Stack Auth vs Firebase Authentication

Learn how Stack Auth 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.

Stack Auth

Open-source authentication platform for developers

Visit Stack Auth Read more

Details:

B2B
Yes
B2C
Yes
Open Source
Yes
Self-hosted
Yes

View Repository

Firebase Authentication

Secure multi-platform authentication in under 10 lines

Visit Firebase Authentication Read more

Details:

B2B
Yes
B2C
Yes
Open Source
No
Self-hosted
No

Feature Comparison

Both tools offer comparable feature coverage, with Stack Auth supporting 22 features and Firebase Authentication supporting 22. Consider your specific needs regarding authentication, enterprise auth, security, user management and extensibility when making your decision. Stack Auth fully covers extensibility, and both tools fully cover branding.

Passwordless Authentication

Stack Auth

Firebase Authentication

Social Connections

Stack Auth

Firebase Authentication

Passkeys

Stack Auth

Firebase Authentication

Long Lived Sessions

Stack Auth

Firebase Authentication

Session Management

Stack Auth

Stack automatically manages refresh and access tokens, JWTs and cookies for user sessions

Firebase Authentication

Multi-Language

Stack Auth

Firebase Authentication

Email templates and FirebaseUI can be localized; set the language with a `languageCode` property or override CSS for more than 40 languages

	Stack Auth	Firebase Authentication
Passwordless Authentication
Social Connections
Passkeys
Long Lived Sessions
Session Management	Stack automatically manages refresh and access tokens, JWTs and cookies for user sessions
Multi-Language		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 Stack Auth, supporting 6 certifications and regulatory frameworks compared to 0 for Stack Auth. Since Stack Auth is open source and does not include compliance certifications, you’ll need to manage compliance yourself.