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JackMate for Mac

Native menu bar app for managing the JACK audio server.

By zinc75. Free and open source, MIT licence.

Get it with OpenDMG View source on GitHub

JackMate at a glance

Version
2.1.1
Released
29 October 2026
Download size
9.6 MB
Works on
Apple silicon and Intel
Licence
MIT
Category
Audio and Music
Developer
zinc75
GitHub stars
6

About JackMate

Native macOS app for managing the JACK audio server : Start, configure, and patch your clients in a few clicks.

Screenshots

JackMate screenshot 1

How to install JackMate on a Mac

  1. Get OpenDMG. It is a free app store for open source Mac apps. Download OpenDMG.
  2. Search for JackMate and press Get. OpenDMG downloads version 2.1.1 from zinc75's own GitHub release.
  3. Open it. The download is checked against its SHA-256 fingerprint and its signature is checked on your Mac before it lands in Applications.

Updates to JackMate show up in OpenDMG and install with one button. No account is needed.

Prefer to do it by hand? The developer's file is on GitHub: JackMate-2.1.1-Installer.dmg (9.6 MB).

What is new in JackMate 2.1.1

## [2.1.1] · 2026-10-29

Fix release: stopping Jack no longer freezes the app, and MIDI (CoreMIDI) is available again as an experimental option.

### Fixed
- **Stopping Jack**: if the server does not quit by itself (the CoreMIDI driver with JACK 1.9.22, [jack2#1027](https://github.com/jackaudio/jack2/issues/1027)), JackMate forces it after 3 s instead of staying stuck. The "stopped" state is only shown once the process has really exited.
- **Frozen interface**: the patchbay's Jack client is no longer opened on the main thread, so a server that stops answering can no longer freeze the app. No reconnection is attempted while Jack is being stopped.
- **Quit and stop Jack** waits for Jack to be really stopped before closing the app.

### Added
- **Waiting window** while Jack is being stopped (closing clients, stopping, forced stop).
- **MIDI (CoreMIDI) option re-enabled**, as experimental: with JACK 1.9.22 stopping Jack takes a few seconds longer, and the MIDI ports are the ones present when Jack starts. A fix is proposed upstream ([jack2#1028](https://github.com/jackaudio/jack2/pull/1028)).
- **`system_midi` client**: keyboard icon and amber colour in the patchbay, with an adapted inspection card (number of inputs and outputs).

### Improved
- MIDI cables and ports in amber (instead of purple), CV in pink; the patchbay legend only lists "CV" when the graph has a CV port.
…

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