OnyX
OnyX
3.9.6
4.3
0.0
OnyX free download for Mac

OnyX for Mac

07 April 2021

Maintenance and optimization tool.

What is OnyX for Mac

OnyX is a multifunction utility that you can use to verify the startup disk and the structure of its 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.

What's new in OnyX

Version 3.9.6:
  • The toolbar is now customizable
  • Added HEIC screen capture file type
  • Minor modifications made
  • Help updated and reindexed
OnyX for Mac Old Versions

Related articles

FAQ

What does Onyx for Mac do
OnyX is maintenance application that helps keep your Mac in tip top shape. It a multifaceted application that checks the health and structure of your Mac’s start-up disk. It is able to check the integrity of system files and take corrective action when issues are detected. It cleans cache files that slow your Mac over time, and cleans unwanted files and folders, rebuilds indexes and databases.
How to install Onyx on Mac
  1. Each version of macOS has a specific version of Onyx. Trying to use a non-compatible version with the wrong version of Onyx will result in the application not working correctly.
  2. Download the Onyx application version for your version of macOS.
  3. Look in your Downloads folder and locate the downloaded installation file, then run it by double clicking on it.
  4. Run through the installation steps.
  5. The application is now installed.
Is Onyx safe to use on Mac
Yes, Onyx is very safe to use on your Mac. It gives users an easy way to clean up their own Mac without needing to learn how to enter in complex commands or call in someone else to do it for you. You can clean up unwanted system files and keep your operating system in good working order to keep things running along smoothly.
How to clean Mac with Onyx
  1. Open the Onyx app by clicking on the installed Onyx icon.
  2. Once open, click on the Maintenance tab.
  3. Here you will be shown a list of terms under 3 categories: Rebuilding, Cleaning, Misc. options.
  4. Cleaning options are available to clean System, Applications, Internet and Log messages and reports.
  5. Select the items you want to clean, then click on ‘Run Tasks’.
How to use Onyx to make Mac faster
  1. Open the Onyx app by clicking on the installed Onyx icon.
  2. Once open, click on the Maintenance tab.
  3. Go to the Cleaning section and the Misc. options sections and select the appropriate options.
  4. Click on Run Tasks and allow the application to clear all the cache and log files that are slowing your Mac down.
  5. Allow the Tasks to finish and restart your Mac.
How to uninstall Onyx from Mac
  1. Make sure that you have closed Onyx completely.
  2. Click on the Finder in your Dock.
  3. Click on Applications in the Sidebar and find Onyx.
  4. Right click on Onyx and then select Move to Trash.
  5. Navigate to the Trash icon, right click on it and select Empty Trash.
  6. Onyx has now been uninstalled from your system.
Try our new feature and write a detailed review about OnyX. All reviews will be posted soon.

What customer like

Performance
Design
Security

What needs improvements

Regular updates

OnyX qualities

Value
5.0
Ease of use
5.0
Features
5.0
Reliability
5.0
Customer support
5.0
Write your thoughts in our old-fashioned comment
MacUpdate Comment Policy. We strongly recommend leaving comments, however comments with abusive words, bullying, personal attacks of any type will be moderated.
0.0
(0 Reviews of )
There are no reviews yet
Rachael74
Rachael74
Jun 2 2021
3.9.6
3.0
Jun 2 2021
3.0
Version: 3.9.6
Love this app. I have bought my Mac and the technician will recommend me to have this app. Great!
Weaztek
Weaztek
Apr 16 2021
3.9.6
5.0
Apr 16 2021
5.0
Version: 3.9.6
Fantastic freeware. One of my all time faves even!
battyattybasher
battyattybasher
Apr 9 2021
3.9.6
5.0
Apr 9 2021
5.0
Version: 3.9.6
Have been using it for years - works nicely, and has never borked my Mac (and I've owned quite a few different ones over the years.)
Sassyfrass
Sassyfrass
Apr 8 2021
3.9.6
0.0
Apr 8 2021
0.0
Version: 3.9.6
I love Onyx and have used it foreer! however the latest versions do not work on my mac. I have iosX 10.14.6, is there a version of onyx that is available for me to use? thanks Kristen Carr
slagterh
slagterh
Mar 18 2021
3.9.5
5.0
Mar 18 2021
5.0
Version: 3.9.5
I like it. Very good maintenence tool. I use it since i bought my Mac 5 years ago. Never had any regrets or complaints.Highly recommended!
cade1
cade1
Jan 7 2021
3.9.3
4.0
Jan 7 2021
4.0
Version: 3.9.3
good. but may want to go to developer website for updated versions; for example here Mojave is 3.5.7 but on dev site it is 3.6.8
Lightning
Lightning
Jan 3 2021
3.9.3
5.0
Jan 3 2021
5.0
Version: 3.9.3
I have been using for a long time along with another paid maintenance app. When the other app started charging full price for an upgrade I dropped them and only ue this. It is as good as it gets for its purpose.
vallee-blanche
vallee-blanche
Dec 17 2020
3.9.1
1.0
Dec 17 2020
1.0
Version: 3.9.1
For a simple interface package just wrapping a bunch of shell scripts this has some kind of unwarranted cult following by users who tend to think they are technical but are nothing of the sort. Get over yourselves.
ivryernest
ivryernest
Dec 15 2020
3.9.1
5.0
Dec 15 2020
5.0
Version: 3.9.1
La plus parfaite application de maintenance pour Mac. Et la plus agréable à utiliser. Merci !
beastmci101
beastmci101
Dec 10 2020
3.8.7
5.0
Dec 10 2020
5.0
Version: 3.8.7
Worked well, got rid of around 15-20 gbs on my computer. Highly reccomend.
rshepherd-1
rshepherd-1
Sep 6 2020
3.8.5
5.0
Sep 6 2020
5.0
Version: 3.8.5
Appears to clean my system efficiently without any visible data loss
Jeff-H-
Jeff-H-
Aug 25 2020
3.8.5
3.0
Aug 25 2020
3.0
Version: 3.8.5
I, like many others, have been using Onyx for years with no issues. It cannot be a coincidence that the last two times I used Onyx that my 2009 Macbook has gotten hosed. Spark, a great keyboard remapping utility has TOTALLY stopped working and requires to be totally wiped from my computer via AppCleaner. I will definitely be looking elsewhere for something other than Onyx. Sadly this will be the last time I deal with this app.
Andrew-K
Andrew-K
Jul 31 2020
3.8.4
5.0
Jul 31 2020
5.0
Version: 3.8.4
I've been using the various versions of Onyx since I don't know when. It is always reliable. And the application itself is so small. Some other developers could learn a thing or two about keeping the size of their programmes within decent limits. Well done, as always, Joel!
MyronV9060
MyronV9060
Jun 6 2020
3.8.3
5.0
Jun 6 2020
5.0
Version: 3.8.3
Does what it says it does. I especially like the cache cleaning and the ability to turn ON seeing hidden items.
SamHoss48
SamHoss48
Jun 2 2020
3.8.2
5.0
Jun 2 2020
5.0
Version: 3.8.2
Great app. Always useful. Never failed me yet. Need another compatible Mac OS version just visit the Developer's site.
slz50
slz50
May 11 2020
3.8.1
4.0
May 11 2020
4.0
Version: 3.8.1
Works well for basic computer maintenance - would like more information on other features
ivryernest
ivryernest
May 11 2020
3.8.1
5.0
May 11 2020
5.0
Version: 3.8.1
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
Graphic-Mac
Graphic-Mac
May 11 2020
3.8.1
5.0
May 11 2020
5.0
Version: 3.8.1
Dropping 5 stars to offset bone-headed reviewers who give it one star because they don't like the color of the icon.
Bruceg
Bruceg
Apr 26 2020
3.8.0
0.0
Apr 26 2020
0.0
Version: 3.8.0
I can't rate OnyX because the latest version is for Catalina and I'm still on Mojave.
zlazkow
zlazkow
Apr 20 2020
3.8.0
5.0
Apr 20 2020
5.0
Version: 3.8.0
This is the Golden Crown of the very best of the 10 best applications.
sanchower
sanchower
Apr 8 2020
3.7.9
5.0
Apr 8 2020
5.0
Version: 3.7.9
Nice absolutely love it
DragonMaster
DragonMaster
Mar 14 2020
3.7.8
5.0
Mar 14 2020
5.0
Version: 3.7.8
The very best out there!!! Donate, post praise, talk to others to use it!
mbarber329-1
mbarber329-1
Mar 13 2020
3.7.8
5.0
Mar 13 2020
5.0
Version: 3.7.8
Great app. Have been using it since Mountain Lion. Nicely updated with each new OS.
bazlane
bazlane
Mar 7 2020
3.7.7
5.0
Mar 7 2020
5.0
Version: 3.7.7
My go-to maintenance app, these days. Great work.
dilipzsg
dilipzsg
Feb 25 2020
3.7.6
5.0
Feb 25 2020
5.0
Version: 3.7.6
Great app. Have been using it since Mountain Lion days, at least. Keep up the good work. Have already donated twice.
Mac5
Mac5
Feb 22 2020
3.7.4
0.0
Feb 22 2020
0.0
Version: 3.7.4
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.
lforesi
lforesi
Feb 15 2020
3.7.3
3.0
Feb 15 2020
3.0
Version: 3.7.3
Some kind of introduction would be apreciated.
Relayer10
Relayer10
Feb 6 2020
3.7.3
2.0
Feb 6 2020
2.0
Version: 3.7.3
I immediately uninstalled it. When I opened and began process to use, the MacKeepers ransomware icon came up. To get to the Onyx app, Mackeepers kept moving in front, trying to force me to use it. I needed Apple techs to get rid of Mackeepers before, so instead of risking damage, I deleted OnyX by using Clean my Mac X Uninstaller. I'd love to find alternative to Clean my Mac...but taking no chances that OnyX is somehow connected to MacKeepers ransomware, because it's not on App Store
Brooklyn-Al
Brooklyn-Al
Jan 27 2020
3.7.3
5.0
Jan 27 2020
5.0
Version: 3.7.3
Where are the Onyx logs stored on a Mac?
DragonMaster
DragonMaster
Jan 25 2020
3.7.2
5.0
Jan 25 2020
5.0
Version: 3.7.2
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.
huggyfg-1
huggyfg-1
Jan 19 2020
3.7.2
5.0
Jan 19 2020
5.0
Version: 3.7.2
I have been using OnyX for years and wouldn't use anything else.
Mac5
Mac5
Jan 5 2020
3.7.2
0.0
Jan 5 2020
0.0
Version: 3.7.2
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.
Macmuser
Macmuser
Jan 3 2020
3.7.2
5.0
Jan 3 2020
5.0
Version: 3.7.2
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.
NedC
NedC
Dec 24 2019
3.7.1
5.0
Dec 24 2019
5.0
Version: 3.7.1
Works as advertised. Nice to see a version for Catalina
michael830713
michael830713
Dec 21 2019
3.7.1
5.0
Dec 21 2019
5.0
Version: 3.7.1
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?
dickmad1
dickmad1
Dec 16 2019
3.7.1
0.0
Dec 16 2019
0.0
Version: 3.7.1
Will it run on Mac's Catalina (10.15.2)?
Mac3blade
Mac3blade
Dec 14 2019
3.7.1
5.0
Dec 14 2019
5.0
Version: 3.7.1
Absolutely essential.
Ca
Ca
Dec 13 2019
3.7.1
5.0
Dec 13 2019
5.0
Version: 3.7.1
Indispensable. Period.
jjw1
jjw1
Nov 23 2019
3.7.0
5.0
Nov 23 2019
5.0
Version: 3.7.0
forgot the stars - jjw1
jjw1
jjw1
Nov 23 2019
3.7.0
5.0
Nov 23 2019
5.0
Version: 3.7.0
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!
mistycarbonara
mistycarbonara
Nov 19 2019
3.7.0
5.0
Nov 19 2019
5.0
Version: 3.7.0
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!
abumasoud2009
abumasoud2009
Nov 14 2019
3.7.0
5.0
Nov 14 2019
5.0
Version: 3.7.0
thinks
DragonMaster
DragonMaster
Oct 28 2019
3.7.0
5.0
Oct 28 2019
5.0
Version: 3.7.0
It is amazing what a small developer can do and what huge multi-national companies cannot. This app is a remarkable tribute to Joel Berre the developer!
slagterh
slagterh
Oct 16 2019
3.6.8
5.0
Oct 16 2019
5.0
Version: 3.6.8
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.
Ptk3
Ptk3
Aug 29 2019
3.6.6
5.0
Aug 29 2019
5.0
Version: 3.6.6
Essential. Practical, easy to access, space-saving. An application to always have on your hard drive.
gbdoc
gbdoc
Aug 29 2019
3.6.6
5.0
Aug 29 2019
5.0
Version: 3.6.6
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.
hmfwic47
hmfwic47
Aug 29 2019
3.6.6
1.0
Aug 29 2019
1.0
Version: 3.6.6
Problem with the new app. After going to the "Full Disk Access..." and following the instructions I clicked OK. The "Full Disk..." window closed. Onyx quit. I reopened Onyx again and got the "Full Disk..." window. Clicked ok. For some reason, Onyx never opens like it used to. Also, no mention, if you need to reopen the System Preferences Security & Privacy to close the lock. I am using macOS Mojave 10.4.6 supplemental update.
Eric•Woehler
Eric•Woehler
Jun 4 2019
3.6.3
5.0
Jun 4 2019
5.0
Version: 3.6.3
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!
Lesoth0
Lesoth0
Jun 3 2019
3.6.3
5.0
Jun 3 2019
5.0
Version: 3.6.3
The one thing I wish Onyx did, as an option, would be to make the Users > LIBRARY folder > visible at all times. Drives me nuts have to go up to GO, or keyboard combination to make it visible, or worse, to try and find something within Time Machine back-up, without launching Migration Assistant.
Mcr
Mcr
Jun 3 2019
3.6.3
5.0
Jun 3 2019
5.0
Version: 3.6.3
I logged in specifically just to say the new option in version 3.6.3 to turn off warning about running 32-bit apps is fantastic. That warning just confuses and intimidates casual and non-geeky users, and gets them all worked up that something is 'wrong'; resulting in phone calls and texts to yours truly.
Maddogiam66
Maddogiam66
May 20 2019
3.6.2
5.0
May 20 2019
5.0
Version: 3.6.2
Love, love, love Onyx. This app keeps my Mac running smooth and efficient. 5 million + downloads means they are doing something right.
iMacWare
iMacWare
Apr 24 2019
3.6.1
3.0
Apr 24 2019
3.0
Version: 3.6.1
Before using this, I would honestly at least try Clean My Mac X. (Create a Time Machine backup or CCC backup first.) Onyx has ruined many Mac's of mine.
Macfool
Macfool
Apr 16 2019
3.6.0
5.0
Apr 16 2019
5.0
Version: 3.6.0
The essential Onyx is at v.3.6.0 with v.3.6.1 almost out of beta..
Bob Jacobson
Bob Jacobson
Mar 24 2019
3.5.9
5.0
Mar 24 2019
5.0
Version: 3.5.9
With every OS update, I immediately apply Onyx. It maximizes the positives and reduces the negatives.
tooloud
tooloud
Feb 20 2019
3.5.8
5.0
Feb 20 2019
5.0
Version: 3.5.8
Onyx has been a consistent and reliable tool for many years. I can't recall a single instance of a buggy release in decades.
hmfwic47
hmfwic47
Feb 20 2019
3.5.8
1.0
Feb 20 2019
1.0
Version: 3.5.8
Maintenance 2.5.0, 20 Feb 19 and OnyX 3.5.8, 20 Feb 19, have been released. They are both made by Titanium Software. I opened both apps and looked at their startup screens. OnyX has 4 areas (multifunction utility) to choose from. Maintenance has 1. Both are the same. I can’t see having the Maintenance app as they are both FREE.
BodyByEthan
BodyByEthan
Feb 3 2019
3.4.9
5.0
Feb 3 2019
5.0
Version: 3.4.9
I love this app! just make sure you create a back up prior to using it. sometimes it can get a little wacky
optomist
optomist
Jan 6 2019
3.5.5
5.0
Jan 6 2019
5.0
Version: 3.5.5
Noticing the details, care is taken. Easy to use and free.
RogerKatz
RogerKatz
Dec 23 2018
3.5.4
0.0
Dec 23 2018
0.0
Version: 3.5.4
This MacUpdate webpage incorrectly says version 3.5.4 is for High Sierra, whereas it is for Mojave. Version 3.4.9, which downloads here, is current for High Sierra.
DenisS6377
DenisS6377
Dec 13 2018
3.4.9
5.0
Dec 13 2018
5.0
Version: 3.4.9
awesome software to keep your mac fit and healthy
TVieceli
TVieceli
Dec 4 2018
3.5.3
3.0
Dec 4 2018
3.0
Version: 3.5.3
Great free utility.
DragonMaster
DragonMaster
Nov 25 2018
3.4.9
5.0
Nov 25 2018
5.0
Version: 3.4.9
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!
Jpwgibson
Jpwgibson
Nov 10 2018
3.5.2
2.0
Nov 10 2018
2.0
Version: 3.5.2
I'm certainly thankful for Joel for having provided such a valuable tool for many years. But, unfortunately, the latest version broke my Firefox bookmarks (and I had lots of them).

Most annoying, is that they are now non-deletable.

Use with caution.
SimonM5530
SimonM5530
Oct 30 2018
3.5.1
3.0
Oct 30 2018
3.0
Version: 3.5.1
I bought Onyx (Version 3.1.2 (23696)from the App Store to clean up my MacBook Pro (mid 2012 running MacOSMojave Vers 10.14) The programme did the clean up well enough but continually dropped out and I spent as much time restarting the cleaner as doing the cleanup! Any thoughts on why the unexplained closure of the app happens so often?
DragonMaster
DragonMaster
Oct 8 2018
3.5.0
5.0
Oct 8 2018
5.0
Version: 3.5.0
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.
Brooklyn-Al
Brooklyn-Al
Oct 2 2018
3.5.0
5.0
Oct 2 2018
5.0
Version: 3.5.0
Downloaded it and and used the "maintenance" feature yesterday, the 1st of October, and the system performance improved; great program!
chasjunk
chasjunk
Oct 1 2018
3.4.9
0.0
Oct 1 2018
0.0
Version: 3.4.9
Version 3.5.0 (specifically for macOS 10.14 Mojave) appears to now be available from the developer's website directly. I assume MU will update this listing shortly.
Niku1000
Niku1000
Sep 29 2018
3.4.9
5.0
Sep 29 2018
5.0
Version: 3.4.9
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.
DragonMaster
DragonMaster
Sep 27 2018
3.4.9
5.0
Sep 27 2018
5.0
Version: 3.4.9
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.
hmfwic47
hmfwic47
Sep 24 2018
3.4.9
1.0
Sep 24 2018
1.0
Version: 3.4.9
It does not run under Mojave 10.14. It asks for High Sierra.
Max-G
Max-G
Aug 23 2018
3.4.7
0.0
Aug 23 2018
0.0
Version: 3.4.7
Used it on my Mac for years without hickups. Now v.3.4.7 hangs shortly after starting up the maintenance-function, requiring forced restart (MBP, High Sierra, SSD, APFS).
DJSquint
DJSquint
Aug 2 2018
3.4.6
5.0
Aug 2 2018
5.0
Version: 3.4.6
Useful tool for every macOS user. Free it is .. dev should ask a small fee imo.
crisderaud
crisderaud
Jul 31 2018
3.4.6
5.0
Jul 31 2018
5.0
Version: 3.4.6
Works great! Doesn't mess things up while doing the standard maintenance function.
GeogProf
GeogProf
Jul 27 2018
3.4.5
5.0
Jul 27 2018
5.0
Version: 3.4.5
STILL a great app. Been using it for many years. I would love it if the developer could add a new feature to the Parameters section. I have a 2015 15” MacBook Pro with a 2.8 GHz Core i7 processor (model #MacBookPro11,5) running macOS 10.13.6. Quite frequently when I'm using the trackpad, when I’m trying to click-and-hold or double-click and hold to highlight some text or a file name, instead the Dictionary is activated. This is very annoying. I have not been able to find a preference to turn it off, so it would be great if OnyX offered such a feature. Thanks, and kudos to Titanium Software for all they do for us.
knield15
knield15
Jul 10 2018
3.4.5
2.0
Jul 10 2018
2.0
Version: 3.4.5
Onyx 3.4.5 isn't working with MacOS High Sierra 10.13.5
bjboydell
bjboydell
Jun 11 2018
3.4.5
0.0
Jun 11 2018
0.0
Version: 3.4.5
Is OnyX the best app to use or is there a better one in its field for the price and functionality?
Eric•Woehler
Eric•Woehler
Jun 11 2018
3.4.5
5.0
Jun 11 2018
5.0
Version: 3.4.5
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.
jack2001
jack2001
May 16 2018
3.4.4
2.0
May 16 2018
2.0
Version: 3.4.4
è vero che è gratuita ma per una seria pulizia e ottimizzazione bisogna perderci troppo tempo e bisogna stare molto attenti a quello che si fa
mayymoton
mayymoton
May 14 2018
3.4.4
4.0
May 14 2018
4.0
Version: 3.4.4
This app works great!
hmfwic47
hmfwic47
Apr 24 2018
3.4.4
1.0
Apr 24 2018
1.0
Version: 3.4.4
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.
shiyleymilbuyn
shiyleymilbuyn
Apr 24 2018
3.4.4
4.5
Apr 24 2018
4.5
Version: 3.4.4
Its a good app. Helps me a lot with my files.Good job for this!
distreszed
distreszed
Apr 11 2018
3.4.3
5.0
Apr 11 2018
5.0
Version: 3.4.3
last two times I used Onyx (High Sierra) it got stuck on verifying disk. I had to force shutdown system, re-run Onyx and then everything went ok. I'm using it for 15 years and this is the first time I experienced any issues with it.
Andreore
Andreore
Mar 15 2018
3.4.3
5.0
Mar 15 2018
5.0
Version: 3.4.3
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.
James Bl.
James Bl.
Feb 21 2018
3.4.2
4.5
Feb 21 2018
4.5
Version: 3.4.2
Perfect all in one Mac utility for my must-have collection.
petro-semenyuk13
petro-semenyuk13
Feb 14 2018
3.4.2
4.5
Feb 14 2018
4.5
Version: 3.4.2
Cool app!
morrisenco
morrisenco
Feb 13 2018
3.4.2
4.5
Feb 13 2018
4.5
Version: 3.4.2
All in one tool I added to my must have collection. No drawbacks so far.
vlad-heger
vlad-heger
Jan 31 2018
3.4.2
0.0
Jan 31 2018
0.0
Version: 3.4.2
I just downloaded this app with high hopes and when I try to open it nothing happens. I am a using OSX 10.12.16 How can I resolve this?
Phylo
Phylo
Jan 27 2018
3.4.2
5.0
Jan 27 2018
5.0
Version: 3.4.2
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 ?
nikabuz
nikabuz
Jan 27 2018
3.4.2
4.0
Jan 27 2018
4.0
Version: 3.4.2
I've used Onyx for years on my Macs and it works great to clean the system. My only complaint is when you open the app it always asks to check the hard drive, etc.

I recently upgraded my Mac OS to High Sierra and it won't install the new version. I can't open the dmg file.
So is Apple trying to block this app!?
Liselotte
Liselotte
Jan 26 2018
3.4.2
0.0
Jan 26 2018
0.0
Version: 3.4.2
Nice tool.
jhensley
jhensley
Jan 25 2018
3.4.1
5.0
Jan 25 2018
5.0
Version: 3.4.1
Amazing functionality. Kudos to the developer for making it free.
jnsimpson88-1
jnsimpson88-1
Jan 16 2018
3.4.1
4.5
Jan 16 2018
4.5
Version: 3.4.1
zdv
CrèmeBrulée
CrèmeBrulée
Jan 9 2018
3.4.1
4.0
Jan 9 2018
4.0
Version: 3.4.1
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.
Barry5p
Barry5p
Nov 1 2017
3.3.8
5.0
Nov 1 2017
5.0
Version: 3.3.8
Excellent maintenance tool. I recently installed MacOs 10.13.1 on an unsupported Mac Pro 3,1 and Safari, Mail and Updates would not connect to the Internet. After running OnyX in "Automation" it fixed everything.
See: https://forums.macrumors.com/threads/macos-high-sierra-10-13-unsupported-macs-thread.2048478/page-89
hmfwic47
hmfwic47
Oct 18 2017
3.3.7
1.0
Oct 18 2017
1.0
Version: 3.3.7
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?
Raven-
Raven-
Oct 16 2017
3.3.7
5.0
Oct 16 2017
5.0
Version: 3.3.7
The best, free + good working! Keeps my Mac running smooth!
Jessicajazz
Jessicajazz
Oct 10 2017
3.3.6
5.0
Oct 10 2017
5.0
Version: 3.3.6
I just ran it on High Sierra and everything looks good and works well. In all these years using Onyx, Joel has never asked for a penny, but he does have a donation page at his web site, https://www.titanium-software.fr/en/donate.html and after so many years of keeping my Mac Pro running smoothly, this altruistic Frenchman has earned my trust many times over.
distreszed
distreszed
Oct 9 2017
3.3.6
5.0
Oct 9 2017
5.0
Version: 3.3.6
still kicks ass, after more of one decade
IngeMortier
IngeMortier
Oct 8 2017
3.3.5
0.0
Oct 8 2017
0.0
Version: 3.3.5
This new version isn't codesigned. I can only start it by using the right-click menu 'open'.
Saintfu
Saintfu
Oct 8 2017
3.3.5
0.0
Oct 8 2017
0.0
Version: 3.3.5
It would seem that Onyx is unable to check the structure of the disk on APFS volumes, since APFS doesn’t use journaling.
Free
4.3
0.0
App requirements: 
  • Intel 64
  • macOS 11.1.0 or later
License: 
FreeAbsolutely Free

Downloaded & Installed 5,135,751 times

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