How do I get my PostgreSQL connection string?

In your database provider's dashboard, click Connect to retrieve your connection string. It typically looks like: postgresql://user:password@host:5432/dbname.

Which connection method should I use?

Select the Transaction pooler option. This ensures compatibility with stateless applications and allows dbdiagramr to detect connections properly.

What if I forgot my database password?

Regenerate your password in the Shared pooler section of your database provider's dashboard and copy-paste the new credentials into your connection string.

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Free Tool

Free Database Schema Generator

Paste SQL or connect to your PostgreSQL database. Generate a visual schema diagram in seconds. Free forever, no signup.

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Paste SQL or Connect

Export SVG/PNG

dbdiagramr.space/visualize

React Flow

Two ways to visualize your schema

Paste SQL for a quick preview, or connect to your live database for the full picture.

dbdiagramr.space/visualize

CREATE TABLE users {
  id uuid PRIMARY KEY,
  name varchar(255) NOT NULL,
  email varchar(255) UNIQUE
};

CREATE TABLE posts {
  id uuid PRIMARY KEY,
  user_id uuid REFERENCES users(id),
  title text,
  created_at timestamptz
};

Generate diagram2 tables, 1 relationship detected

Paste SQL

Paste CREATE TABLE statements and see a live ER diagram as you type. No server needed.

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Connect to Database

Paste your PostgreSQL connection string and see your entire database schema. Works with Supabase, Neon, Railway.

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What the diagram shows

All tables with their columns and data types
Primary keys highlighted on each table
Foreign keys drawn as lines connecting related tables

Frequently asked questions

What is a database schema generator?

A database schema generator connects to your PostgreSQL database, reads the tables, columns, and relationships, and creates a visual diagram. It saves you from drawing diagrams by hand.

Is it really free?

Yes. The free plan includes 5 diagrams per month with no credit card required. Pro costs $8/month for unlimited diagrams if you need more.

Does it support MySQL or SQLite?

Currently dbdiagramr supports PostgreSQL only. We focus on doing one database really well. If you need MySQL or SQLite support, let us know on GitHub.

How is this different from drawing a diagram by hand?

Hand-drawn diagrams go stale the moment your schema changes. dbdiagramr reads your live database, so the diagram always reflects your actual schema. Add a column and the diagram updates.

Is my data safe?

Yes. dbdiagramr connects to your database to read the schema and immediately discards the connection string. Your data is never stored, logged, or shared. Nothing is published publicly.

Generate your schema diagram now

Paste your PostgreSQL connection string and get a visual schema diagram in under 10 seconds. Free forever.

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