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Firebase Firestore

Databases Free key (no card)

AuthenticationFree key (no card)
Rate limitFree Spark plan: 1 GiB storage, 50k reads/day, 20k writes/day, 20k deletes/day, 10 GiB/month transfer.

Documentation: firebase.google.com ยท Checked Sep 13, 2026

About

Firestore is Google's cloud database that stores data as flexible documents and syncs changes to apps in real time. The free Spark plan includes 1 GiB of storage, 50,000 reads and 20,000 writes per day. Plenty for prototypes and small apps. It pairs with Firebase's free login and hosting tools.

Details

Free to start. You may need a free key, but no credit card.

Auth: Free key (no card)

Rate limit: Free Spark plan: 1 GiB storage, 50k reads/day, 20k writes/day, 20k deletes/day, 10 GiB/month transfer.

Verified: 2026-09-13

Best for: developer

Read the docs Back to catalog

Setup

  1. Sign up at console.firebase.google.com and click Create a project.
  2. In Build > Firestore Database, click Create database.
  3. Start in test mode for development (lock down rules before launch).
  4. Add the Firebase SDK to your app and use the config keys from Project Settings.
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