ER/Studio is the an industry-leading data modeling tool helping companies discover, document, and re-use data assets.
Cost / License
- Paid
- Proprietary
Platforms
- Windows
Open System Architect is described as '(OSA) is an application used for modelling a system. OSA currently supports data modelling (physical and logical) with UML in the works. The unique thing about OSA is that it is an Open Source product licensed under the General Public License (GPL)' and is an app. There are more than 10 alternatives to Open System Architect for Windows, Linux and Mac. The best Open System Architect alternative is MySQL Workbench, which is both free and Open Source. Other great apps like Open System Architect are pgModeler, SAP PowerDesigner, dbForge Studio for MySQL and SQL Power Architect.
ER/Studio is the an industry-leading data modeling tool helping companies discover, document, and re-use data assets.
PostgreSQL Maestro allows you to create, edit, copy, drop and dump all Postgres database objects. It is a PostgreSQL GUI admin tool working as a Postgres client for Windows.




DbDesigner is a web application which allows you to design your database schema without writing SQL.

