• Tip
  • FREEWARE product for Oracle users:
    Toad Extension for Eclipse. More information.
See Toad™ Data Modeler database design tool in action

Freeware Database Modeling Tool

Draw Entity Relationship Diagrams (ERD) and generate SQL scripts automatically

Create complex ER diagrams for various databases in just a few minutes! Toad™ Data Modeler supports Oracle 11g, MySQL 5.5, SQL Server 2012, PostgreSQL 9.2, SQLite, Teradata and other systems.
See the list of supported databases.

database design

Toad™ Data Modeler - database design tool

Toad Data Modeler enables developers, DBAs, and designers to create, maintain and document quality database designs and structures across various database platforms. Using the tool, you can make your database development process much easier.

Benefits of Toad™ Data Modeler 5

With Toad Data Modeler you can:
  • Reduce faults in development
  • Significantly improve your productivity
  • Visualize database structures and get better understanding of existing databases.
  • Verify your work automatically
  • Generate very detailed HTML or RTF reports
  • Keep existing database structures up-to-date
  • Work with existing database structures
  • Create databases faster

Design new database structures or reverse engineer existing databases !

When creating ERD, the program considers individual database options such as referential integrity, constraints, domains, triggers, stored procedures, functions, views etc. Moreover, the software allows you to:
Reverse engineering

What will you get?
  • World class telephone support and services with locations around the world
  • Upgrades to major releases (for those current on maintenance)
  • Future integration with Toad, the market-leading database development and administration tool for Oracle, DB2, SQL Server and MySQL
  • The security of working with a financially stable and growing vendor