DBeaver - DBeaver - Universal Database Manager and SQL Client.
Diagramo - Diagramo is an online flowchart software - diagrams (create, edit and share)
DbVisualizer - DbVisualizer is the universal database tool for developers, DBAs and analysts.
Modelio - Modelio is an open source modeling tool supporting natively UML, BPMN and model exchange with XMI.
DataGrip - Tool for SQL and databases
UML Designer - UML Designer provides a set of common diagrams to work with UML 2.5 models.