pgpass simplifies connecting to PostgreSQL databases by securely managing passwords. This package reads .pgpass files, a standard PostgreSQL mechanism for storing connection credentials. It parses the file, matching connection parameters (hostname, port, database, username) to retrieve the correct password. This eliminates hardcoding passwords in your application, enhancing security and simplifying deployment across different environments, particularly when dealing with multiple PostgreSQL instances. Ideal for Node.js applications interacting with PostgreSQL.