Couchbase

Couchbase is a distributed, multi-model NoSQL database: it delivers sub-millisecond, memory-first performance and horizontal scaling for mission-critical applications.

Couchbase is the high-performance, distributed NoSQL document database built for scale and flexibility. It stores data as JSON documents, supporting a multi-model architecture that includes key-value, full-text search, and analytics services. The memory-first design ensures ultra-low latency, often in the sub-millisecond range, critical for use cases like e-commerce and financial transactions. Developers leverage SQL++ (N1QL) to query JSON data, combining NoSQL flexibility with familiar SQL syntax. With Couchbase Lite, the platform extends to the mobile and edge, providing robust offline-first synchronization capabilities.

https://www.couchbase.com