Auth0vsFirebase Auth

Side-by-side API comparison

Flexible identity platform with universal login, MFA, social connections, and enterprise SSO.

Google-backed auth service with email/password, phone, and social provider sign-in out of the box.

Performance

Auth0Firebase Auth

30-Day Uptime99.95%99.99%

Avg Latency52ms35ms

GitHub Stars2.0k4.8k

Auth0Firebase Auth

Auth TypeOAuth 2.0JWT

Pricing Modelfreemiumfreemium

OpenAPI Spec

CategoryAuthenticationAuthentication

Auth0Firebase Auth

Languages

javascriptpythonrubyphpjavagodotnetswiftkotlin

javascriptpythonjavagoswiftkotlindotnet

Auth0Firebase Auth

Free

7,500 MAU req/mo

Essentials

$35/mo

500 MAU req/mo

Enterprise

Custom

Unlimited req/mo