whether to delete it, move it to an external drive, or archive it. Moving or archiving can be a good option for files you don’t often use but aren’t ready to delete.

   

5. Delete or Move: For files you choose to delete, move them to the Trash. For those you want to keep but store elsewhere, drag them to an external drive or upload them to cloud storage.

   

6. Empty the Trash: Remember, files aren’t fully removed from your Mac until the Trash is emptied. Make sure to do this as the final step.

Tip: You can compress files that you rarely use but still want to keep, such as old documents, project files, photos, and videos. Most file types—like PDFs, text files, and images—can be compressed using macOS’s built-in Compress feature. Compression can reduce file sizes by 20–70%, depending on the file type. Text and image files usually see the highest reduction, while already compressed formats like JPEG may see minimal gains. This method helps save space while keeping important data accessible when needed.

Method 9: Clear Browser Cache and Cookies

Your web browser stores cache files (images, videos, JavaScript files) and cookies to make websites load faster and remember your preferences. While these files improve browsing speed and convenience, they can accumulate over time. Here’s how to clear cache and cookies in Safari:

1. Open Safari: Launch Safari, then click on ’Safari’ in the menu bar at the top of your screen.

2. Navigate to Privacy Settings: Select ‘Settings,’ and head to the ’Privacy’ tab to access your browser’s data management options.

   

3. Manage Website Data: Click ’Manage Website Data…’ to view all the stored cache files.

4. Remove Cache and Cookies: To clear everything, choose ’Remove All’. Alternatively, select specific websites if you want to remove data from only those sites.

   

5. Confirm Deletion: Click ’Remove Now’ to finalize the process.

Note: After clearing cache and cookies, you may need to re-enter login information, passwords, and other saved details on websites. Clearing cookies removes stored credentials and site preferences, so be prepared to manually log in where needed.

Method 10: Clean Up Junk Files on Mac with Third-Party Tools

Why spend hours manually sorting through files when there are apps that can tidy up your Mac quickly? Here are some handy third-party tools to help you clean up junk files efficiently:

• CleanMyMac: A favorite among Mac users, CleanMyMac stands out for its thorough cleaning process and user-friendly interface. It digs deep into your system to remove junk files from your Mac, including system junk, photo caches, outdated mail attachments, and more. What sets it apart is its Safety Database, which protects important files and applications from accidental deletion during the cleanup.

  

• CCleaner for Mac: CCleaner has long been trusted by PC users and brings its effective cleaning process to Mac users. It’s particularly good for those who want a quick, uncomplicated cleanup. With just a few clicks, CCleaner scans for and allows you to delete unnecessary files on Mac with minimal fuss.

  

• DaisyDisk: For those who prefer a more visual approach to disk cleanup, DaisyDisk offers a beautifully designed interface that maps out your disk space usage in an interactive, color-coded graph. This makes it easy to spot which files or folders are using up the most space, allowing you to clean junk files on Mac in a more targeted manner. DaisyDisk combines utility with aesthetics, which makes disk cleanup a surprisingly pleasant experience.

  

• OnyX: OnyX is a multi-tool for macOS with a wide array of maintenance tools and tweaks alongside its cleaning features. It’s perfect for power users who want to go beyond simple junk removal; it offers tools for in-depth system maintenance, application management, and settings customization.

  

Pick one that sounds like your cup of tea and give your Mac a good cleanup. It’ll thank you by running smoother.

Final Thoughts

Cleaning up your Mac doesn’t have to feel like a chore. With the right tools and a little time, you can remove unwanted files and keep your system running smoothly. Keep in mind, however, that a one-time cleanup is only a temporary fix. Set a monthly reminder to clear junk files and make it a habit to empty the Trash regularly.

Your Mac also comes with built-in tools to help manage storage. Go to About This Mac > Storage to see what’s taking up space. Here, you can review recommendations like “Optimize Storage” or “Reduce Clutter” to quickly identify and remove unnecessary applications and files.

Regularly review your Downloads folder and Desktop, two of the most common clutter hotspots, for a quick cleanup. Doing so helps maintain that “new Mac” feel, keeping your storage ample and your workspace clutter-free.