MySQL Workbench for Mac OS X is distributed as a DMG file. The file
version is the MySQL Workbench
Downloads are available at http://dev.mysql.com/downloads/tools/workbench/.
To install MySQL Workbench on Mac OS X, download the file. Double-click the downloaded file. You will be presented with the installation window.
Drag the MySQL Workbench icon onto the Applications icon as instructed. MySQL Workbench is now installed.
You can now launch MySQL Workbench from the Applications folder.