Firebase Authentication
Cloud-hosted authentication platform for managing user access in mobile and web applications
- Also known as
- firebase-authentication
Available worldwide · Popular in: US
What is Firebase Authentication?
Firebase Authentication is a managed identity service supporting phone-based SMS authentication, SAML, and OpenID Connect. It offers a free tier with a 50K monthly active user limit or pay-as-you-go usage-based billing.
Firebase Authentication pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
Free Spark plan with 50K monthly active users. Blaze plan uses pay-as-you-go pricing.
Spark
FreeFree tier with usage limits
- saml_oidc_users
- 50
- monthly_active_users
- 50K
Blaze
Pay-as-you-go with Spark free tier limits included, then usage-based billing
- saml_oidc_users
- 50
- monthly_active_users
- 50K
What Firebase Authentication does
The capabilities that matter for auth & identity software, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Hosting
- Cloud only
- Social login
- ✓
- Passwordless
- ✓
- Passkeys / WebAuthn
- -
- Multi-factor auth
- -
- SAML SSO
- ✓
- SCIM provisioning
- -
- B2B / multi-tenancy
- -
- OpenID Connect provider
- ✓
- Hosted UI
- Both
- RBAC
- -
- Self-hostable OSS core
- ✗
Platform & deployment
Independently observed- CLI
- iOS
- Web
- Android
- Cloud / SaaS
Integrations (7)
Independently observed- Google Cloud•
- Cloud Run•
- Cloud Build•
- Cloud Logging•
- Cloud Secrets Manager•
- BigQuery•
- Cloud SQL•
Firebase Authentication FAQ
Common questions about Firebase Authentication, answered from independent, dated evidence.
What is Firebase Authentication?
Firebase Authentication is a managed identity service supporting phone-based SMS authentication, SAML, and OpenID Connect. It offers a free tier with a 50K monthly active user limit or pay-as-you-go usage-based billing. It is indexed under Auth & Identity Software.
Is Firebase Authentication free?
Firebase Authentication offers a free tier, so you can start without paying. Paid plans are also available: Spark and Blaze. Pricing changes often, so verify at source before relying on it.
What platforms does Firebase Authentication support?
Firebase Authentication supports the web, iOS, Android and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Can Firebase Authentication be self-hosted?
We have only confirmed a cloud / SaaS deployment for Firebase Authentication, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.
What does Firebase Authentication integrate with?
We have confirmed 7 integrations for Firebase Authentication, including Google Cloud, Cloud Run, Cloud Build, Cloud Logging, Cloud Secrets Manager, BigQuery and Cloud SQL. This is what we could verify from public sources, so the vendor may support others we have not indexed.
Where is Firebase Authentication available?
Firebase Authentication is available worldwide. Its primary market is the United States.
Firebase Authentication alternatives
Other auth & identity software we track, ranked by the same independent score.
- Auth0A comprehensive authentication and authorization platform for applications and AI agentsmedium · 73%
- DescopeUnified identity management platform for customers, partners, and AI agentsmedium · 71%
- OryCloud-native identity and access management platform supporting users, AI agents, and machine-to-machine systems with centralized authentication and granular pemedium · 69%
- WorkOSEnterprise-grade identity and access management for applicationsmedium · 71%
- KindeAuthentication service that enhances security, improves user conversion, reduces implementation costs, and deploys quicklymedium · 68%
- ClerkComplete authentication and user management platform for applicationsmedium · 72%
Compare Firebase Authentication
Side by side against other auth & identity software, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Firebase Authentication, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Reliability | 50 | 0.09 | 4.7 | ✓ |
| Pricing transparency | 80 | 0.05 | 4.2 | ✓ |
| Price level | 80 | 0.04 | 3.4 | ✓ |
| Capabilities | 67 | 0.05 | 3.4 | ✓ |
| Integrations | 26 | 0.05 | 1.3 | ✓ |
| Security posture | 0 | 0.21 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 6 items | mediumsource · 2026-09-10 · 58% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Oidc: Yes · Hosting: cloud · Saml sso: Yes · Hosted ui: both · Open source: No · Passwordless: Yes | mediumsource · 2026-09-04 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 7 | mediumsource · 2026-09-04 · 60% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | mediumsource · 2026-09-04 · 50% |
Pricing
Reliability
| Attribute | Value | Evidence |
|---|---|---|
| Status page | Yes | mediumsource · 2026-08-01 · 60% |
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