Chart & Visualization Tools

AI ERD Maker

Q: What is an ERD maker for database design?

It’s a tool that helps you model entities, attributes, and relationships for a database. You can define keys, set cardinalities, preview the layout, and export your entity relationship diagram for implementation or review.

Q: How does the AI ERD tool generate diagrams?

You describe your domain in plain language. The AI proposes entities with attributes, PK/FK/UK keys, and relationships with cardinality and type. You review and refine, with instant previews to validate the structure.

Q: Can I set Left-to-Right or Top-to-Bottom layouts?

Yes. Choose LR, RL, TB, or BT from Display Settings to match your canvas or documentation style. The diagram reflows automatically to keep connections readable.

Q: Does it support identifying vs non-identifying relationships?

Yes. When creating relationships you can choose Identifying or Non-identifying and specify cardinalities like exactly one, zero or more, or one or more.

Q: Is there a free ERD maker version?

Yes. You can start free, create ERDs, customize layouts, and download images. Pro adds AI file uploads and advanced convenience features.

Generate entity relationship diagrams with AI, then refine entities, attributes, keys, and cardinalities with simple controls. Preview updates instantly and export in seconds.

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Features

Why use this ERD maker

Purpose-built for database design with AI assistance

AI-first modeling

Describe your domain and get entities, attributes, PK/FK tags, and relationships instantly.

Clear keys and roles

Highlight primary, foreign, and unique keys so constraints are obvious at a glance.

Cardinality and types

Set zero-or-more through exactly-one and mark identifying vs non-identifying relationships.

Flexible layouts

Switch Left-to-Right, Top-to-Bottom, or reverse directions to fit your space.

Instant preview

See every edit reflected in the diagram in real time as you refine your schema.

Zoomable canvas

Zoom and pan for complex models without losing readability.

Data input

Bring your data

⌨️

Type entities

Enter tables, attributes, and key roles directly in the editor.

📋

Paste schema

Paste columns from a spreadsheet or notes to map entities fast.

📁

Upload files (Pro)

Import common files to prefill entities and attributes for your ERD.

⚡

Quick start

Load the sample CUSTOMER–ORDER–PRODUCT model to learn the flow.

Share and export

🖼️

Download image

Export your ERD as PNG or SVG for docs, slides, or tickets.

🔗

Share link

Send a view link so teammates can review your diagram anytime.

🌐

Embed anywhere

Add the ERD to your site or wiki with a simple embed code.

About this ERD tool

Make clean ER diagrams without the busywork. Describe your data, and AI builds entities, keys, and relationships you can refine. Adjust layout, font size, and labels. Preview changes instantly. Export or share with one click. Designed for database design teams.

<2 minTime to first ERD

LR, RL, TB, BTLayouts

PK, FK, UKKeys supported

EnabledZoom & Pan

FreeCost to start

Workflow

How it works

Describe your model

Tell the AI your entities, key fields, and how they relate. Mention cardinalities and identifying links if known.

Review entities & keys

Confirm names, attributes, and PK/FK/UK roles. Add comments on important columns.

Define relationships

Set source/target, cardinality, and relationship type. Label connections for clarity.

Tidy layout & export

Choose Left-to-Right or Top-to-Bottom, adjust font size, then download or share.

Use cases

Software & SaaS

Product and user data models

Map accounts, users, roles, subscriptions, and billing flows to keep engineering aligned.

Ecommerce

Orders, inventory, and catalog

Design order pipelines, stock control, and product hierarchies for storefront and warehouse systems.

Analytics & BI

Warehouse staging models

Sketch star schemas, slowly changing dimensions, and fact tables before implementation.

Education

Teach ERDs clearly

Show students entities, keys, and cardinality with an approachable, interactive editor.

Templates

Start with professionally designed templates

E-commerce Order Management ERD Templateerd

Visualize your E-commerce Order Management ER Diagram fast. See entities, keys, and flows from cart to delivery—share, embed, and refine in minutes.

Online Store Products & Inventory ERD Templateerd

Design a clean Online Store Products and Inventory ERD fast. Map products, stock, orders, and suppliers to prevent stockouts and speed decisions.

Shopping Cart & Checkout ERD Template for E‑commerceerd

Build a clear Shopping Cart and Checkout Entity Relationship Diagram in minutes—align teams, reduce defects, and ship a scalable data model.

SaaS User-Team-Subscription erd Template for Clean Data Modelserd

Visualize a User, Team, and Subscription SaaS ER Diagram in minutes. Map ownership, memberships, and billing with a clean, customizable model.

Multi-Tenant SaaS Database ERD Templateerd

Design a secure, scalable SaaS schema in minutes. Map tenants, users, roles, and billing with this Multi-Tenant SaaS Database ERD Template.

CRM Contacts–Leads–Deals ERD: a clear, scalable modelerd

Design a clean CRM Contacts, Leads, and Deals ER Diagram in minutes. Clarify relationships, prevent duplicates, and speed up implementation.

Related Tools

Create similar charts with these tools

AI ERD Diagram Generatorerd

Build accurate ER diagrams fast with our AI entity relationship diagram generator. Free, online, customizable, and export-ready (PNG/SVG). Create, edit, and share ERDs in minutes—no design skills needed.

ERD for Postgres & MySQLerd

Design clear ER diagrams for PostgreSQL and MySQL online. AI maps PK/FK, cardinality, and layout. Free to start, customize, and export or embed in seconds.

AI ERD Diagram Generatorerd

Design clean ER diagrams fast. Our database schema diagram tool uses AI to map entities, PK/FK keys, and cardinality. Free to start, customize layout, and export.

AI ER Diagram Creatorerd

Create accurate ER diagrams fast with AI. The Database ER Diagram Creator builds tables, keys, and relationships. Free, customizable, and easy to export or embed.

Comparison

Traditional vs AI-assisted ERD

Model faster with guidance and instant structure

AI-assisted ERD with MakeCharts

Auto-generate entities, attributes, and PK/FK/UK from a brief
Suggest cardinalities and relationship labels
One-click layout direction for tidy diagrams
Instant preview reduces rework
Clear prompts help choose identifying or non-identifying types

Traditional ERD workflow

Manual shape drawing and alignment
Re-typing attributes and keys repeatedly
Hard to keep cardinalities consistent
Layout tweaks consume time
Limited guidance on identifying vs non-identifying

FAQ

ERD maker FAQs

What is an ERD maker for database design?

It’s a tool that helps you model entities, attributes, and relationships for a database. You can define keys, set cardinalities, preview the layout, and export your entity relationship diagram for implementation or review.

How does the AI ERD tool generate diagrams?

You describe your domain in plain language. The AI proposes entities with attributes, PK/FK/UK keys, and relationships with cardinality and type. You review and refine, with instant previews to validate the structure.

Can I set Left-to-Right or Top-to-Bottom layouts?

Yes. Choose LR, RL, TB, or BT from Display Settings to match your canvas or documentation style. The diagram reflows automatically to keep connections readable.

Does it support identifying vs non-identifying relationships?

Yes. When creating relationships you can choose Identifying or Non-identifying and specify cardinalities like exactly one, zero or more, or one or more.

Is there a free ERD maker version?

Yes. You can start free, create ERDs, customize layouts, and download images. Pro adds AI file uploads and advanced convenience features.

What can I export or share?

Download PNG or SVG for slides and docs, or share a link for quick reviews. You can also embed the ERD in a wiki or website.

Is this an online ERD generator?

Yes. It runs in your browser—no installs. You can model schemas, adjust display options, and collaborate by sharing links.

Can I model keys like PK, FK, and unique constraints?

Absolutely. Mark attributes as primary, foreign, or unique keys and add comments to clarify constraints and references.

Does the tool help with database normalization?

While it doesn’t enforce rules, the AI can highlight possible redundancy and suggest clearer entity boundaries you can accept or edit.

How accurate are AI suggestions?

They’re strong starting points based on your description. You remain in control: edit entities, attributes, keys, and relationships before exporting.

Accessible by design

Readable fonts and adjustable sizes
Keyboard-friendly controls for editing
High-contrast colors for lines and labels
Zoom and pan for low-vision users
Concise labels to aid screen readers

Your data, your control

Diagrams are private by default until you share a link
You can download, edit, or delete your work anytime
We don’t sell your data or diagrams
Uploads are used only to build your ERD experience

Start now

Design your ERD now

Start free, then accelerate with AI when you need it

AI proposes entities, keys, and relationships
Switch layout direction instantly
Mark identifying vs non-identifying links
Export PNG/SVG or share a link
No sign-up required to try

Example: CUSTOMER has ORDERS; ORDER contains ORDER_ITEM; PRODUCT included in ORDER_ITEM.