Free Online ER Diagram Tool for Team

Create professional ER diagrams effortlessly with Boardmix's free, collaborative online ER diagram maker.
With no steep learning curve, you can get started quickly and bring your data models to life.

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Comprehensive ER diagram templates

Access a vast library of related templates to quickly design entity relationship diagrams for databases like books, social media, factories, e-commerce and more.

Conceptual ER Diagram

Logical ER Diagram

Physical ER Diagram

Library Management System ER Diagram

Social Management System ER Diagram

Factory Management System ER Diagram

Book Loan Management System ER Diagram

Inventory Management System ER Diagram

Points System ER Diagram

Commodity Relationship Model ER diagram

E-commerce Product Database ER Diagram

Hospital Outpatient Management System ER Diagram

Student Information Management System ER Diagram

Hotel Room Reservation System ER Diagram

Hospital Outpatient Management System ER Diagram

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Streamlined workflow with infinite canvas

Boardmix offers an infinite online canvas for seamless data modeling visualization. Leverage a rich library of diagrams like flowcharts, mind maps, and more to clearly convey intricate database structures, relationships, and hierarchies.

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Streamlined workflow with infinite canvas

Boost team efficiency with online collaboration

Boardmix supports for up to 5,000 team members to create architecture diagrams, flowcharts and more simultaneously. Leverage features like in-app commenting, voting, and live presentation to align on the best solutions.

Start for free

Boost team efficiency with online collaboration

Accelerate your work with AI assistance

Boardmix's built-in AI assistant provides intelligent support to simplify your ER diagram creation process. Leverage over 11 pre-built AI templates to automatically generate complementary visuals like mind maps and flowcharts from your text inputs to save time.

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What our users are saying

Trusted by 4M+ users worldwide

"Real-time collaboration has revolutionized our remote team's workflow. We can work on the same ER diagram together and give instant feedback."

Jordan L.

Remote Team Lead

"The comment and feedback system keeps our team on the same page."

James Krith

Business Analyst

"I love how intuitive and user-friendly Boardmix is for ER diagram creation."

Taylor Ray

Database Administrator

"Boardmix's templates made starting my ER diagrams so much easier!"

Alex T.

Software Developer

"Infinite canvas lets me visualize complex systems without limits."

Casey D.

Systems Architect

"Real-time collaboration has revolutionized our remote team's workflow. We can work on the same ER diagram together and give instant feedback."

Jordan L.

Remote Team Lead

"The comment and feedback system keeps our team on the same page."

James Krith

Business Analyst

"I love how intuitive and user-friendly Boardmix is for ER diagram creation."

Taylor Ray

Database Administrator

"Boardmix's templates made starting my ER diagrams so much easier!"

Alex T.

Software Developer

"Infinite canvas lets me visualize complex systems without limits."

Casey D.

Systems Architect

"Real-time collaboration has revolutionized our remote team's workflow. We can work on the same ER diagram together and give instant feedback."

Jordan L.

Remote Team Lead

"The comment and feedback system keeps our team on the same page."

James Krith

Business Analyst

"I love how intuitive and user-friendly Boardmix is for ER diagram creation."

Taylor Ray

Database Administrator

"Boardmix's templates made starting my ER diagrams so much easier!"

Alex T.

Software Developer

"Infinite canvas lets me visualize complex systems without limits."

Casey D.

Systems Architect

"Real-time collaboration has revolutionized our remote team's workflow. We can work on the same ER diagram together and give instant feedback."

Jordan L.

Remote Team Lead

"The comment and feedback system keeps our team on the same page."

James Krith

Business Analyst

"I love how intuitive and user-friendly Boardmix is for ER diagram creation."

Taylor Ray

Database Administrator

"Boardmix's templates made starting my ER diagrams so much easier!"

Alex T.

Software Developer

"Infinite canvas lets me visualize complex systems without limits."

Casey D.

Systems Architect

"Real-time collaboration has revolutionized our remote team's workflow. We can work on the same ER diagram together and give instant feedback."

Jordan L.

Remote Team Lead

"The comment and feedback system keeps our team on the same page."

James Krith

Business Analyst

"I love how intuitive and user-friendly Boardmix is for ER diagram creation."

Taylor Ray

Database Administrator

"Boardmix's templates made starting my ER diagrams so much easier!"

Alex T.

Software Developer

"Infinite canvas lets me visualize complex systems without limits."

Casey D.

Systems Architect

"Real-time collaboration has revolutionized our remote team's workflow. We can work on the same ER diagram together and give instant feedback."

Jordan L.

Remote Team Lead

"The comment and feedback system keeps our team on the same page."

James Krith

Business Analyst

"I love how intuitive and user-friendly Boardmix is for ER diagram creation."

Taylor Ray

Database Administrator

"Boardmix's templates made starting my ER diagrams so much easier!"

Alex T.

Software Developer

"Infinite canvas lets me visualize complex systems without limits."

Casey D.

Systems Architect

"Real-time collaboration has revolutionized our remote team's workflow. We can work on the same ER diagram together and give instant feedback."

Jordan L.

Remote Team Lead

"The comment and feedback system keeps our team on the same page."

James Krith

Business Analyst

"I love how intuitive and user-friendly Boardmix is for ER diagram creation."

Taylor Ray

Database Administrator

"Boardmix's templates made starting my ER diagrams so much easier!"

Alex T.

Software Developer

"Infinite canvas lets me visualize complex systems without limits."

Casey D.

Systems Architect

"Real-time collaboration has revolutionized our remote team's workflow. We can work on the same ER diagram together and give instant feedback."

Jordan L.

Remote Team Lead

"The comment and feedback system keeps our team on the same page."

James Krith

Business Analyst

"I love how intuitive and user-friendly Boardmix is for ER diagram creation."

Taylor Ray

Database Administrator

"Boardmix's templates made starting my ER diagrams so much easier!"

Alex T.

Software Developer

"Infinite canvas lets me visualize complex systems without limits."

Casey D.

Systems Architect

"Real-time collaboration has revolutionized our remote team's workflow. We can work on the same ER diagram together and give instant feedback."

Jordan L.

Remote Team Lead

"The comment and feedback system keeps our team on the same page."

James Krith

Business Analyst

"I love how intuitive and user-friendly Boardmix is for ER diagram creation."

Taylor Ray

Database Administrator

"Boardmix's templates made starting my ER diagrams so much easier!"

Alex T.

Software Developer

"Infinite canvas lets me visualize complex systems without limits."

Casey D.

Systems Architect

"Real-time collaboration has revolutionized our remote team's workflow. We can work on the same ER diagram together and give instant feedback."

Jordan L.

Remote Team Lead

"The comment and feedback system keeps our team on the same page."

James Krith

Business Analyst

"I love how intuitive and user-friendly Boardmix is for ER diagram creation."

Taylor Ray

Database Administrator

"Boardmix's templates made starting my ER diagrams so much easier!"

Alex T.

Software Developer

"Infinite canvas lets me visualize complex systems without limits."

Casey D.

Systems Architect

Explore more free templates for
better diagramming

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Mind map Template

A mind map is a useful tool for brainstorming thoughts individually or with teammates.

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Flowchart Template

Simplify business process and development by using a flowchart template.

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Organizational Chart

Visualize hierarchy, clarify relationships, improve organizational transparency.

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User Story Map Template

Creating the best possible experience for your customers

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Competitor Analysis Report Template

Know your competitors and use insights to improve your market position

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Storyboard Template

Produce compelling video content with a storyboard template.

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Target Audience Template

Get to know your customers better using a target audience template

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SWOT Analysis Template

Develop a SWOT analysis template to assess where you stand against your competition

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BCG Matrix Template

Clear insights into your business performance and uncovers new growth opportunities.

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Lean Canvas Template

Create a simple, clear, and concise business plan that precisely conveys your ideas

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Competitor Analysis Report Template

Know your competitors and use insights to improve your market position

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Scrum Board Template

Deliver concise developments on your business processes using a Scrum board template

FAQs about online ER diagram design

What is a ER diagram?

What's included in a ER diagram?

How to create an Entity-Relationship diagram in Boardmix?

What file formats does Boardmix support for exporting projects and diagrams?

Free Online ER Diagram Tool for Team

Comprehensive ER diagram templates

Streamlined workflow with infinite canvas

Boost team efficiency with online collaboration

Accelerate your work with AI assistance

What our users are saying

Explore more free templates for better diagramming

Diargramming

Research & Analysis

Strategy & Planning

Agile Workflows

FAQs about online ER diagram design

Join Boardmix and Enhance Your ER Diagram Creation

Explore more free templates for
better diagramming