Firebase free tier includes Spark plan, no payment method needed: Auth (50K MAU), Firestore (1 GiB stored, 50K reads/day, 20K…). Catalogue date August 2026. Compare with 13 alternatives in Databases.
Subtypes in Databases:document — schemaless JSON/BSON documents as the stored unit; backend_platform — bundles a database with auth, functions or storage as one product. We read that on 2026-08-31 from https://firebase.google.com/docs/firestore, where it says: “Use the flexible, scalable NoSQL cloud database from Google Cloud to store and sync data for client and server-side development.”How we use this.
Limits, pricing history, and 13 alternatives. Catalogue date August 2026. Last updated 2026-09-22.
Firebase's free tier offers Spark plan, no payment method needed: Auth (50K MAU), Firestore (1 GiB stored, 50K reads/day, 20K writes/day, 20K…). We rate it stable. One recorded limit reduction narrowed the terms, on 2026-02-03. Best for databases workloads — 13 alternatives available.
⚠️ Pricing change: Google announced the sunset of Firebase Studio (formerly Project IDX) on 2026-03-19. New workspaces and signups stopped on 2026-06-22, and Firebase Studio shuts down on 2027-03-22, when remaining data is deleted. Other Firebase products are not affected. Source ↗ (effective 2026-03-19)View in changelog →
The day we last read the vendor's page. Our last read of it, on 2026-09-22, found a change we then refused to record, because it restated the terms we already publish. We hold no confirmation of the terms we publish — the 2026-08-25 beside this date is not one we can source to a read that confirmed them.
Free Tier Details
Spark plan, no payment method needed: Auth (50K MAU), Firestore (1 GiB stored, 50K reads/day, 20K writes/day, 20K deletes/day), Hosting (10 GB storage, 360 MB/day transfer), and no-cost Analytics, Crashlytics and Cloud Messaging. Cloud Functions and Cloud Storage need the Blaze plan.
We read that on 2026-09-22 from https://firebase.google.com/pricing, and our check recorded: the page names Firebase as "firebase" and states "50K reads/day" and "50K read units/day". A source check reads the cited page for the service's name and a price; the limits above are from our own record.
When You'll Outgrow Firebase's Free Tier
At 1 GiB of Firestore data or 50K reads a day, you'll need Blaze.
At 50K MAU, you'll need to upgrade.
At that point, the 13 alternatives in Databases are each listed with the free tier they offer, so you can compare what they give you against what you have outgrown.
Google announced the sunset of Firebase Studio (formerly Project IDX) on 2026-03-19. New workspaces and signups stopped on 2026-06-22, and Firebase Studio shuts down on 2027-03-22, when remaining data is deleted. Other Firebase products are not affected. Source ↗
Before: Firebase Studio: cloud IDE with AI code generation, Gemini integration, multi-platform preview
After: "June 22, 2026: New workspace creation and user signup are disabled." "March 22, 2027: Firebase Studio is shut down, and all remaining data is permanently deleted and cannot be recovered."
Cloud Storage for Firebase now requires the pay-as-you-go Blaze plan, in effect from February 3, 2026. Projects on the no-cost Spark plan lose access to all Cloud Storage buckets, including default buckets; console access redirects to an upgrade page and API calls return 402 or 403. Provisioning a new default bucket also requires Blaze. Source ↗
Before: Spark plan included Cloud Storage with a *.appspot.com default bucket and no card required: 5 GB stored, 1 GB downloaded/day, 20,000 uploads/day, 50,000 downloads/day
After: Any Cloud Storage access requires the Blaze plan and a billing account. No-cost usage continues on Blaze: a legacy *.appspot.com default bucket keeps 5 GB stored, 1 GB downloaded/day, 20,000 uploads/day, 50,000 downloads/day; default buckets created after September 2024 are *.firebasestorage.app and follow Google Cloud Storage pricing with its Always Free tier in US-CENTRAL1, US-EAST1 and US-WEST1. Other Spark limits unchanged (Firestore, Auth, Hosting)
Recompute today's order yourself. The order above is a permutation seeded only on the UTC date and the query key — no vendor name, slug, id or offer field is an input. The list above is every one of the 7 entries in that order, not a prefix of it. The algorithm is published, so anyone can reproduce this page's order without asking us.
How Firebase compares against every one of the 13 we list, not against a selection of them. A surface with room for every member of a tied set may rotate their order. A surface with room for only some of them names none of them, because which ones it named would be the claim, and a claim seeded on the date is not the one we serve tomorrow. How we decide this.
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Recompute today's order yourself. The order above is a permutation seeded only on the UTC date and the query key — no vendor name, slug, id or offer field is an input. The list above is every one of the 13 entries in that order, not a prefix of it. The algorithm is published, so anyone can reproduce this page's order without asking us.
We do not push notifications. Every change we record is readable the moment it lands, and the JSON answer carries an ETag — send it back as If-None-Match and an unchanged answer costs one 304.
Firebase's free tier is called "Spark". Spark plan, no payment method needed: Auth (50K MAU), Firestore (1 GiB stored, 50K reads/day, 20K writes/day, 20K deletes/day), Hosting (10 GB storage, 360 MB/day transfer), and no-cost Analytics, Crashlytics and Cloud Messaging. Cloud Functions and Cloud Storage need the Blaze plan.
Is Firebase's free tier reliable?
Firebase's free tier is considered stable. One recorded limit reduction narrowed the terms, on 2026-02-03. See the pricing history below.
Is Firebase's free tier good for production?
Firebase's free tier can be suitable for small production workloads and side projects. We rate it stable and it offers Spark plan, no payment method needed: Auth (50K MAU), Firestore (1 GiB stored, 50K reads/day, 20K writes/day, 20K…), so it's a reasonable starting point. One recorded limit reduction narrowed the terms, on 2026-02-03. Monitor your usage against the limits and have an upgrade plan ready.
What changed in Firebase's pricing?
Firebase has had 2 recorded pricing changes. Most recently: Google announced the sunset of Firebase Studio (formerly Project IDX) on 2026-03-19. New workspaces and signups stopped on 2026-06-22, and Firebase Studio shuts down on 2027-03-22, when remaining data is deleted. Other Firebase products are not affected. Source: https://firebase.google.com/docs/studio/migrating-project (2026-03-19).
What are the best free alternatives to Firebase?
We publish no ranking of these. Nothing we record measures popularity or generosity, so naming a best or a top few would be our preference rather than our data. We hold 13 free alternatives to Firebase in Databases, each listed above with its tier. Of those, 11 carry no recorded demerit and are indistinguishable under every signal we hold, so they are listed in an order that rotates daily, 2 are demoted with the reason named. Our ranking rule is published at /criteria.
When will I outgrow Firebase's free tier?
At 1 GiB of Firestore data or 50K reads a day, you'll need Blaze. When you outgrow the free tier, evaluate paid plans against alternatives — sometimes a competitor's free tier covers what you need.
What category is Firebase in?
Firebase is categorized under Databases on AgentDeals. We list 13 other Databases services alongside it, every one of them on this page with its free tier and the stability we publish for it.
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