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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.
| Product | Category | Free limits | Checked |
|---|---|---|---|
| Firebase App Hosting | Hosting | Outgoing bandwidth: No-cost up to 10 GiB / month Storage: No-cost up to 5 GB | source |
| Firebase Authentication | Auth | MAU: 50,000 SAML/OIDC MAU: 50 Phone auth: Billed per SMS | source |
| Firebase Cloud Firestore (Spark) | Databases | Stored data: 1 GiB Network egress: 10 GiB / month Document reads: 50K / day Document writes: 20K / day Document deletes: 20K / day | source |
| Firebase Hosting (Spark) | Hosting | Storage: 10 GB Data transfer: 360 MB / day Custom domain & SSL: Included Multiple sites per project: Yes | source |
| Firebase Realtime Database (Spark) | Databases | Simultaneous 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