The cache is a type of memory where data is stored so as to make it easily available when it is needed by the macOS High Sierra. It stores technical data when a browser, app, or system operations are carried out. Over some time cache files can occupy space on hard drive. That`s why it is very important to clear Mac cache regularly in order to preserve its high speed. Caches can include temp files, apps specific caches, partly completed downloads, messaging cache, and web browser history and cache. So, let`s find out how to clean Mac cache via different ways.

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  • OnyX is a multifunction utility that you can use to verify the structure of the system files, to run miscellaneous maintenance and cleaning tasks, to configure parameters in the Finder, Dock, Safari, and some of Apple's applications, to delete caches, to remove certain problematic folders and files, to rebuild various databases and indexes, and more.
  • Onyx Mac Download. Developer: Titanium’s Software. OnyX mac is an all-in-one system maintenance tool and optimizer. It is a very simple and light application that comes with a variety of maintenance tools that can be run to make sure that you are enjoying your system at its fullest.
  • Check how to clean cache on Mac manually or clear it with a click of a button. The easiest way to refresh cache and remove browsing data in macOS is the best Mac cache cleaner software. Try it now for free!
  • Mac cleaner software helps you remove GBs of application language data, which is often unused. These tools can also remove cache files on regular basis, saving a lot of space. System Log files are stored by System Apps that runs from the moment you boot up to OS X Desktop.

Clean your Mac's hard drive with a couple of mouse clicks Additionally, Onyx can be used to quickly clean system, user, fonts and internet caches, to remove obsolete and unneeded log files, and to securely empty the contents of the Trash folder, all of these for freeing up space on your Mac's hard drive. Now, let’s check out some of the best Mac cleaner apps on the market. Starting with the best one: Best Mac Cleaner Software in 2020: CleanMyMac X. CleanMyMac X grabs the winning spot with its multi-faceted features and intuitive dashboard. Not surprisingly, since the developers knows the ins and outs of how a Mac works, and how it can be. CCleaner for Mac! Clean up your Mac and keep your browsing behaviour private with CCleaner, the world's favourite computer cleaning tool.

Clean up your Mac manually

Go to cache and delete the contents – that is what the cache cleaning on Mac is about. Open Finder, select “Go”, click “Go to folder”, type “Library/Caches/”, remove certain cache files, and empty trash.

Fix a lot of browser related errors by Mac safari cache cleaning

All Safari users should remember that too much cache piling up in the background can cause a lot of problems. Clear cache in Safari is pretty easy:

  • Launch Safari on your computer
  • Click on the “Safari” in the menu bar
  • Click on “Preferences”
  • Click on the “Advanced”
  • Click on the “Show Develop menu in menu bar”
  • Click on “Develop”
  • Click on “Empty Caches”

Clear Chrome cache by taking several steps

It is very helpful to know how to clear out all Chrome data because there are many cases when users might want to delete all cookies, browser history, web data, and download history for privacy or troubleshooting purposes. This is the simplest way to do it:

  • Open Chrome
  • Go to the “Chrome” menu
  • Choose “Clear Browsing Data”
  • Choose caches and web data you are going to remove
  • Choose the time period to delete from
  • Choose “Clear browsing data”

Use MacFly Pro to clear cache on your Mac

MacFly Pro is an effective app for decluttering your Mac`s system. It can help you clean up and speed up your computer safely. Here is how it works:

  • Install the program
  • Open MacFly Pro
  • Head to the Cleanup tab
  • Start a System scan
  • Press Review Files
  • Press Clean to remove temporary files, log, User and System cache

With the use of MacFly Pro, you can tackle the problem in no time. You will have a wonderful opportunity to get maximum out of your computer performance seamlessly and quickly. What is more, this cleaning program offers everything you will be satisfied with – intuitive design, simple navigation, reliability, and effectiveness.

Now you know how to clean cache on your system and improve its maintenance. All you have to do is to transfer your knowledge into practice.

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OnyX is a well-known program that has been helping Mac users since Jaguar (OS 10.2 X). It’s a utility software that offers comprehensive maintenance for your Mac. This straightforward maintenance and optimization tool for OS X is great for streamlining your machine. OnyX OS X Cleaner is a multifunctional utility that can verify your Mac’s startup disk, run a variety of maintenance and cleaning tasks, and configure parameters in Finder, Dock, Safari, and other apps. It’s handy for deleting caches, removing redundant and excessive files and folders, rebuilding databases and indexes, and making your machine run more smoothly and with added disk space.

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Right away OnyX feels like an app for a demanding Mac user who already knows one’s way around macOS. It’s safe to use, but due to rich selection of tools and commands inexperienced users can potentially cause damage to their systems.

Titanium Software’s OnyX is a true Swiss-army knife in the Mac utility world. Its toolkit packages everything from a various system reports generator to cleaning and spotlight reindexing tools. You will notice right away that OnyX puts main emphasis on advanced functionality at cost of good-looking, easy-to-use interface. Bare minimum effort has been put in the way the app looks, which seems alright considering OnyX’s functionality and no price charged for any of it.

OnyX Computer Cleaner Pros

  • Provides Maintenance tools for database rebuilding and running system scripts manually
  • Features all-round cleaning tools for removing cache, secure erasing trash, and managing fonts
  • Allows to set up automated scripts for maintenance, cleaning and rebuilding Mac
  • Bundles a range of additional macOS applications such as Screen Sharing, Network diagnostics and utility, Storage management etc.
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  • Displays explicit warning when attempting advanced actions
  • Logs all operations executed within the app
  • Requires no registration prior to use
  • Free to download and use

OnyX Computer Cleaner Cons

  • Challenging to figure out and use
  • Interface needs work

Using OnyX on Mac

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After installing OnyX you will need to give it permissions in the System Preferences> Security & Privacy> Accessibility settings.

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After allowing the app to control your computer, you will be able to use it to its fullest potential. It is fully safe, as OnyX has proven to be worthy of your trust. The application does a great job of guiding a user through the initial installation process which is a big plus.

While OnyX comes with an extremely high learning curve it is definitely worth it if you are serious about Mac maintenance. Even when only getting a hang of the app, the experience using it smooth. Granted, it takes significantly more time to get around and find what you need, then learn how to use it, but the result pays. The biggest tip to anyone striving to get better at OnyX is to read provided notes and warnings. It will keep you from making ignorant mistakes and give general insight on app’s capabilities.

OnyX’s Pricing

OnyX maintenance and optimization tool is available as a free download from the Titanium Software website. All versions of OnyX are donation-ware (freeware). There is a donation option, but donation is totally optional and the software is free to download, copy, and distribute (as long as no modifications are made prior to sharing or distributing), and free to use forever.

It is quite easy, isn't? How to download a youtube video to mac.

How to Uninstall OnyX

Follow these steps if you need to fully remove OnyX from your Mac:

  • Fully quit OnyX
  • Open Finder and go to Applications
  • Drag and drop OnyX app to Trash
  • In Finder, press Shift+cmd+G and go to ~/Library folder
  • Search for the items that contain OnyX or Titanium in item name in the following location:
    • ~/Library/Logs
    • ~/Library/Preferences
    • /Library/Saved Application State
    • /Library/Application Support
    • /var/folders
  • Select any matching files or folders, and move them to Trash

Empty your Trash bin and restart your Mac to complete the uninstallation process.

The Bottom Line

OnyX Computer Cleaner has a variety of tabs inside its app that allow you to make unique customizations to the way your Mac boots up, the way apps work, how screenshots are captured, and more. Tech savvy, experienced Mac users will find lots of ways to eliminate dialog boxes and button presses and truly customize the app. For less experienced users, OnyX is a simple yet powerful maintenance and optimization tool. It’s completely free and helps keep your Mac clean itself and running smoothly. Each action is clearly explained in detail, and the Help Guide offers any additional assistance you might need. OnyX Computer Cleaner lets you set your own checkpoints and parameters including, Dock, iTunes, and Spotlight. It fully cleans your files and system. For the price (free), it’s a great product!

A new Mac always seems to be lightning quick. But then it might slow down up to 17% when its disk is near full (confirmed by MacWorld in a test). And there we got a whole world of Mac optimization apps. Some of them are good enough that even Apple employees use them (Guy Kawasaki, for one). So here are some absolutely essential Mac optimizers to check in 2020.

These are top 3 optimizers that look most optimistic to us (sorry for the pun). We've chosen these among hundreds of others mentioned on Mac Forums.

RatingNameFeaturesInfo
1CleanMyMac X Includes tools for optimizing your Mac, securely deleting files, and scanning for malware.Link
2AVGQuick scan and deep cleaning of all kinds of junkLink
3OnyxAllows you to adjust parameters that would normally need to be set in TerminalLink

All three are aimed at basic Mac housekeeping. And now, let's dive into these options and then we'll analyze a few more relevant alternatives.

Best Mac Optimizer software reviewed

Made by independent macOS developer, MacPaw, this app tops our chart.

1. CleanMyMac X

This app, which is notarized by Apple, is absolutely gorgeous visually. But it also sports 49 tools to optimize a Mac in one app. It has a free version you can download and play around with.

Inside, you’ll find a full range of tools that will declutter your Mac, make it run faster, and even scan it for malware and remove whatever it finds. One of the great things about CleanMyMac X is that you choose how much control you take over what it removes.

In terms of Mac optimization, you can:

  • Free up RAM memory
  • Disable heavy memory consumers
  • Run Maintenance scripts

It’s worth checking, anyway if you want to improve your Mac’s performance.

2. AVG Cleaner

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AVG Cleaner has two functions — to find and remove “junk”’ files one you Mac and to identify duplicate files and make it easy to remove them. The files AVG Cleaner tracks down include cache files from web browsers, apps, photos, and videos; log files; download history; broken downloads; and Trash contents.

When you launch the app, you’ll see it has a clean, modern interface that gives you the option of scanning your Mac for files to clean, or scanning for duplicates. Once you’ve chosen the Disc Cleaner and the scan is complete, you can press a button to clean up the files it has found or view them in more detail and decide which to delete and which to keep. If you choose to scan for duplicates, AVG Cleaner will ask you which folders you want to scan and then show you what it found.

AVG Cleaner is free, l looks great, and works well. However, compared with CleanMyMac X, it lacks many features. These include a malware removal tool, secure file deletion, optimization tools and an app uninstaller.

3. Drive Genius

Drive Genius started out many years ago as a tool for monitoring the performance of your drive, warning you of any potential problems and allowing you to fix them. It has evolved into a tool for optimizing performance and cleaning up drives, as well as keeping it safe.

Some of its features, such as re-partition, rebuild, and de-fragment, don’t work on APFS drives, but the others do. Those other tools include a malware scanner and removal tool, a secure erase utility, and tools for finding and removing duplicate and large files. In addition to those, Drive Genius still has tools for identifying potential problems that could lead to drive failure and allows you to fix them.

It’s not as user-friendly as Sensei, and doesn’t include an application uninstaller and tools for removing login items and launch agents.

4. OnyX

Like most of the apps listed here, OnyX is more than just optimization software for your Mac. It also has a number of tools for cleaning your Mac. However, OnyX also does something that no other tool listed here does: it allows you to adjust settings on your Mac that are otherwise only available through the Terminal app. It’s more of a customizer for your macOS.

Whether you want to rebuild a database or index, or just changed the default location or file format for screenshots, you can do it in OnyX. In terms of optimization tools, OnyX can clean up system files and browser data, rebuild Spotlight and Launch Services databases, run maintenance scripts and clean up recent items lists.

It doesn’t have a secure file deletion tool or malware scanner, however. And it’s nowhere near as user friendly as tools we’ve described above. If you like playing around with settings and getting under the hood of your Mac, though, it’s a good choice.

5. macOS Manage Storage


Manage Storage is a feature that’s built into recent versions of macOS. To access it, click on the Apple menu, then About this Mac> Storage> Manage Storage.

When you do that you’ll see a list of categories on the left-hand side of the window that opens. At the top is Recommendations. This is where macOS helps you easily free up storage space by recommending what to get rid of. For example, it might recommend that you store files in iCloud and only keep recent ones on your Mac, or that you allow the OS to delete Apple TV downloads you’ve already watched.

The other categories cover things like Mail attachments, Garageband sound libraries, podcasts, and iOS backups. You just click on each section in turn and follow the advice in the window.

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Manage Storage is a very useful tool and can certainly help free up storage space. However, it is not a replacement for a tool like CleanMyMac X because there is no app uninstaller and there are no tools to remove junk files or optimize performance.

6. CCleaner

CCleaner is one of the oldest cleaner tools around, having been available on the Mac for nearly a decade and on Windows before that. It offers tools to get rid of junk files cluttering up your Mac, remove cookies, history files, and other web browser data, and disable login items and launch agents. It also has an app uninstaller, and the professional version offers real-time protection against potentially harmful files you may download.

Like most tools here, you can choose to follow its recommendations and remove files with just a few clicks, or review the files it finds and choose which to remove yourself.

CCleaner has many of the tools available in CleanMyMac X. However, it’s not as easy to use, in our opinion, thanks to its less friendly user interface. It also doesn’t have a tool to allow you to quickly see what files are occupying space on your Mac, like CleanMyMac X’s Space Lens, or a way of securely shredding sensitive files.

7. Disk Clean Pro

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Disk Clean Pro offers many of the same tools as the other cleaners here. You can use its automated utilities to quickly get rid of junk files, logs, crash reports and partial downloads. And you can also use it to identify and remove duplicate files, old files, large files and old downloads. There are also tools to remove browser files, aloud backups and mail downloads.

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Like CCleaner, however, its interface isn’t the friendliest. Also, there are no tools for scanning for malware, securely deleting files, or uninstalling apps.
Does Mac optimization involve cleaning?
Many of the tools above belong to the category of cleaners, so why place them here? To answer that, we should define “optimization” more clearly. If optimization means improving the performance, it does entail a bit of cleaning that is improving something by elimination. To optimize any computer, one should start with removing blockages, massive unwanted objects, and apps that eat up a lot of memory.

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There are lots of applications that can optimize your Mac’s performance and make it run more smoothly. Most of these apps are paid, but you can get away with a free version in some cases.

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We would rather pick CleanMyMac X for the sheer number of features and its looks but the choice is yours.