Couchbase is an open-source multi-model NoSQL document-oriented database software package that is optimized for interactive applications. Developed by Couchbase
License: Open Source
PostgreSQL is a powerful relational database known for its advanced SQL capabilities and ACID compliance, making it ideal for transactional applications. In contrast, CouchBase is a NoSQL database that excels in flexibility and scalability, making it suitable for high-performance applications with rapidly changing data requirements.