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Distributed Scale

Scale Postgres by distributing data & queries. You can start with a single Citus node, then 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 to Postgres that gives you the superpower of distributed tables. Because Citus is an extension, you can leverage the Postgres features, tooling, and ecosystem you love. And in Citus 11, you can now query from any node—plus we’ve open sourced the few remaining Citus Enterprise features. With Citus, you can scale from a single node to a distributed cluster, giving you all the greatness of Postgres—at any scale.

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Applications That Love Citus

Ready to get started?

Why Shard Postgres? Performance

See how Citus gives this application ~20X faster transactions and 300X – 150,000X faster analytics queries.

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

A side-by-side comparison of Citus vs. single-node Postgres, comparing the performance of transactions, analytical queries, and analytical queries with rollups.

How to Get Citus

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Citus Open Source

With Citus, you extend Postgres with superpowers like distributed tables, distributed SQL query engine, columnar, & more.

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Citus on Azure

You can also spin up a Citus cluster in the cloud on Azure, with Hyperscale (Citus) in Azure Database for PostgreSQL.

Ready To Get Started With Citus?