E-commerce ERD Maker
Map your store’s database fast
Generate a professional ER diagram for e-commerce with AI. Edit entities, keys, cardinalities, and layout—all with instant preview and export.
Why this ERD maker
Purpose-built for clear, accurate e-commerce schemas
Entity editor
Define tables and attributes with clear names, types, and comments. Mark primary, foreign, and unique keys easily.
Relationship designer
Set identifying or non-identifying relationships with precise labels that explain table intent.
Cardinality controls
Choose exactly one, zero or one, one or more, or zero or more on each side for accurate models.
Domain-ready defaults
Start with CUSTOMER, ORDER, PRODUCT, and ORDER_ITEM preconfigured for e-commerce flows.
Layout & zoom
Switch directions (LR, TB, BT, RL), adjust font size, and enable zoom/pan for complex diagrams.
Instant preview & export
See changes live as you edit and export production-ready PNG/SVG or share via link.
Bring your data
Type entities
Enter tables, attributes, and keys directly in the editor.
Paste columns
Paste from a spreadsheet to populate attributes quickly.
Import files (Pro)
Upload common files to prefill entities and relationships.
Start from template
Load a ready E-commerce ERD and adapt it to your needs.
Share and export
Download images
Export crisp PNG or SVG for docs, slides, and reports.
Share link
Send a view link for instant stakeholder review.
Embed anywhere
Embed your ERD on websites or wikis with a simple snippet.
Save and update
Keep versions and refresh diagrams without starting over.
About this tool
This AI ERD maker focuses on e-commerce databases. It drafts a clear schema, labels PK/FK, and sets cardinalities automatically. You edit in plain language or with simple controls. Preview updates live. Export and share instantly.
- ✓Built for e-commerce flows
- ✓Accurate keys and cardinalities
- ✓Fast, readable layouts
- ✓Works for beginners and pros
- ✓Free to start, upgrade as needed
Quick facts
How it works
From idea to export in minutes
Describe with AI
Tell the AI about your store: entities, keys, and how they relate. It generates a complete ERD draft.
Example: "Customers place orders; orders have many items; products link to items."
Refine entities
Add or rename tables and attributes. Set PK, FK, and unique keys with one click.
Example: Set order_id as PK; customer_id as FK in ORDER.
Map relationships
Choose identifying or non-identifying and set cardinalities for both sides. Add clear labels.
Example: ORDER -> ORDER_ITEM identifying; PRODUCT -> ORDER_ITEM non-identifying.
Style & export
Pick layout direction, adjust font size, enable zoom/pan, then export or share.
Example: Left-to-right layout, medium font, export SVG.
Who it’s for
Focused on e-commerce data design and review
Store database design
Model customers, orders, items, inventory, and promotions to align product and checkout flows.
ETL and warehouse mapping
Blueprint source tables and relationships before building pipelines and dimensional models.
Microservice contracts
Document service boundaries and PK/FK contracts for order, catalog, and customer services.
Teach ER modeling
Use a concrete e-commerce schema to explain keys, cardinality, and normalization.
Templates
Start with professionally designed templates
ERD Crow's Foot Template for Database Schema Design
Start with a production-ready entity relationship diagram using crow's foot notation to map your database tables, keys, and relationships clearly.
ER Diagram Template for E-Commerce Databases
Start with a complete, production-ready entity relationship diagram covering the full e-commerce data model — from customers and orders to products and payments.
Entity Relationship Diagram Template
Instantly map your database schema with a fully editable ERD template showing entities, attributes, keys, and relationships.
Database ER Diagram with Crow's Foot Notation
A complete e-commerce database schema template using crow's foot notation to clearly show entity relationships, cardinality, and key constraints.
CRM Contacts–Leads–Deals ERD: a clear, scalable model
This erd visualizes how Companies, Contacts, Leads, and Deals relate, including the many-to-many link between Contacts and Deals via Deal_Contact.
Shopping Cart & Checkout ERD Template for E‑commerce
Visualizes users, carts, items, orders, payments, shipping, coupons, and inventory across the checkout lifecycle.
View All Templates
Browse the full library to find more templates tailored to your chart.
Why choose AI over manual
Less fiddling, more clarity
Traditional ERD tools
- ✗Blank canvas and tedious wiring
- ✗Hard to set consistent cardinalities
- ✗Confusing key notation across tables
- ✗Manual layout becomes messy as models grow
- ✗Slow to iterate and share with stakeholders
AI-powered ERD maker
- ✓Instant domain draft for e-commerce entities
- ✓Guided cardinality and relationship types
- ✓Clear PK/FK badges and labeled links
- ✓Smart layout suggestions with zoom/pan
- ✓Fast preview, export, and share for quick feedback
ERD FAQs
What is the E-commerce Database ERD Maker?
It’s an AI-powered tool to design an e-commerce entity relationship diagram. Start from domain-ready entities, set PK/FK and cardinalities, preview instantly, and export or share your diagram.
How do I create an online store ER diagram with AI?
Describe your store’s entities and relationships in plain language. The AI generates a complete ERD draft, including keys and cardinalities, which you can refine in the entity and relationship editors.
Can I set identifying vs non-identifying relationships?
Yes. Choose the relationship type per link. For example, ORDER to ORDER_ITEM is often identifying, while PRODUCT to ORDER_ITEM can be non-identifying—adjust as your design requires.
Does it support PK/FK and composite keys?
Yes. Mark attributes as primary, foreign, unique, or PK, FK. You can model composite keys by marking multiple attributes and clarifying comments.
Can I change layout direction and font size?
Yes. Switch between top-to-bottom, bottom-to-top, left-to-right, or right-to-left, and adjust font size for readability. You can also enable zoom and pan for large diagrams.
Inclusive by design
- ✓Readable fonts and adjustable sizing
- ✓Keyboard-friendly editing controls
- ✓Clear PK/FK badges and relationship labels
- ✓Color choices with sufficient contrast
- ✓Zoom and pan for low-vision accessibility
Privacy and control
- •Your diagrams remain private by default
- •We don’t sell your data to third parties
- •You control share links and embeds
- •Download, edit, or delete your work anytime
- •Minimal data needed to use the free tool
Design your E-commerce ERD
Get a clean, accurate diagram in minutes—then export or share.