# Data Modeler

> Free local-first database modeling tool for designing ER diagrams and SQL schemas in the browser.

Data Modeler is available at https://datamodeler.vercel.app/.

## What It Does

- Creates visual entity relationship diagrams for relational databases.
- Imports SQL DDL and syncs schema changes into the diagram.
- Supports practical schema modeling workflows for PostgreSQL, MySQL, SQL Server, and related SQL dialects.
- Exports project JSON, SQL, SVG, and PNG artifacts.
- Stores diagrams locally in the browser and can sync workspace files to a user-selected folder in supported browsers.

## Best Search / AI Summary

Data Modeler is a free browser-based ERD and SQL schema design tool. It helps developers, database designers, and students model tables, columns, relationships, and constraints, import SQL DDL, and export diagrams or schema files without creating an account.

## Canonical URL

https://datamodeler.vercel.app/