Download Supabase JDBC Driver

Download the Supabase JDBC driver, copy the JDBC URL into DbSchema, and start designing schemas with ER diagrams — free Community Edition.

About the Supabase JDBC driver

A JDBC driver is a Java .jar library that lets applications connect to Supabase. DbSchema uses JDBC to reverse engineer schemas, run SQL, and generate documentation. Driver files are usually published by the database vendor or an open-source project.

JDBC URL format

Host, port, database name, and SSL options are passed in a URL starting with jdbc:. Each Supabase driver uses its own syntax — see the connection details below.

The Supabase JDBC driver

Supabase is an open-source Firebase alternative built on top of PostgreSQL, providing a full backend-as-a-service platform with a hosted database, authentication, real-time subscriptions, and storage. It exposes the underlying PostgreSQL database directly, giving developers full SQL access and the ability to use any PostgreSQL-compatible tool. Supabase supports extensions such as pgvector for AI embeddings and PostGIS for geospatial data.

The Supabase JDBC URL

• Required File(s): postgresql-xxx.jar
• Java Driver Class: org.postgresql.Driver
• JDBC URL: jdbc:postgresql://{HOST}:{PORT}/{DB}
• Website: Supabase

Supabase provides both a direct PostgreSQL connection string and a connection pooler URL (via PgBouncer). For DbSchema, use the direct connection: jdbc:postgresql://db.xxxxx.supabase.co:5432/postgres?sslmode=require. Avoid the pooler URL for schema introspection as it may limit certain metadata queries.

DbSchema and Supabase

DbSchema connects to Supabase PostgreSQL using the standard JDBC driver, visualizing tables, Row Level Security policies, foreign key relationships, and pgvector extension columns, making it easier to design and document your Supabase database schema.