Amazon DynamoDB is a serverless, fully managed, distributed NoSQL database from Amazon Web Services (AWS). Developers use it for applications that need fast access at varying scale without managing servers, upgrades or maintenance windows. It offers ACID transactions, Time to Live for expiring old records, DynamoDB Streams for near real-time event processing, bulk import and native vector search. Global tables replicate data across AWS Regions with multi-active writes. It is delivered as a managed service through the AWS console and APIs.
DynamoDB is operated by AWS, a subsidiary of the US company Amazon, so it falls under US jurisdiction, including the CLOUD Act. It is available in several European AWS Regions, including Frankfurt, Ireland, Paris, Stockholm, Milan, Spain and Zurich, and you decide in which Regions your tables reside. DynamoDB is a proprietary AWS service with its own API, so applications built on it are tied to AWS, which matters for portability and exit planning.