citus

The premium Open Source alternative to Google Cloud Spanner

🎯 Best for:Multi-tenant SaaS applications that have outgrown a single PostgreSQL instance.

What is citus?

Replaces single-node PostgreSQL limitations by distributing data and queries across a cluster of machines. Maintains full relational database features while providing horizontal scalability for multi-tenant applications.

Tech Stack
CDatabase & Storage

Why citus?

  • Horizontal Postgres scaling
  • Distributed query engine
  • Maintains ACID compliance

Limitations

  • Sharding key constraints
  • Complex data rebalancing
  • Extension overhead
3/5/2026
Last Update
754
Forks
1,043
Issues
AGPL-3.0
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to citus instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on Google Cloud Spanner)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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