PostgreSQL Connection String Builder
Generate connection strings for all major PostgreSQL drivers and ORMs. Handles URL encoding and SSL configuration.
Connection Details
Frequently Asked Questions
What is a PostgreSQL connection string?▼
A connection string (or DSN — Data Source Name) encodes all the parameters needed to connect to a PostgreSQL database: host, port, database name, username, password, and optional parameters like SSL mode. Different drivers use different formats: libpq URI (postgresql://), JDBC (jdbc:postgresql://), and key=value (DSN format).
What is sslmode and which should I use?▼
sslmode controls SSL/TLS behavior: 'disable' — no SSL; 'require' — SSL required, no cert verification (vulnerable to MITM); 'verify-ca' — SSL + verify server CA; 'verify-full' — SSL + verify CA + hostname (most secure). Use 'require' for cloud DBs like Neon/Supabase, 'verify-full' for production databases you control.
What is the PostgreSQL default port?▼
PostgreSQL uses port 5432 by default. If your database runs on the default port, you can omit it from the connection string. Cloud providers like Neon use 5432, PgBouncer pools often use 6432.
How do I handle special characters in passwords?▼
In URI format, special characters in passwords must be percent-encoded. For example, @ becomes %40, # becomes %23, / becomes %2F. In key=value DSN format, single-quote the value and escape single quotes with \' — no percent-encoding needed. This tool handles encoding automatically.
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