Free Tier Tracker

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Firebase Free Tier Limits

Firebase spreads Spark free allowances across Hosting, Authentication, Firestore, Realtime Database and App Hosting. This page collects the 5 Firebase products we track. Last checked . Always confirm at the source.

ProductCategoryFree limitsChecked
Firebase App HostingHostingOutgoing bandwidth: No-cost up to 10 GiB / month
Storage: No-cost up to 5 GB
source
Firebase AuthenticationAuthMAU: 50,000
SAML/OIDC MAU: 50
Phone auth: Billed per SMS
source
Firebase Cloud Firestore (Spark)DatabasesStored data: 1 GiB
Network egress: 10 GiB / month
Document reads: 50K / day
Document writes: 20K / day
Document deletes: 20K / day
source
Firebase Hosting (Spark)HostingStorage: 10 GB
Data transfer: 360 MB / day
Custom domain & SSL: Included
Multiple sites per project: Yes
source
Firebase Realtime Database (Spark)DatabasesSimultaneous connections: 100
Stored data: 1 GB
Downloads: 10 GB / month
Databases per project: 1
source

FAQ

What does Firebase's free Spark plan include?

We track 5 Firebase products with free usage: Firebase App Hosting, Firebase Authentication, Firebase Cloud Firestore, Firebase Hosting, Firebase Realtime Database. Limits are copied from Google's Firebase pricing docs and dated.

Is Firestore free forever on Spark?

Spark includes free daily/stored quotas that reset; exceeding them typically blocks further use of that product until the next day or you upgrade. Confirm each row's source.

How does Firebase compare to Cloudflare or Upstash free tiers?

Firebase Spark is a multi-product BaaS bundle (hosting, auth, databases). Cloudflare and Upstash publish per-product free caps; see the Cloudflare and Upstash hubs on this site.

See also: Cloudflare Free Tier · Upstash Free Tier · Daily Limits