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Distributed Scale

Scale out Postgres by distributing your data & queries across a cluster. And it’s simple to add nodes & rebalance shards when you need to grow.

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Parallelized Performance

Speed up queries by 20x to 300x (or more) through parallelism, keeping more data in memory, higher I/O bandwidth, and columnar compression.

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Power of Postgres

Citus is an extension (not a fork) to the latest Postgres versions, so you can use your familiar SQL toolset & leverage your Postgres expertise.

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Simplified Architecture

Reduce your infrastructure headaches by using a single database for both your transactional and analytical workloads.

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Open Source

Download and use Citus open source for free. You can manage Citus yourself, embrace open source, and help us improve Citus via GitHub.

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Managed Database Service

Focus on your application and forget about your database. Run Citus in the cloud as a built-in option on Azure Database for PostgreSQL.

Citus = Postgres At Any Scale

Citus is an open source extension that transforms Postgres into a distributed database. Because Citus is a Postgres extension, you can leverage the Postgres features, tooling, and ecosystem you love. Citus 10 adds new features like columnar storage and single-node Citus—plus we’re open sourcing the shard rebalancer. With Citus 10, you can scale from single-node Citus to a large distributed cluster. Which is why we now say: “Citus gives you Postgres at any scale.”


Applications That Love Citus

Ready to get started?

Why Scale Out Postgres?

Citus performance demo from SIGMOD, using the HammerDB benchmark.

YouTube video still: High performance PostgreSQL with Postgres & Hyperscale (Citus)

Watch a 15-min demo to see how Citus scales transactional throughput. Then watch Citus scale analytical query performance by parallelizing SQL queries across all the nodes in the Citus database cluster.

Three Ways to Get Citus

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Open Source

The Citus extension to Postgres is available as open source. And as of Citus 10, the Citus shard rebalancer is now open source, too.

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Citus on

Citus is available in the cloud as Hyperscale (Citus), a built-in option in the Azure Database for PostgreSQL managed service.

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Citus in
Azure Arc

In preview. Deploy Hyperscale (Citus) to on-prem, multicloud, & edge environments—with Kubernetes & infra of your choice.

Ready To Get Started With Citus?