Visualize your database schema

Automatically generate an interactive ER Diagram (ERD)
from your existing SQL cloud database

Connect your database

Lightning fast to set up

Tables, columns and joins are detected automatically.

Always up-to-date

As your schema changes, your ER diagram automatically updates.

Easy to collaborate

Invite and work directly with your teammates

What is an ER Diagram?

An ER diagram, ERD, or entity relationship diagram, is a graphical representation of your database schema. It shows the tables (or "entities") as boxes, with connecting lines representing the (foreign key) relationships that exist between them. Usually, a table's columns are displayed too, including the primary and foreign key columns, between which the connecting lines are drawn.

Create your diagram, fast

Everything you need to know to visualize your existing schema

1

Connect your database

Trevor.io supports a wide range of SQL databases
and automatically detects all tables, columns and joins for you.

PostgreSQL

MySQL

Redshift

SQL Server

MariaDB

Snowflake

Big Query

Coming soon!

MongoDB

Coming soon!

2

Create and arrange your diagram

Select which tables and columns should be included in your diagram by simply clicking "Add to map" from the left sidebar. Foreign key relationships are detected automatically.

3

Always up-to-date

We use foreign keys and standard naming conventions to automatically detect the relationships between your database tables. You can also easily add / modify these joins by hand. This means that your diagram stays effortlessly up-to-date whenever your schema changes.

We do the heavy lifting for you

Trevor.io is used by hundreds of companies worldwide to empower their teams to get answers from their database data in just a few clicks. No SQL knowledge required. Set up Trevor.io for your team and choose exactly what they do and do not have access to, and give your team data superpowers to answer their own data questions.

Chat with us Create your diagram