EventStoreDB was built from the ground up to capture, process, and store the events that shape a business. Originally developed to support event sourcing architectural patterns, it has evolved into the world's first streaming, event-native database. EventStoreDB provides organizations a natural way to record business decisions and the ability to build software that aligns with their processes without being encumbered by the limitations of traditional databases.

At EventStoreDB's core is an immutable log that captures all the business processes and actions that alter the state of the organization as events happen. Writes are fast and scalable, and the log provides a persistent historical record. Each event is appended to the end of the log, guaranteeing the order sequence, providing a full-fidelity record of your data at any point in time, and adding causal logic to your applications, workflows, and data analysis.

EventStoreDB can produce billions of fine-grained streams to organize your data in a manner that aligns with your business goals. In EventStoreDB, events are appended to a stream where downstream services can subscribe. EventStore's onboard projection engine allows events to be indexed, can transform event data and emit new events, or aggregate event data to project current state to predefined read models for analysis.

Event Store Cloud is a managed cloud offering that automates the provisioning of EventStoreDB and connects the clusters to your applications or other services hosted on AWS. Companies across a range of industries have trusted Event Store Cloud to run EventStoreDB in production, allowing them to rapidly innovate while reducing the overhead of managing the underlying infrastructure.