CockroachDB is a distributed SQL database from Cockroach Labs. Every node can accept reads and writes; capacity grows by adding nodes without manual sharding, and data is rebalanced automatically. The database speaks the PostgreSQL wire protocol, so many drivers and ORMs work with it. It is delivered in three ways: fully managed by Cockroach Labs on AWS, Google Cloud or Azure, in your own cloud account (BYOC), or self-hosted on Kubernetes, on-premises or in hybrid setups.
Cockroach Labs, Inc. is a private US company headquartered in New York and falls under US jurisdiction, including the CLOUD Act. The cloud service offers European regions, including Frankfurt, Ireland and Paris, which allows you to keep data within Europe. The project began in 2014 as open source under Apache 2.0; releases from 18 November 2024 (v24.3) are published under the CockroachDB Software License. That is a source-available, proprietary licence and not open source. Self-hosting therefore still depends on the licence terms of a US vendor.