Mac users interested in Erd program generally download:
SQLEditor is intended for editing or creating SQL databases. The application has a nice interface, in many ways different from those of other more technically-looking tools of the same type. I love being able to manage the whole database visually, with the possibility of adjusting the zoom level to the particular need.
DataArchitect is a powerful tool that provides ERD capability like PowerDesigner as well as the ability to graphically reverse engineer, create and modify a database through ODBC and perform advanced SQL functions.
Additional suggestions for Erd program by our robot:
Showing results for "erd" as the word program is considered too common
Free Mac OS X app that calculates spoke lengths for wire spoked wheels.
rim diameter (ERD), Flange