AI entity modeling
Describe your data and get a complete entity relationship diagram proposal in seconds.
Chart & Visualization Tools
AI ERD Diagram Generator
Turn your data model into a precise ERD with AI. Define entities, attributes, keys, and relationships, then preview, refine, and export in seconds.
Features
Why use this ERD tool
AI speeds up modeling while you stay in control.
Accurate keys & roles
Mark PK, FK, and UK clearly so constraints are obvious to everyone.
Clear cardinality
Use exactly one, zero or one, one or more, or zero or more with readable labels.
Identifying types
Choose identifying or non‑identifying relationships to reflect real dependencies.
Layout & readability
Switch direction (TB/BT/LR/RL) and adjust font size for clarity.
Zoom, export, share
Zoom and pan smoothly, then export PNG/SVG or share a link.
Data input
Bring your data
Type manually
Enter entities, attributes, and key markers in seconds.
Paste from sheet
Paste columns or tables; AI maps them to entities and relationships.
Import file (Pro)
Upload common files to draft your ERD instantly.
Start with template
Pick a ready ERD and adapt it to your schema.
Share
Share and export
Download images
Export crisp PNG or SVG for docs, decks, and wikis.
Share link
Send a view link so teammates can review instantly.
Embed anywhere
Add the ERD to your site or knowledge base with a simple snippet.
About this ERD tool
This AI entity relationship diagram generator helps you design database structures fast. Describe your model and get a tidy ERD you can edit, preview, and export. It highlights keys, cardinality, and relationship types clearly. Build trust with diagrams that are accurate and easy to read.
<2 minTime to first ERD
TB, BT, LR, RLLayout directions
4Cardinality presets
PK, FK, UKKey markers
12+Languages
Workflow
How it works
Describe or paste
Tell the AI about entities, attributes, keys, and relationships; or paste columns from a sheet.
Review entities & keys
Confirm names, map attributes, and set PK/FK/UK. Adjust comments for clarity.
Define relationships
Select cardinality and type (identifying or non‑identifying). Add optional labels.
Tweak & export
Choose layout direction, set font size, enable zoom/pan, then export or share.
Use cases
Use cases
Design robust schemas
Plan tables and constraints before coding migrations; perfect for microservices, event stores, and legacy refactors.
Model dimensions and facts
Sketch star/snowflake structures, surrogate keys, and bridge tables for clear analytics.
Teach data modeling
Explain entities, attributes, and relationships with simple visuals students understand.
Map customer flows
Capture CUSTOMER, ORDER, PRODUCT, and ORDER_ITEM links for billing, inventory, and fulfillment.
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 TemplateerdDesign 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‑commerceerdBuild 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 ModelserdVisualize 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 TemplateerdDesign 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 modelerdDesign 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 Makererd
Create accurate schemas fast with our ERD maker for database design. Auto-build entities and relationships, customize layout and labels, then export or share—free online.
ERD for Postgres & MySQLerdDesign 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 GeneratorerdDesign 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 CreatorerdCreate 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
AI vs. traditional ERD
Model faster with fewer errors.
AI‑assisted ERD
- Instant draft from a short description
- Consistent PK/FK/UK and cardinality labels by default
- Smart, tidy layout with one click
- Templates and examples reduce setup
- Easy export and share for quick feedback
Traditional diagramming
- Manual box-and-line drawing is slow
- Hard to keep keys and cardinalities consistent
- Layout adjustments consume time
- Starting from scratch leads to missed entities
- Sharing requires extra formatting
FAQ
ERD generator FAQs
What is an entity relationship diagram generator?
It’s a tool that creates ER diagrams showing entities, attributes, and relationships in a database model. This generator uses AI to propose a clear, accurate diagram you can edit and export.
How does the AI ERD generator work?
Describe your data model in plain language or paste columns. The AI infers entities, attributes, keys, and relationships, selects cardinality and relationship types, and outputs a readable ERD you can refine.
Can I set PK/FK and cardinality exactly?
Yes. Mark primary, foreign, and unique keys. Choose cardinality from exactly one, zero or one, one or more, or zero or more. You can also label relationships for added clarity.
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 set a comfortable font size. Zoom and pan help present large models.
Is this a free entity relationship diagram generator?
Core features are free, including instant preview and image export. Optional Pro features accelerate setup with uploads and advanced AI refinement.
How do I export or embed my ER diagram?
Download PNG or SVG for documents and slides, or create a share link. You can also embed the diagram on websites or internal wikis for easy access.
Does it support identifying vs non‑identifying relationships?
Yes. Choose identifying when the child’s PK includes the parent’s key, otherwise use non‑identifying. The diagram reflects the type with clear labels.
What about ERD templates and examples?
Start from templates like CUSTOMER–ORDER–PRODUCT or other common patterns. Customize entities, attributes, and keys to fit your project.
Is my data private and secure?
You control what you share. We don’t sell your data, and you can delete charts anytime. See the Privacy section for details.
Inclusive by design
- Keyboard navigation for editing and zoom
- Clear labels and contrast for readability
- Layout choices to reduce visual clutter
- Screen‑reader friendly titles and descriptions
- Zoomable canvas for low‑vision access
Privacy and control
- Your work stays yours; you decide what to share
- We don’t sell your data or diagrams
- Delete charts or your account at any time
- Share links can be revoked whenever you choose
- Exports are generated on demand and can be removed by you
Start now
Design your ERD now
Describe your data model and get a clean, editable diagram in seconds.
- AI‑drafted entities and relationships
- Clear PK/FK/UK markers
- Readable cardinality labels
- Flexible layout directions
- Zoom, export, and share
Tip: Mention PK/FK/UK, cardinality (1, 0..1, 1..*, 0..*), and relationship labels.