Application Ermodeller is a free CASE tool for data modelling which is built in Java. This tool supports conceptual and logical data modelling and in the final step, it allows to create physical model that is specific for particular DBMS.

Basic features:
Three levels of data modelling: Conceptual, Logical & Physical
Support of multiple DBMS
SQL generation to file or directly to database via JDBC
Reverse engineering from DB
Model validation

DeZign for Databases is an intuitive database design tool for developers and DBA's that can help you model, create and maintain databases. DeZign for Databases uses entity relationship diagrams (ERDs) to graphically design databases and automatically generates the most popular SQL and desktop databases.

Firebird Maestro is a powerful solution for the Firebird server administration and development. Key features include:
- database designer;
- complete data management tools with viewing, editing, grouping, sorting and filtering abilities and BLOB Viewer/Editor;
- Unicode/UTF8 support;
- handy SQL Editor with code folding, syntax highlighting, SQL formatter and multi-threading;
- visual query builder;
- comfortable access to the Firebird security features.

StarUML is an open source project to develop fast, flexible, extensible, featureful, and freely-available UML/MDA platform running on Win32 platform. The goal of the StarUML project is to build a software modeling tool

AmaterasERD is an Eclipse plug-in to draw ER diagram. AmaterasERD has following features:
* ER diagram graphical editing
* Import from existing database
* Generate DDL from diagram

Cradle is a multi-user, multi-project requirements management and systems engineering environment. It supports all aspects of requirements management including capture from external documents, change tracking and analysis. It supports the construction of analysis, architecture and design models. It supports test management, system verification and user acceptance. It links all of this information together into a traceable, searchable whole. Cradle is supported on Windows/UNIX/Linux. It has web-based and non-web-based UIs. An API is available for C/C++/VB/VBA.

erd translates a plain text description of a relational database schema to a graphical entity-relationship diagram. This utility takes a plain text description of entities, their attributes and the relationships between entities and produces a visual diagram modeling the description.

ASA Maestro is a high-quality Windows GUI admin tool for Sybase SQL Anywhere server management, control and development. Key features include:
- database designer;
- handy SQL editor with code folding, syntax highlighting, SQL formatter and multi-threading;
- visual query builder;
- Unicode/UTF8 support;
- complete data management tools with viewing, editing, grouping, sorting and filtering abilities and BLOB Viewer/Editor;

AnySQL Maestro is a unique tool for administering any database engine (SQL Server, Oracle, MySQL, MS Access, etc.) which is accessible via ODBC driver or OLE DB provider.

Define database tables, fields, references, and generate the database. When working with Database Architect, software developer defines database structure, drawing it directly in the program's window and generates the DB directly from the program