An ER diagram tool for visualizing databases and systems

Link and understand the different elements of your database and show how they interact with an ER diagram tool. Reduce complexity and visualize how your system entities connect and overlap, bringing agility to teams.

An image showing Miro's ER diagram tool for creating entity relationship diagrams

Over 70M+ users love Miro

An effective ER diagram tool for teams

Miro’s entity relationship diagram maker helps you to bring together different aspects of your systems, showing how different agents relate to one another. It’s the perfect tool to see how product, development, and business relationships take place within IT systems.

An image of a database designed with Miro's ER diagram maker

Why Miro is the best ER diagram maker

Quick and easy diagramming

Create an ER diagram in Diagramming mode to use our diagramming toolbar and other dedicated features. You can also use our Mermaid app integration to draw an ER diagram online in minutes using code or text. Save time when mapping systems relationships — and quickly digest how people, objects, places, and concepts are connected.

All you need in one shared space

Don’t waste time looking for information in different places and tools. Use our ERD creator to have a great overview of your system and a starting point for your database design improvements. With Miro's infinite canvas, draw concepts and solutions all in one place, keeping everyone in the loop.

No more back and forth

Say goodbye to context switching with Miro’s built-in ER diagram maker. Draw an ER diagram online without any friction, fetching your system information directly from your code. Collaborate with others by inviting them to your board, and have more time to discuss things that matter.

Iterate to innovate

Tag team members on the board to get instant feedback as you create your ER diagram. Miro’s collaborative features allow you and your team to iterate faster, accelerating your system mapping process.

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How to create an ER diagram with Miro

An image showing Miro's ERD diagram tool used for an E-commerce database


Set up your Miro board

Create a new Miro board and open the ER diagram template. Alternatively, open the Mermaid app to build an ER diagram from code.


Visualize entities

Identify your system entities and add them to the template by double-clicking on the text boxes. Using the Mermaid app? Select ‘ER diagram’ from the samples list and edit the code.


Visualize relationships

Use the connection lines in the template to show relationships between entities. Rearrange, duplicate, or remove them as needed. Similarly, edit the code in the Mermaid app as needed.


Share your work

Ready to share your ER diagram? Invite others to view and comment on your Miro board — or export your diagram and share the file with teammates.

An image showing Miro's ERD diagram tool used for an E-commerce database

Integrated with your favorite tools

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Loved by many teams

Customer stories

“Miro helps solve one of the major gaps in product design: how to manage tasks across product designers whose projects are in different tools.”

Jane Ashley

Head of Design at DocuSign

ER Diagram Tool FAQs

An ER diagram helps teams to better understand systems and visualize relationships between entities within these systems. If you want to show the relationships between product, development, and business processes in one place, create an ERD with Miro's entity relationship diagram tool.

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Miro’s all-in-one diagram maker removes the hassle of switching between diagramming and collaboration tools while helping you check off all the essential steps of your diagramming process.

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