Firebase Realtime Database (Spark)

Explore this developer service’s ongoing no-cost allowance, restrictions and official documentation before deploying.

INCLUDED FREE ALLOWANCEFirebase Realtime Database on Spark: 1 GB stored, 10 GB downloaded/month and 100 simultaneous connections

View official documentation

Plan details

What do these plan and deployment labels mean?

Plan: Ongoing free allowance
Deployment model: Cloud
Credit card: Not required
Commercial use: Check provider
Added to directory (UTC): 2026-09-22
Last checked: 2026-10-31

Important restrictions

Spark requires no payment method and does not support multiple Realtime Database instances in one project. The 10 GB download quota is monthly (Blaze uses a different daily free allowance); excess Spark usage is restricted rather than silently becoming paid. Firebase Hosting and other products have separate limits.

View official documentation

Independent community listing, not affiliated with the provider. Always check the latest billing policy and quotas before enabling paid usage.