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JackOSX (the Jack Audio Connection Kit for OS X) is a low-latency audio server, written originally for the GNU/Linux operating system, and now with OS X support. It can connect any number of different applications to a single hardware audio device; it also allows applications to send and receive audio to and from one another.

Jack is different from other audio server efforts in that it has been designed from the ground up to be suitable for professional audio work. This means that it focuses on two key areas: synchronous execution of more...

What's New

Version 0.90b32: Release notes were unavailable when this listing was updated.


OS X 10.6 or later

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JackOSX User Discussion

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Cowicide Member IconComment+1131

How does this compare in latency you get with Airfoil?

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Version 0.89
Libertyforall1776 Member IconComment+1130

Please add AirPlay support please, so I can make better use of my iOS AppleTV! Thanks!

Reply1 reply
Version 0.87

Neutrino can send to AirPlay devices...
Now I'm looking into inserting a VST plugin just BEFORE the Mac's Audio Output whichever application sends audio to the Mac designated Audio Output... In this respect the "HijJack" concept suggest it .... still looking

Espiridion Member IconReview+1147

Newest release:
"April 25, 2011 - Released updated version 0.88, which addes support for a Jack OS X / CoreMIDI bridge. The Jackdmp server has also been updated to the latest version."

The developers still offer PPC compatibility. Thanks.

I tried it a long time ago, did not understand it, and removed it. Later on I began using Ardour and decided to learn more about JackOSX. It's an amazing piece of software. As I type, I have iTunes routed into DSP-Quattro, where I added some AU plugins. This allows me to truly enhance my listening experience in a way that's specific to my speakers, headphones, and room, while taking advantage of software I already own.
Of course, this is just a simple example of what can be achieved with the help of JackOSX. I could also route audio from a Digital Audio Workstation (DAW) into a different application, or get the audio from an application into the DAW.
There are many possibilities with this one. Great stuff!

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Version 0.87
Pizzacake Member IconReview+43

I was having problems with latency using soundflower with Mixxx so I installed JackOSX, after a restart I tried to run the JACK server but it wouldn't start. So I tried the usual fix which is to log into an administrator account and try running the JACK server and it started running fine. Back into a standard account and JACK server now starts up every time, so first time run in an Admin account.

Goodbye latency issues :)

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Version 0.84
Musubana Member IconComment+38

In these days of tabloids, JACKOSX may be a potentially troublesome name. B-)

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Version 0.83
Mrglsmrc Member IconComment+76

the 64bit package for snow leopard is no good.
the unzipped package won't open because the BOM file is missing from it.
you should skip this download until you are notified of a fix!

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Version 0.83
NaOH Member IconComment+133

Just a quick note about version 0.81 of JackOSX.

It seems to have a bug which causes coreaudiod to constantly eat up about 30% of the CPU capacity of my MacBook Pro even when Jack isn't running.

The behaviour disappeared as soon as I uninstalled JackOSX.

If you are experiencing this particular issue, it may be worth while rolling back to JackOSX 0.80, as that version didn't exhibit this behaviour on my system.

I'm running Mac OS X 10.5.6 on a 2.6GHz MacBook Pro Core2Duo.

Reply1 reply
Version 0.81

Can you *please* report this problem on JackOSX group : http://groups.yahoo.com/group/jackosx/ ?

Bugs do not solve by the the "power of god" only... ((-:

Bill Clinton Member IconReview+44
Bill Clinton

This is an amazing utility for connecting audio applications. I can't believe that it exists at all, let alone that it's free.

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Version 0.81
Anonymous Member IconReview

Great software, but two quibbles: NetJack settings aren't saved as part of the studio setup, and the router isn't exactly the most intuitive interface ever (its too easy to accidentally double-click a port and create an unwanted routing).

Otherwise, an indispensable tool, especially if you have two or more computers (and don't want to use GarageBand or Logic).

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Version 0.71
Anonymous Member IconReview

Can't help but commenting, there are definitely different 'sizes' of infinities; googling 'countable uncountable' will probably get you to the right directions.

There are also sets that are the same 'size' infinity, but in another practical sense, different sizes. For instance, you might have an algorithm that works for all integer multiples of one million (a countably infinite number) and another one that works for all integers (same countable infinity). Still, the latter set contains the previous set and in that sense does 'expand' the number of items...

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Version 0.71
Anonymous Member Icon

But as the Spelling Fairy would say, "Who gives a fick?"


And I can't help but add that from a buddhist perspective, at least, 'integer' and 'infinite' are just mutually augmentative concepts - we have this idea of 'separate things' and of a 'finite or infinite number of them', but they're just conventions for describing an experience - language is just a modelling tool, and a model is just a better or worse attempt to describe experience.
Anyway, you could say that adding enhancements expands the *realised* number of limitless possibilities for this app if you want to stay picky ;)

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> 5 4


Current Version (0.x)


Downloads 29,581
Version Downloads 563
License Free
Date 23 May 2014
Platform Intel 64 / OS X / Intel 32
Price Free
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