Install Xquartz [verified] «DELUXE · 2026»

Print the environment variable to verify the display path is set: echo $DISPLAY Use code with caution.

Use scientific computing tools such as MATLAB, GNU Octave, or R with X11 graphics windows. install xquartz

Open the application (found in Applications > Utilities ). Verify Homebrew is updated by running: brew update Use code with caution. Install XQuartz using the cask command: brew install --cask xquartz Use code with caution. Enter your system password when prompted. Log out of macOS and log back in to finalize the setup. Verifying the Installation Print the environment variable to verify the display

This document outlines the procedure for installing XQuartz (formerly X11.app) on Apple macOS operating systems. As Apple has deprecated the native X11 subsystem in favor of third-party implementations, XQuartz serves as the essential bridge for running graphical Unix/Linux applications (X11 clients) on a Mac desktop. This paper covers the acquisition, installation, post-installation configuration, and troubleshooting of the XQuartz environment. Verify Homebrew is updated by running: brew update

is an open-source version of the X.Org X Window System that runs on macOS. It allows users to run applications that utilize X11 for graphical output, such as:

XQuartz remains a vital component for the interoperability of macOS and the Unix ecosystem. By following the steps outlined in this paper—specifically the critical logout/login step—users can successfully integrate X11 capabilities into their workflow, enabling remote graphical management and legacy application support.