As your product grows, read volume can start to outpace what a single primary database can handle. Analytics queries slow down, features lag, and you face difficult trade-offs: wasteful always-on replicas, expensive vertical scaling, or even a dreaded re-architecture project.
This is where Springtail can help.
Springtail adds read capacity to Supabase that scales with your workload. Quickly spin up replicas when demand increases and scale down when demand drops — all without code changes or additional infrastructure to manage.
With Springtail, Supabase users can:
Springtail connects to your Supabase Postgres database using logical replication. It maintains a real-time copy of your data and manages replica lifecycle, scaling, and load balancing behind a single endpoint.
Your application simply connects to Springtail's Postgres-compatible coordinator, which automatically:
From your application's perspective, nothing changes. Springtail is completely transparent, giving you highly scalable read capacity with near-zero dev effort.
Traditional read replicas must copy the entire dataset before serving queries, which makes them slow to start. Springtail uses a shared storage layer across replicas, allowing each new replica to access data immediately.
This means replicas can start in seconds, giving you extra capacity when you need it, and letting you scale down just as easily when demand drops.
The result? Elastic read scaling that matches demand so you only pay for replicas when you need them. No more over-provisioning or added complexity.
Supabase developers use Springtail for all kinds of read-intensive workloads.
Run complex analytical queries or nightly batch jobs on dedicated replicas without impacting production workloads.
Scale read capacity during launches, viral moments, or seasonal peaks, then scale back down to save costs.
Efficiently serve dashboards, product catalogs, or user profiles that see high read volume with minimal writes.
Setup takes as little as 15 minutes.
Explore our docs or talk to us to get started. We’d love to hear what you’re building and help you keep scaling with Supabase.
