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%