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.

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96% of the Fortune 500 trust Lucidchart to keep teams on the same page.

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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.

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Conceptual Models

Use Lucidchart to create entity-relationship diagrams powerfully and efficiently. Get started with our basic naming and shape conventions, including entities, relationships, and attributes. Then convey cardinality constraints with simple formatting of shapes and arrows.

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Instant collaboration

Lucidchart's real-time collaboration means zero downtime—no more wondering which member of your team has the working copy. Your documents are stored safely in the cloud and available whenever you need them. With in-editor chats, comments, and presence, each member of your team will be on the same page.

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Ease of use

Some ER diagram tools are clunky and hard to use. With Lucidchart, simply open the ER diagram library to begin dragging and dropping shapes. You'll win praises from your team for migrating to the cloud, saving money, and enabling collaboration. Now you can work any time, anywhere, on any device that supports HTML5.

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Feature Highlights

You can start making your ERD now with Lucidchart. We make diagramming intuitive and fun.

  • Lucid Features

    Intuitive

    When you open a new document in Lucidchart, you have instant access to a dynamic toolbox. Our clean, inviting interface takes the complexity out of diagramming. In just minutes you’ll have a professional ERD that’s ready to share.
  • Lucid Features

    Visio import/export

    If you need to import some of your old files or collaborate with a co-worker who’s using Microsoft Visio, use Lucidchart’s import and export functions to put everything in the right place. We do the work for you!
  • Lucid Features

    Fully integrated

    Lucidchart is fully integrated with Google Apps, so you can quickly open the application from your Google environment. Take advantage of the integrations with JIRA and Confluence to streamline your workflows.
  • Lucid Features

    Publish and share

    Our users agree: it’s easy to make a great-looking diagram in Lucidchart. We also make it simple to showcase your work. Download to standard file formats or embed your ERDs in any HTML webpage.
Make an ERD

More examples

Flowcharts

Flowcharts

Org Charts

Org Charts

Process Maps

Process Maps

ER Diagrams

ER Diagrams

Network Diagrams

Network Diagrams

And More

And More