Pricing Plans
Choose the perfect plan for your project scale
Free
For personal projects and learning
- Basic ERD editor
- 10 AI ERD generations per month
- Unlimited projects
- Personal use (1 person)
- Export (PNG, SQL)
- 8 ORM code exports (Prisma, TypeORM, Drizzle, and more)
- Community support
- ⚠️ Ad-supported
Plus
For individual developers and small teams
- Everything in Free (except ads)
- 200 AI ERD generations per month
- Unlimited projects
- Team collaboration (up to 5)
- Dedicated email support
- ✨ Ad-free experience
Pro
For professional teams and growing companies
- Everything in Plus
- Unlimited AI ERD generations
- Team collaboration (up to 15)
- AI priority processing (faster response)
- Dedicated email support
- API access
- ✨ Ad-free experience
Enterprise
For large teams and organizations
- Everything in Pro
- Unlimited AI generation (priority queue)
- Custom AI model training
- Unlimited collaborators
- SSO / SAML authentication
- Dedicated support & SLA
- On-premise deployment option
- Custom contracts
- ✨ Ad-free experience
All plans start free with no credit card required. Upgrade anytime.
Traditional Way
Erdmates solves the limitations of traditional ERD tools
Before
After
3 Simple Steps
Complete a professional ERD in just 3 steps — no complex tools required
Describe
Describe your desired database structure in everyday language. Type freely like "I need user, product, and order tables, and users can place multiple orders."
AI Analysis
AI analyzes your input to determine the optimal table structure, column types, and constraints. It applies normalization principles to design an efficient database schema.
ERD Generation
A visual ERD diagram is instantly generated based on the analysis. The created ERD can be immediately edited or exported to SQL.
Key Features
Powerful AI-driven features that revolutionize your database design workflow
AI ERD Generation
Describe your database structure in plain language and AI automatically creates tables, columns, and relationships. Complete a professional ERD diagram in seconds.
Real-time Collaboration
Edit the same ERD simultaneously with teammates and see changes reflected in real time. Collaborate efficiently on database design even with remote teams.
Smart Relationship Linking
Automatically recognizes and visualizes foreign key (FK) relationships between tables. Set up 1:1, 1:N, and N:M relationships intuitively with drag and drop.
Auto SQL Generation
Automatically generate DDL SQL for PostgreSQL, MySQL, SQLite, and MSSQL from your ERD. Draw the diagram and instantly get executable queries.
Version Control
All changes are automatically saved so you can restore to any previous version at any time. Edit your ERD freely without worrying about mistakes.
Multiple Export Formats
Export your ERD to PNG/SVG images, SQL DDL, Prisma, TypeORM, Drizzle ORM, and many other formats. Choose the format that fits your development environment.
Perfect For
Professionals from various fields work with ERDMates
Backend Developers
Quickly design DB structure before API development
Startups
Fast prototyping in early product stages
Product Planners
Plan DB structure without technical knowledge
Students
Database assignments and projects
Real-World Example
Describe an e-commerce database in natural language, and it generates like this
Before: Text Input
"I want to build an e-commerce site. I need users, products, orders, and reviews. A user can place multiple orders and can leave reviews on products."
After: Auto-generated ERD
Frequently asked questions
What is an ERD?
An ERD (entity relationship diagram) is a blueprint of a database that shows its tables (entities), columns (attributes), and the relationships between tables. It lets you review the data structure before you build and discuss the same picture with your team.
Read the beginner's guide to ERDs →Is Erdmates free to use?
Yes. You can start for free without a credit card, and the free plan has no limit on the number of projects. It includes 10 AI requests per month and shows ads. Plus and Pro plans add more AI usage and collaborators.
See pricing →How do I create an ERD with AI?
Describe the app you want to build in a sentence or two, and AI drafts an ERD with tables, columns, data types, keys, and relationships. For example: "An online store where users place many orders and review products." You can edit the result right away in the editor.
Read the guide →Can I convert existing SQL into an ERD?
Yes. Paste CREATE TABLE statements into the free SQL to ERD converter to see the diagram without signing up; the SQL is parsed in your browser. After signing in, the editor can also use AI to turn SQL or an image of a diagram into an ERD.
Open the SQL to ERD converter →Can I edit an ERD that AI generated?
Yes. AI-generated ERDs are edited like any other diagram: add or remove tables and columns, change data types, and adjust relationships with drag and drop. You can also ask the AI chat to modify the schema or suggest improvements.
Can my team edit in real time?
Yes. Several people can edit the same ERD at once, and their changes are merged automatically with CRDT-based sync. Each project can have 1 collaborator on Free, 5 on Plus, and 15 on Pro.
Read the team database design guide →Which databases and ORMs can I export to?
SQL DDL can be exported for PostgreSQL, MySQL, SQLite, and Microsoft SQL Server. ORM code is available for 8 frameworks: Prisma, TypeORM, Drizzle, Sequelize, SQLAlchemy, Django ORM, JPA/Hibernate, and Entity Framework Core. You can also export PNG, SVG, or JSON.
Read the SQL CREATE TABLE guide →How is my project data protected?
All traffic is encrypted with HTTPS, sign-in sessions use HttpOnly cookies, and requests are protected against CSRF with input validation. Projects can only be viewed or edited by users with a role on them, such as owner, editor, or viewer.
Can I use Erdmates on mobile?
You can open it in a mobile browser. Because diagram editing needs a wide screen, we recommend using a desktop or laptop.