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Map systems connections with an ER diagram tool

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.

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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.

Why Miro is the best ER diagram tool

Quick and easy diagramming

With the Mermaid app integration, draw an ER diagram online in minutes. Select the app and create an ERD directly from your code or text. Save time and effort when mapping your systems relationships and quickly understand 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.

Have less 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.

Related templates

Understand how the elements of your database interact with each other.

Improve internal processes and better lead development teams.

Gain a better understanding of your current systems and build new ones.

Plan object-oriented systems in a joint workspace that fosters collaboration and innovation.

Understand how external entities affect your system at a high level with a context diagram.

Map out any process with ease.

How to create an ER diagram with Miro


Map your system

Identify your system entities and their relationships. Use the Mermaid app to easily create a diagram using ERD syntax.


Select the ER diagram in the app

Edit the code or text as you see fit. You can change the size of the code editor panel by dragging it from its right edge.


Add it to your board

Click on the Add to board button to add your ER diagram as an image to the board.

Integrated with your favorite tools

Ideas, inspiration, and intel in full view. Visualize marketing campaigns and client and prospect info to take action, and track tasks and status updates for the team.

Connect Miro to 1OO+ of your favorite collaboration tools

“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

What is the purpose of an ER Diagram?

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 entity relationship diagram.

Read more


What is an entity relationship diagram?


What is a network diagram, and how do you make one?


A simple guide to using and creating a context diagram

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