28 February 2021

Does your Mac feel a little slow and unresponsive?

Or is it displaying a 'Your disk is almost full' error message?

That could be because there are excessive junk files occupying your Mac's storage disk.

Junk files take many shapes and forms. They also have varying sizes (some are tiny files while some may run into gigabytes) and are scattered across several folders on your Mac. Manually locating and removing these unwanted disk-consuming files can be exhausting and futile.

Thanks to Mac cleaning and optimization software, you can give your Mac's storage a clean sweep and free up space within seconds. So, here are our top picks of the best Mac cleaner software in 2021.

Best disk cleaner for Mac

Apr 24, 2019 One of the best free Mac cleaner software offers a wide array of features to remove unwanted junk files that accumulate on your hard disk. With this Mac cleaning app, the user can do a lot from checking the disk to configuring Apple application. You name it, this app has all the features to help you accomplish the task.

You'll find tons of applications out there offering disk cleanup for Mac. Choosing the best one that matches your needs can get difficult. This is why we compiled this list containing ten of the best cleaning software for Mac.

• Mar 25, 2021 Here’s another best free duplicate photo remover for Mac to use in 2021. Developed by WebMinds, Duplicate Photo Cleaner has great potential if you’re looking to find duplicate images on Mac and delete them without too much hassle. Below are some of the salient features that make it one of the best apps to clean duplicate photos from Mac.
• Here’s another best free duplicate photo remover for Mac to use in 2021. Developed by WebMinds, Duplicate Photo Cleaner has great potential if you’re looking to find duplicate images on Mac and delete them without too much hassle. Below are some of the salient features that make it one of the best apps to clean duplicate photos from Mac.
• Since its launch in 2013, Slack has quickly become the first name in business collaboration and messaging, and its free Mac app is the best way to keep in touch with your team.
• Best Free Apps For Cleaning Mac Dec 23, 2018 After testing many mac cleaning apps, here's our most list of the best Mac cleaner free for 2019. Free download and save more disk space for your iMac/MacBook.

The Mac cleaners reviewed in this article all found varying gigabytes of junk files on our test device — a 128GB MacBook Pro running macOS Big Sur. Here’s a result of our findings.

• MacKeeper 5 - 8.29 GB of junk files
• CleanMyMac X - 7.18 GB of junk files
• DaisyDisk - 2.10 GB of junk files
• CCleaner - 3.49 GB of junk files
• Cleaner One Pro - 8.20 GB of junk files
• Onyx - 3.80 GB of junk files
• AVG Cleaner - 3.17 GB of junk files
• Mac Cleaner Pro - 4.00 GB of junk files
• Avast Cleaner for Mac - 3.50 GB of junk files
• Disk Doctor - 5.00 GB of junk files

This is the latest version of the MacKeeper software. MacKeeper 5 boasts of improved functionalities, refreshed design, and an easy-to-navigate interface. It doesn’t matter if you’re a Mac newbie or a pro—you’ll get a hang of MacKeeper easily.

MacKeeper is an all-in-one software with a bunch of built-in cleaning tools that’ll get rid of junks and redundant files eating up your Mac’s storage. As a bonus, you also get an antivirus, duplicate finder, an ad blocker, and a variety of other privacy protection utilities.

There’s a 'Find & Fix' section where you can check the status of your Mac's storage, security, and overall performance at the click of a button.

MacKeeper also has an Auto-scan feature that’s enabled by default. So you don’t have to set a reminder or schedule to get your Mac scanned for vulnerabilities — MacKeeper does that automatically in the background.

As a cherry on top, MacKeeper also comes with a built-in 'Update Tracker'. This tool checks your Mac for outdated software and updates them accordingly.

You can also use MacKeeper’s “Smart Uninstaller” tool to uninstall apps and remove their respective leftover files.

• Price: From $14.95 (1-month plan).
• Download: Available here.

CleanMyMac X offers a suite of tools that removes junk files and malware from your Mac. The software has a clean interface and you’ll find everything you need to clean and optimize your Mac on the right sidebar.

There’s also a 'Smart Scan' feature that thoroughly scans your Mac and cleans unneeded junk, neutralizes potential threats, and boosts your system performance.

Like MacKeeper, CleanMyMac X also lets you effectively manage applications on your Mac. You can use the utilities in the Applications module to uninstall applications, remove system extensions, and find outdated apps and update them accordingly.

The Maintenance module will free up disk space on your Mac’s disk, repair broken file permission, and compress the size of your (Time Machine) backup.

CleanMyMac X is a paid cleaning tool but you can use the trial version for free. However, you should note that the trial version comes with a 500MB cleaning limit.

• Price: From $39.95 (1-year subscription).
• Download: Available here.

CCleaner is a household name in the cleaning software industry, and the company has one of the best Mac cleaning software.

CCleaner offers a cleaning utility that analyzes your Mac’s storage to hunt out cache files, browser cookies, and other junk files. It scans both system and third-party applications, leaving no stone unturned.

Asides from cleaning junk files, CCleaner also offers other performance optimization tools to instantly free up Mac memory. For example, you can use the 'Startup' tool to change your Mac's startup programs and optimize your Mac's startup speed.

The built-in “Duplicate Finder” will also help free up extra space by removing duplicate files located in similar or different folders on your Mac.

CCleaner is available for free, but there's a professional version that costs $19.95. The free version has the essential tools you need to get your Mac's storage spick and span. Likewise, it has no limit on the quantity of junks you can clean from your Mac.

However, if you fancy advanced features like automatic erasure of browser history, real-time monitoring of junk files, and automatic updates, you'll need to upgrade to the professional version.

• Price: $19.95 (1-year subscription).
• Download: Available here.

OnyX is free and gets the job done, it's not the most beginner-friendly app to clean up your Mac. The app's functionalities, utilities, and settings aren't out in the open, so it'll take some getting used to. When you get a hang of it, however, cleaning your Mac becomes a breeze.

OnyX has a deep-cleaning Storage management tool. You’ll find this in the Applications tab of the app’s Utilities section. The tool will uninstall unsupported applications, remove TV programmes and shows you've already watched, and delete junk items and cache files — all in a bid to save as much disk space as it can.

You can use OnyX for free, forever. However, make sure you download a version that’s compatible with your Mac’s operating system from the developer’s website.

• Price: Free.
• Download: Available here.

DaisyDisk does away with all the fancy stuff and takes a straightforward approach towards junk removal.

At the click of a button, DaisyDisk will scan your entire Mac disk in less than a minute and categorize your data into an interactive, color-coded map. Data labels are also displayed at the top-right corner of the app for easy identification.

To preview the content of the category, click on a data label or its corresponding color on the map to preview the content of the category. If you find a suspiciously large file consuming your Mac’s storage, all you need to do is drag the file to the Delete queue located at the bottom-left corner of the app.

This is one of the best apps to perform a disk cleanup on Mac. The simplicity and disk-scanning speed are two of its highlight features.

The only downside is that DaisyDisk isn't beginner-friendly. It shows you things eating up your Mac's storage but it doesn't tell you which ones are junk files or malware. You'll have to find and delete them yourself.

• Price: $9.95 (One-time payment).
• Download: Available here.

Formerly known as Dr. Cleaner, Cleaner One Pro (developed by Trend Micro) is another reliable app to clean up your Mac, particularly if you have a lot of duplicate photos.

It deep-cleans your Mac's storage by removing junk files, duplicate files, similar photos, and so on. There’s also a 'Big Files' tool that lets you preview and delete big files (between 10MB and 500MB) consuming excessive disk space.

The Smart Scan feature will check for vulnerabilities affecting your Mac’s performance and suggest actions to get them fixed.

Cleaner One Pro also comes with a menu bar tool that displays a quick overview of your Mac's CPU usage, memory usage, network status in real-time.

• Price: $14.95 (1-year subscription).
• Download: Available here.

Avast is renowned for its antivirus software but its Cleanup tool for Mac is just as good.

The app will clean up your Mac by removing junk files, duplicate documents, and applications that you barely use.

Avast Cleanup uses a unique image-detection technology to scan your photo gallery for bad images that are under-exposure, over-exposed, or blurry.

Everything you need to declutter your Mac is clearly spelled out on the app's dashboard. There are no hidden tools or menus. Simply launch the app, grant it access to your Mac's disk, scan for unwanted files, and choose what you want to keep or delete.

You can download Avast Cleanup for free but there’s a catch: the trial version works in scan-only mode. To clean your Mac with the app, you’ll need to sign up for an Avast Cleanup Premium subscription; Avast may provide a 60-day subscription-free trial period.

• Price: $47.99 (1-year subscription).
• Download: Available here.

This Mac system cleaner offers two main tools: a Disk Cleaner and a Duplicate Finder.

The former will scan the nook and cranny of your Mac for hidden files (application caches, junk files, unnecessary downloads, and so on) taking up disk space. The Duplicate Finder, on the other hand, will dig out identical files and folders.

The overall disk cleaning process is simple and effortless. The Duplicate Finder supports a drag-and-drop functionality that lets you find duplicate files in specific folders on your Mac. Simply drag the folder to the Duplicate Finder section and leave the rest to the AVG Cleaner.

• Price: Free.
• Download: Available here.

Disk Doctor is one of the few junk cleaners that removes a wide variety of unnecessary files from your Mac: application caches, message attachments, temporary files, application leftovers, partial or uncompleted downloads, application log files — you name it.

The app automatically scans your disk and groups unneeded files into 20 different categories. You can preview the files and choose what to keep and what to delete.

The app ships with a light interface by default but you can switch to a dark theme if you want. Disk Doctor is strictly a paid app; it costs $2.99 and is available on the App Store.

We advise that you download and use the Free Demo version of the app before making a purchase. That way, you can easily decide if it’s worth the investment or not.

We should mention that the Free Demo version only allows you to scan your drive. You cannot use it to remove junk or optimize your Mac's storage.

• Price: $2.99 (One-time payment).
• Download: Available here.

Think of MacCleaner Pro as a full-fledged file manager with disk cleaning and system optimization capabilities.

On the app’s dashboard, you’ll find an overview of your Mac’s storage color-coded into several file types and categories: system files, duplicate files, applications, documents, movies, and so on. Click on any of the categories to view the items occupying significant disk space.

In addition to removing junk files, there are additional tools that can help you fix issues affecting your Mac’s performance. The Speedup Tool, for example, will rebuild the Spotlight index, disabling startup apps, and free up RAM.

The built-in App Cleaner will also reset malfunctioning apps, manage browser extensions, remove unwanted/unused applications and delete their leftover files.

MacCleaner Pro’s junk cleaner and system optimization tools are available to all users. On the other hand, you’ll need to purchase the app to use pro tools like the duplicate finder, app uninstaller, and disk analyzer.

• Price: $44.99 (One-time payment).
• Download: Available here.

FAQ

What is the best Mac cleaning software in the market?

MacKeeper does a pretty good job. It is lightweight and you need not have any technical knowledge to use it. The interface is easy to understand and you can swiftly find junk files at the click of a button. It also comes with performance-optimization features that allows you to monitor your Mac.s memory and other resource-intensive processes in real-time.

Do Mac cleaners really work and won't slow down my Mac?

Yes, cleaning software really does help to declutter your Mac. We tested all ten applications in this article and they performed brilliantly. A cleaning software may consume CPU resources and slow down your Mac if it’s registered as a Login Item — an app that opens automatically when you boot up your Mac.

We should also mention that Mac cleaners will not slow down your Mac while scanning for junk files. If a Mac cleaner slows down your Mac's speed or performance, you may have too many apps open and running in the background. Close apps that you aren't using and try again.

Are Mac cleaner apps safe to use?

Mac cleaner apps from trusted developers are safe to use.

However, some malicious Mac cleaning software has a history of stealing users' data. Therefore, make sure you perform your due diligence and only use cleaners from reputable software companies.

macOS does a pretty good job of managing system memory and, as long as you have a reasonable amount of space free on your boot drive, it can also swap data between RAM and disk when it needs to. However, even the most recent Macs only ship with 8GB of RAM as standard, which can be tight for apps hungry for memory.

In addition, some apps misbehave and “leak” memory, meaning they hog more than their fair share leaving less for other apps. The solution is to use a memory cleaning app to free up RAM. Here, we selected the top 10 best Mac memory cleaners that will help you control memory usage.

If you want to know just how much RAM each app you’re running is consuming, go to Applications > Utilities and launch Activity Monitor. That will display all running processes, including browser tabs, and show you how much RAM they are using.

CleanMyMac X

CleanMyMac X has two methods for cleaning memory. The first is its Maintenance module that has a Free Up RAM tool that can grab gigabytes of memory back with a couple of clicks. The other tool is the CleanMyMac X menu bar item. When it’s running, it will pop up a warning whenever your Mac runs low on RAM and offers to free some up for you.CleanMyMac X also has a System Junk tool that clears out junk files from your boot drive, giving you more space for virtual RAM. The app is notarized by Apple, which means it’s safe to use on a Mac. Download the free version to try out all features.

2. Memory Clean

Memory Clean is a menu bar item that shows how much memory you have available and what is occupying the rest. It also displays the apps that are eating out your Mac’s resources and inactive apps occupying RAM. There are two options for cleaning, Clean and Extreme Clean, and you can also set Memory Clean to free up RAM automatically, so you never have to think about it.

3. Nektony Memory Cleaner

Memory Cleaner is also a menu bar app with a clear, easy-to-read dashboard-style layout. When you click on it, Memory Cleaner displays how much RAM you have in use as a percentage of the total, as well as the apps that are using the most memory. You can then free up RAM with one click.

Memory Cleaner also shows you how much space is being used by junk files on your Mac and allows you to free some of that space up, too.

4. Memory Diag

Memory Diag is a RAM cleaning tool that not only looks good but does a great job of letting you know when memory is running low. Like others on this list, it’s a menu bar item. In this case, it displays what it calls a memory pressure graph that’s color-coded so you can easily see how much memory your Mac has free. If it’s in the green, no problem. If the meter is deep in the red, though, it’s time to press the recycle button to free up memory. Memory Diag also shows you which apps are taking up most RAM.

5. Memory Magic

Memory Magic is so-called because it works away in the background performing tasks to optimize memory and free up space for applications that need it. If you click on its menu bar item, you’ll see how much RAM you have still available and can, if required, manually force it to recover memory. History graphs allow you to see how often you come close to running out of memory space.

Best Free Mac Cleaner App

6. Instastats

This menu bar app displays how much memory is occupied and color codes wired, active, inactive, used, and free, so you can see precisely how RAM is allocated at any given time. It does a similar job for CPU, disk space, network, and battery. And it has a Notification Center widget that provides the same information. It automatically cleans memory every five minutes if it is running low.

7. Memory Purge for Mac

Memory Purge is another menu bar tool that helps quickly clean memory. It looks clear and simple and does what you expect: it presents brief memory usage stats and specifies which apps are using a significant amount of memory. You can then click then free up RAM with a single click.

Best App For Cleaning Mac

8. Memory Check

Memory Check can display a memory meter in your menu bar showing the percentage of memory currently in use. It will also warn you when memory usage goes beyond a certain level and allow you to free up space. There’s a Notification Center widget and support for Dark Mode.

Best App To Clean Mac Free Online

9. SystemPal

SystemPal combines a memory monitor and cleaning tool with other features like a mini music player and screenshot utility, as well as CPU and network monitors. The memory monitor displays a pie chart showing how memory is allocated and lists the most memory-hungry processes currently running. There’s also a button to free up memory.

Best App To Clean Mac Free Version

10. iCleanMemory

iCleanMemory is the simplest of all the tools here. The menu bar item shows how much memory is in use and how much is free. Click on its icon, and it displays how memory is currently available. If it looks low, press the optimize memory button, and it will free some up.

Clean My Pc Free App

There are lots of options for memory cleaners on the Mac. Some just do one job and sit in the menu bar. Others combine multiple features and allow you to customize them. Which one you choose depends on whether you just want a tool to clean up memory or whether you want other features to help keep your Mac running smoothly.