OnyX

3.8.6

3.8.6

See all Versions

Using it for a long time now. Very satisfied, never had any problems.Used different cleaning programs, paid and free before starting using Onyx. Recommended! and...........worth any donation.

Appears to clean my system efficiently without any visible data loss

Does what it says it does. I especially like the cache cleaning and the ability to turn ON seeing hidden items.

Great app. Always useful. Never failed me yet. Need another compatible Mac OS version just visit the Developer's site.

Works well for basic computer maintenance - would like more information on other features

Why do you think there are talented designers who produce attractive icons? So that some developers might mess up disgusting icons with their apps? We should ask ourselves questions about their deep motivations

This is the Golden Crown of the very best of the 10 best applications.

Nice absolutely love it

The very best out there!!! Donate, post praise, talk to others to use it!

Great app. Have been using it since Mountain Lion. Nicely updated with each new OS.

My go-to maintenance app, these days. Great work.

Great app. Have been using it since Mountain Lion days, at least. Keep up the good work. Have already donated twice.

Most useful app. I've been using it for quite some time, and always found it works faultlessly. One of the more useful, and free Mac apps out there.

Simply magnificent! Maintain your system and drive with no destruction of anything. This app is very intelligent, quick and secure. Will work on any version of Catalina currently available...DO DONATE for this app. Onyx is one powerful alternative to CleanMyMac that is "free" and has no issues with Catalina.

I have been using OnyX for years and wouldn't use anything else.

I've used this very useful app for many years, and found it to work very effectively and with no issues at all. The fact that it is free is an enormous bonus to all users. I'd call it one of the more useful third party apple utility apps that always works.

NOTE that v. 3.7.2 is Catalina only. Onyx is a must-have app that is very useful to get at all the little System tweaks that otherwise need delving into Terminal. There's even an easy to use manual for Terminal as long as you know what it all means.

Works as advertised. Nice to see a version for Catalina

I'm not sure if I'm using it right, what I did was open the maintenance tab, hit restore defaults, and hit run task. everything else I don't touch. Is this the right way to use it?

Absolutely essential.

Indispensable. Period.

forgot the stars - jjw1

We are so lucky to have Joel, the inventor of all versions of Onyx . He gives us a free system utility that works better than any other out there, including a lot of the paid ones. He asks for donations — https://www.titanium-software.fr/en/donate.html — and I do believe it is time for many of us to see that he's paid for the work he's done, for us, for Apple, and for the OS we all love. Thank you again, Joel. I know you're not a millionaire yet, but bless you for sharing your gifts!

Just started using this yesterday and so far I'm blown away! It drastically reduced the amount of space my "other" component was taking up in Mac storage. Performance seems better too. Great cleaner!

thinks

Using it for a long time now. Very satisfied, never had any problems.Used different cleaning programs, paid and free before starting using Onyx. Recommended! and...........worth any donation.

Essential. Practical, easy to access, space-saving. An application to always have on your hard drive.

Great app, helps when Mac's acting a little strangely. Non-destructive, safe routines. Easy to use. I recommend it to all whom I help with Mac problems. One thing, though: Titanium's website lists a newer version for Mojave, 3.6.7; it works fine. To all: donate! It's worth it, and they need it.

Continue to recommend this without any qualifications - it is simply the best app out there to do all the housekeeping etc Loads of options, you can configure what you want in terms of occasional use or set it up to do so so much for you. I just don't see how the adverse experiences claimed below could have occurred. Highly recommended - try it and I am sure you will continue to use the app for many years like so many others have!

Love, love, love Onyx. This app keeps my Mac running smooth and efficient. 5 million + downloads means they are doing something right.

With every OS update, I immediately apply Onyx. It maximizes the positives and reduces the negatives.

Onyx has been a consistent and reliable tool for many years. I can't recall a single instance of a buggy release in decades.

Noticing the details, care is taken. Easy to use and free.

awesome software to keep your mac fit and healthy

Great free utility.

The new version for Mojave is spectacular! Joel as usual has produced a powerful, simple to use and very friendly app to maintain you Mac. How he does it for free I have no idea! CleanMyMac developers need to look at OnyX and learn how to produce an app that even at NO CHARGE is fully able to verify your SSD! If you do not own or use this wonderful app, you have made a mistake that you need to correct! As I have said before, if you own OnyX and you have not made a donation you are committing a cruel and unusual act. Step up and support this amazing app and its fine developer!

The tool of tools for Mac maintenance! It is free, but if you don’t donate you should feel like a thief! Joel updates this app constantly. It was one of the very 1st if not the 1st to be able to verify an SSD with APFS formatting when it first appeared. At the moment not even the vaunted CleanMyMac can do this! Excellent collection of tools built in.

Downloaded it and and used the "maintenance" feature yesterday, the 1st of October, and the system performance improved; great program!

9/29/18 I had assumed that Apple Support Communities would be against Onyx, because they are against everything that doesn't come from Apple, and they like to argue too much for my taste. Anyway, I used Onyx WITHOUT THEIR PERMISSION, and it worked. It worked sensationally. I had had a couple of problems that they couldn't help me with, so I called Apple Care. They couldn't help me, either so, having nowhere else to go, I tried Onyx, and not only did those two problems disappear, but also another one that I had resigned myself to. Wonderful. Even better, Onyx fixed the problems even though I had no idea of how to use it. I just saw a command that said something like "Restore all defaults," so I chose it thinking that it could do no harm. THAT DID IT. I'll never know which settings had been causing the problems, but using the DEFAULT command brought my iMac back to its brand new condition. Thank you Onyx. I understand you need contributions. Well, you're getting mine within seconds. Thanks again.

Powerful app! It is able to verify an APFS formatted SSD when Drive Genius 5, TechTool, the new CleanMYMac and others cannot, and it is free! Other high priced developers complain that the APFS formatting is too complicated and they are having a hard time figuring it out...what gives? How is it that one small developer in France can do it and they cannot! This app and developer is fantastic! Support him! Donate for this app. Mojave version will be out soon.

Useful tool for every macOS user. Free it is .. dev should ask a small fee imo.

Works great! Doesn't mess things up while doing the standard maintenance function.

Highly recommended for general system/machine maintenance and troubleshooting. Long-time user, I install on every mac of mine (and of friends and colleagues). Set up for clearing caches, purging un-needed sys files etc etc. System-specific versions means no confusion as to what version to use on your machine.

This app works great!

When I opened the app and went to "Maintenance" it could not make Safari Version 11.1 (13605.1.33.1.4) quit before proceeding. On 28 Feb and 12 Mar 18, I had the same similar problem.

Very handy free app to handle/customize a lot of low-level macOS options. It does a good job also cleaning-up temporary system files. It does most of the things a lot of other highly priced apps do, you just need to know what you are doing.

Perfect all in one Mac utility for my must-have collection.

Cool app!

All in one tool I added to my must have collection. No drawbacks so far.

A classical must have.. Free!! Use and appreciate it from the very first version. Why doesn't Apple buy and integrate it in his OS ?

Nice tool.

Amazing functionality. Kudos to the developer for making it free.

zdv

Not entirely sure tools like these markedly improve performance, but it makes me feel better to run Onyx every once in a while. Gives me the same feeling of satisfaction as tidying up the lounge and clearing old receipts out of my wallet.

OnyX app 3.3.7: 11 Oct 17 Maintenance: When I open the app, the icon in the dock bounces several times. Does it need to do that? Maintenance: After executing it gives you a choice to shut down or restart. Is there a way after it restarts that the OnyxX app could open automatically? Does it have to go thru the hard drive verifying again? Cleaning: Recommend that tasks concerning SSD or Fusion drives be written in red, so they stand out better. Also, is there any way the app would stop further actions when an SSD or Fusion drive is detected? Cleaning: Is there any way that after a task is done, that you can shut down or restart only once, and not after each option?

The best, free + good working! Keeps my Mac running smooth!

still kicks ass, after more of one decade

The link here for Onyx v3.3.5 is not working. Use this URL instead: https://www.titanium-software.fr/download/1013/OnyX.dmg

Version 3.3.5 for High Sierra is now available from the dev's site. Just run it and found no problems.

awesome

Onyx is a critical piece of my troubleshooting arsenal. Between TechTool Pro, DiskWarrior and Onyx, I have yet to fail to recover a drive or laptop/desktop - and I seem to be helping a number of other, less-experienced users. Remarkable array of options in Onyx that allows excellent maintenance of your mac. Highly recommended for all users.