Advanced Mac users may have noticed that X11 is no longer bundled with OS X, and it’s also no longer available as a separate installation option through Developer Tools. Instead, to run X11 on OS X Mountain Lion (and later), you’ll want to download and install the free XQuartz system, which bundles all the necessary libraries and apps together that are needed to run a full X11 Windowing System per
![Run X11 in Mac OS X with XQuartz](https://cdn-ak-scissors.b.st-hatena.com/image/square/95f349dd6ff2dcd97c5ef80458156eb3c19fc016/height=288;version=1;width=512/https%3A%2F%2Fcdn.osxdaily.com%2Fwp-content%2Fuploads%2F2012%2F12%2Fx11-in-mac-os-x.jpg)