YugabyteDB

YugabyteDB is an open-source, distributed SQL database designed for cloud-native applications that need horizontal scalability, resilience, and geographic distribution — while keeping full PostgreSQL compatibility. It reuses the PostgreSQL query layer, so teams can use familiar SQL, drivers, and much of the Postgres ecosystem, but underneath it distributes data across nodes and regions for high availability and elastic scale without manual sharding. This makes it a strong fit for organizations that have outgrown single-node Postgres but want to keep Postgres compatibility.

The platform targets always-on, distributed workloads. It provides strong consistency and ACID transactions across a distributed cluster, automatic sharding and replication, and multi-region deployment options (including geo-partitioning for data residency and low latency). It supports both a PostgreSQL-compatible API (YSQL) and a Cassandra-compatible API (YCQL), and is delivered as open-source software you self-manage, or as YugabyteDB Aeon — the fully managed cloud DBaaS across AWS, Azure, and GCP with automated operations. Its Postgres compatibility plus distributed architecture is its core appeal.

YugabyteDB serves engineering teams building scalable, resilient, cloud-native applications on SQL. The open-source database is free to self-manage; YugabyteDB Aeon (managed) is usage-based via credits (100 consumption units = 1 credit = $1), with Standard and Professional plans and custom Enterprise, and Aeon pricing commonly starting around $2,000 per vCPU per year (plus storage and transfer), with a free sandbox cluster and a 14-day trial. It competes with CockroachDB, Amazon Aurora, PostgreSQL, and SingleStore, differentiating on open-source distributed SQL with strong PostgreSQL compatibility.