Authelia vs Firebase Authentication
Learn how Authelia and Firebase Authentication differ in their key features like authentication, enterprise auth, security, user management and compliance, so you can decide which of these authentication providers is best for you.
Authelia

Feature Comparison
Both tools offer comparable feature coverage, with Firebase Authentication supporting 25 features and Authelia supporting 20. Consider your specific needs regarding authentication, enterprise auth, security, user management and extensibility when making your decision. Both tools fully cover branding.
Supports FIDO2 security keys and passkeys so users can register multiple WebAuthn credentials and authenticate with a passkey
Sessions can be configured with custom expiration, inactivity and remember‑me lifetimes allowing long‑lived sessions
Provides translations of the login portal and a language picker with support for multiple locales
Email templates and FirebaseUI can be localized; set the language with a `languageCode` property or override CSS for more than 40 languages
| Authelia | Firebase Authentication | |
|---|---|---|
Supports FIDO2 security keys and passkeys so users can register multiple WebAuthn credentials and authenticate with a passkey | ||
Sessions can be configured with custom expiration, inactivity and remember‑me lifetimes allowing long‑lived sessions | ||
Provides translations of the login portal and a language picker with support for multiple locales | Email templates and FirebaseUI can be localized; set the language with a `languageCode` property or override CSS for more than 40 languages | |
Compliance Comparison
Firebase Authentication offers significantly broader coverage than Authelia, supporting 6 certifications and regulatory frameworks compared to 0 for Authelia. Since Authelia is open source and does not include compliance certifications, you’ll need to manage compliance yourself.
| Compliance | Authelia | Firebase Authentication |
|---|---|---|
