✦ Free Tool

Visualize your database in minutes

Connect Snowflake or BigQuery, get an interactive ERD with live data previews, and ask AI to explain any table, column, or relationship.

No signup required·Bring your own database·Powered by OverFlow

What it does

Three things, done well

🗄

Connect your database and your full schema appears on canvas — tables, columns, primary keys, and foreign key relationships — instantly.

📊

Click any table to see the first 20 rows of real data. Not a mock. Your actual database, queried on demand.

🤖

Ask "explain this table", "which tables should I join for revenue analysis?", or "generate a query joining users and payments".

How it works

Enter your Snowflake account details or BigQuery project. Your credentials stay in your browser — they never leave your machine.

Six tables appear as an interactive ERD with PK/FK markers and relationship edges drawn between them.

Click ⊞ on any table to see live data. Connect an LLM node to ask AI questions about your schema directly in the canvas.

Stop context-switching between your IDE, docs, and query tool. Schema Intelligence puts your live schema, data, and an AI assistant on one canvas.