Auth & Identity

Firebase Auth

Drop-in authentication from Google Firebase with generous free tier and easy social login.

Status
Generally available
Last checked
Checked · Oct 12, 2026
License
Proprietary
Pricing
Free tier · from $0 (pay for phone auth/Identity Platform)

What it is

Firebase Authentication provides email/password, phone, and social login with tight integration into the Firebase/Google Cloud ecosystem.

Free social/email auth at scale with native Firebase/GCP integration.

When it fits — and when it doesn’t

A good fit for

  • Mobile and web apps already on Firebase

    Native integration with Firestore and GCP

  • Side projects needing free auth

    Free email/social at any scale

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Lock-in to Firebase/Google

    Best value only inside the Firebase ecosystem

  2. 02

    Limited enterprise SSO without Identity Platform

    SAML/OIDC requires the paid Identity Platform upgrade

What it does well

  • Generous free tier

    Email and social auth are free at essentially any scale

  • Tight Firebase/GCP integration

    Works seamlessly with Firestore security rules and Google Cloud

  • Fast to integrate

    Drop-in SDKs for web and mobile

Pricing

Free tier
YesUnlimited email/social auth; phone auth metered
Paid from
$0 (pay for phone auth/Identity Platform)
Model
Usage-based
Enterprise plan
Yes

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up Firebase Auth

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →
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Firebase Auth — tracked on AI Navigator

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