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.

← Try the tool

Browser-Based

Database Diagram Online

Paste SQL or connect to your PostgreSQL database right in your browser. See your schema as an interactive diagram in seconds.

Browser-Based

Paste SQL or Connect

Live Preview

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.

Try SQL mode →

Connect to Database

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

Try connection →

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
Nullable columns marked so you can see optional relationships

Frequently asked questions

Do I need to install anything?

No. dbdiagramr runs entirely in your browser. There is nothing to download, install, or configure. Just open the tool, paste your connection string, and see your diagram.

Can I use this with MySQL?

Not yet. dbdiagramr currently supports PostgreSQL only. We focus on doing one database really well. If you need MySQL support, let us know on GitHub.

How is this different from pgAdmin?

pgAdmin shows your tables in a list and has a basic ERD tool. dbdiagramr generates a fully interactive diagram you can pan, zoom, and hover to trace foreign key relationships -- all from a connection string with no setup.

Can I share the diagram with my team?

Yes. Export as PNG or SVG to share in docs, Slack, or GitHub. You can also share the interactive diagram link so your team can explore the schema themselves.

Is there a limit on how many diagrams I can create?

The free plan includes 5 diagrams per month. Pro costs $8/month for unlimited diagrams. No credit card is required to try the free plan.

Create your database diagram now

Paste your PostgreSQL connection string and get an interactive database diagram in under 10 seconds. No install required.

Try it free →