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BaaS + hosting · Backend & Databases

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Firebase (Spark plan) free tier

Google's app backend: static hosting, auth and Firestore on the free Spark plan.

Checked against Firebase (Spark plan)'s official pages on 1 Nov 2026. Free tiers change, so confirm before you commit.

What Firebase (Spark plan)'s free plan gives you

10 GB hosting storage with 360 MB/day transfer, 1 GiB Firestore with 50K reads/day, and 50K auth users per month.

Firebase (Spark plan) free plan limits
LimitFree plan
Hosting10 GB storage, 360 MB/day transfer
Firestore1 GiB, 50K reads / 20K writes per day
Realtime DB1 GB, 100 connections
Auth50K MAU
Cloud FunctionsNot on Spark (Blaze only)

The catch

Cloud Functions, App Hosting and (for new projects) Cloud Storage need the pay-as-you-go Blaze plan.

Pros and cons

Good

  • No card on Spark
  • Good auth and Firestore quotas
  • Free SSL on custom domains

Watch out

  • No server code on free
  • Daily caps reset per day
  • Vendor lock-in

How to start on Firebase (Spark plan)

  1. 1

    Create a project in the Firebase console

  2. 2

    Install the CLI with npm i -g firebase-tools

  3. 3

    Run firebase init hosting

  4. 4

    Run firebase deploy

  5. 5

    Add Auth or Firestore from the console

Firebase (Spark plan) compared

Firebase (Spark plan): questions

Is Firebase (Spark plan) free?

10 GB hosting storage with 360 MB/day transfer, 1 GiB Firestore with 50K reads/day, and 50K auth users per month. Free plan ends: Never.

Does Firebase (Spark plan) need a credit card?

No, you can sign up for Firebase (Spark plan)'s free plan without a card.

What is the catch with Firebase (Spark plan)'s free plan?

Cloud Functions, App Hosting and (for new projects) Cloud Storage need the pay-as-you-go Blaze plan.

Can I use my own domain on Firebase (Spark plan) for free?

Yes, you can connect your own domain on the free plan. You also get a free address at *.web.app and *.firebaseapp.com.

What are the best free alternatives to Firebase (Spark plan)?

Cloudflare D1, Turso, Upstash. Compare their limits on this page or open each one for details.

Alternatives to Firebase (Spark plan)

  • Cloudflare D1

    Serverless SQLite

    100

    SQLite databases that run alongside Cloudflare Workers on the free Workers plan.

    Databases
    10
    Storage
    5 GB total
    Row reads
    5M / day

    The catch: Only 100,000 row writes per day, which resets daily.

    No cardNo end date
    Paid from $5/mo (Workers Paid)
  • Turso

    Edge SQLite

    92

    Hosted SQLite (libSQL) with many small databases and edge replicas.

    Databases
    100
    Storage
    5 GB
    Row reads
    500M / month

    The catch: Only one day of point-in-time restore on the free plan.

    No cardNo end date
    Paid from $4.99/mo (Developer)
  • Upstash

    Serverless Redis

    92

    Serverless Redis you call over HTTP, priced per request.

    Data size
    250 MB
    Commands
    500K / month
    Bandwidth
    10 GB / month

    The catch: 500K commands a month runs out fast if you poll or cache every request.

    No cardNo end date
    Paid from $10/mo (Fixed 250 MB (or pay as you go $0.20 per 100K commands))
  • MongoDB Atlas

    Managed MongoDB

    87

    Hosted MongoDB with a free shared cluster that has no end date.

    Storage
    512 MB
    Throughput
    Up to 100 ops/sec
    Connections
    500

    The catch: 512 MB fills quickly, and there is a 100 ops/sec cap.

    No cardNo end dateSleeps when idle
    Paid from Usage-based
  • Neon

    Serverless Postgres

    87

    Serverless Postgres with branching that scales to zero when unused.

    Compute
    100 CU-hours / project / month, up to 2 CU (8 GB RAM)
    Storage
    1 GB per project, 20 GB total
    Projects
    100

    The catch: Only 1 GB of storage per project.

    No cardNo end dateSleeps when idle
    Paid from Usage-based
  • Supabase

    Postgres BaaS

    87

    Open-source backend built on Postgres, with auth, storage and edge functions.

    Projects
    2 active
    Database
    500 MB per project
    File storage
    1 GB

    The catch: Free projects pause after a week without activity.

    No cardNo end dateSleeps when idle
    Paid from $25/mo (Pro)

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