ER Diagram Tool

Start from scratch or with a template to easily draw ER diagrams online. Lucidchart's free entity relationship diagram tool makes database modeling fast, efficient, and collaborative.

96% of the Fortune 500 choose Lucidchart.

Raytheon
BP
McKinsey
Loreal
Barclays
BMW

ERD Shape Library

We have all the shapes you’ll need to make a professional, industry-standard ERD. When you use Lucidchart's ER diagram software, your finished work will look just as it should.

Make an ERD