Firebase (Cloud Firestore) free tier and limits
Google's app platform: Firestore document database, Auth, Hosting and Cloud Messaging. Common in apps built with Firebase Studio.
What the free plan gives you
- Spark plan: no payment method needed
- Firestore: 1 GiB stored, 50K reads/day, 20K writes/day, 20K deletes/day
- 10 GiB/month network egress
- Hosting: 10 GB storage, 360 MB/day transfer
Best for
Mobile and realtime apps that fit a document model.
Watch out
Firestore free quotas are daily and reset at midnight. Cloud Functions are not available on Spark; you need Blaze, which requires a billing account.
Other database options
Supabase
Hosted Postgres with auth, storage, realtime and edge functions in one project. It is the backend Lovable and many Bolt apps connect to.
Free 500 MB database, 1 GB file storage, 5 GB egress plus 5 GB cached egress
Neon
Serverless Postgres that scales to zero when idle, with database branching. Works with any Postgres client or ORM (Prisma, Drizzle).
Free Up to 100 projects, no credit card required
Turso
Hosted SQLite-compatible databases. Lightweight enough to give every user or tenant their own database.
Free $0/month, no credit card required