ER diagrams that know your SQL.
Paste SQL, describe it to AI, or draw from scratch.
600,000+ developers — including teams at
How it works
Three ways to build an ERD
Most ERD tools give you one way in. We give you three — pick whichever matches what you already have.
Paste SQL — see the diagram
Have existing CREATE TABLE statements? Paste them in. DrawSQL auto-detects MySQL, PostgreSQL, or SQL Server and renders your ERD in seconds.
Paste your SQLAsk AI — get a schema
Describe your application in plain English. DrawSQL's AI designs the schema — tables, columns, relationships, constraints. Review and refine from there.
Describe your appDesign from scratch
Start with a blank canvas. Add tables, define columns, draw foreign keys. Drag to arrange, group by domain, annotate with sticky notes.
Open the editorTemplates
See what real schemas look like
200+ schemas from real apps — CMS, e-commerce, SaaS, business tools. Borrow one to start, or just browse for ideas.
WordPress
PHP Content Management System
Django
Python web framework
Koel
Open source music streaming server
Monica
Open source personal CRM
Sylius
eCommerce Platform
Akaunting
Accounting and invoicing software
BookStack
Simple & Free Wiki Software
Flarum
Simple forum software
Wagtail
Django CMS
SaaS Pegasus
Django-powered SaaS template
Snipe-IT
IT asset/license management system
Laravel Spark (Stripe)
SaaS subscription billing boilerplate for Laravel
FAQ
Frequently asked questions
Yes. AI can generate migrations quickly, but it does not give your team a shared mental model of the database.
The migration changes the schema. The ERD explains it: which tables belong together, which relationships are foundational, and which parts of the data model are safe to change.
That matters when you are onboarding a developer, reviewing an AI-generated change, or planning a feature across multiple tables.
Still reading?
Draw it. Then decide if it’s worth saving.
Up to 20 tables on the free tier. Save to an account when it becomes useful.