DbVisualizer is a platform independent tool aimed to simplify database development and management for database administrators and developers. It's a very cool tool (can even draw dependency graphs based on the schema and foreign keys).
Free, personal use versions are available from their website. Download and install the software. The following scheme works for their versions 6.1.
After starting DbVisualizer for the first time, it will load its default
welcome screen and starts the wizard to select database driver. Cancel
this wizard and open the Driver Manager, using the menu Tools -> Driver
Manager In the Driver Manager add a new Driver Type using Driver ->
Create Driver the name of the driver in the Name field, e.g.
MonetDB. Type the URL format for the driver:
jdbc:monetdb://hostname/database. In the Driver File Paths box,
follow the directions to load a JAR file that contains the JDBC driver.
Use the MonetDB JDBC driver that came with your distribution, typically
installed in /share/MonetDB/lib/monetdb-X.Y-jdbc.jar.
After adding the new Type, the window should list the driver class nl.cwi.monetdb.jdbc.MonetDriver and automatically fills it in in the Driver Class field. Close the Driver Manager window.
From the menu select Database -> Create Database Connection. A pop-up
dialog will try to pursue you to use the wizard. You know better so,
click "No". Fill in the name for the connection in the Alias field,
e.g. MonetDB. Select the monetdb driver from the list. Copy the default
URL by clicking on the "URL Format: ..." text field and change it to
reflect the right hostname (usually localhost will do). Fill in the
default userid and password (monetdb). Press the "Connect" button.
It will report the database being used and the JDBC driver in use. In
the left pane the monetdb database now becomes available from browsing.