Overview
Auth0 is an identity-as-a-service platform giving developers drop-in login, social auth, MFA, and role-based access control via SDKs and APIs, so applications don't need to build authentication and identity security from scratch. It's now owned by Okta.
Available On
WebAPI
Key Features
Universal login & social auth
Multi-factor authentication (MFA)
Role-based access control
SDKs for most major frameworks
Anomaly & breach detection
Pros
- Mature, well-documented platform with broad framework support
- Handles compliance-heavy auth requirements (MFA, SSO) out of the box
- Backed by Okta's security expertise post-acquisition
Cons
- Pricing based on monthly active users can get expensive at scale
- Configuration flexibility means a real setup learning curve
- Migrating away once deeply integrated is nontrivial
Pricing Plans
FreeFREE
Free
- Up to 25,000 monthly active users
- Social & database connections
- Universal login
EssentialsPAID
$35/mo
- MFA
- Custom domains
- Basic support SLA
User Reviews
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Integrations
ReactNext.jsAWSSlack
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Quick Info
Websiteauth0.com
CategorySecurity & Identity
Team SizeENTERPRISE
ReleasedJanuary 1, 2013
Last UpdatedJune 1, 2026
Monthly Visits15.0M
API AvailableYes
Open SourceNo
Compare Auth0
See how Auth0 stacks up against competitors side-by-side.
Auth0 vs ClerkAuth0 vs OktaBuild Custom ComparisonBest For
DevelopmentEnterprise