Free
$0
month
Up to 25,000 monthly active users. Includes one custom domain, passwordless authentication, unlimited social connections, five organizations, basic attack protection, and community support.
Check current pricing →A
Auth0
Auth0 is an identity platform for customer authentication, authorization, single sign-on, MFA, passwordless access, and protected APIs.
Editorial overview
Aggregated Overview
Auth0 provides broad customer identity capabilities, standards-based APIs, SDKs, application quickstarts, extensibility tools, and marketplace integrations. G2 reported strong user sentiment, while pricing becomes more complex across usage levels and advanced features.
This profile combines documented product information and independent evidence where available. It is not a hands-on test unless TechZella explicitly identifies one.
Auth0 Decision Snapshot
A quick way to understand who this product may suit, where its limits matter, and which facts are most relevant before you compare alternatives.
Platforms
Android, API, Desktop, iOS, macOS, Native mobile
TechZella assessment
8.4/10
Overview
Auth0 is a cloud identity platform for applications, APIs, and customer-facing services. It supplies hosted authentication, authorization, user management, and identity federation capabilities.
The platform supports Universal Login, social and enterprise identity providers, passwordless authentication, multi-factor authentication, passkeys, organizations, role-based access control, and machine-to-machine authentication.
Auth0 was founded in 2013 by Eugenio Pace and Matias Woloski. Okta completed its acquisition of Auth0 in May 2021, and the product is now positioned within Okta’s Customer Identity Cloud.
Auth0 Pros & Cons
Pros
- Broad customer identity feature coverage.
- Standards-based APIs, protocols, SDKs, and quickstarts.
- Hosted login reduces custom authentication development.
- Supports B2C, B2B, API, and machine-to-machine use cases.
- Free plan available for early-stage projects.
Cons
- Advanced features and higher limits can require expensive paid plans.
- Pricing depends on usage, plan, features, and deployment model.
- Complex identity configurations require specialized technical knowledge.
- Free Universal Login pages include Auth0 branding.
Auth0 Pricing & Plans
Essentials
$35
month
For projects with higher production demands. Adds higher limits, pro MFA, organization-level RBAC, ten organizations, log streaming, separate environments, and standard support.
Check current pricing →Professional
$240
month
Adds custom database connections, enterprise MFA, custom token exchange, enhanced attack protection, and machine-to-machine token options.
Check current pricing →Enterprise
Custom
Includes custom user and SSO tiers, a 99.99% SLA, enterprise rate limits, advanced administration, and enterprise support.
Check current pricing →Pricing may change. Verify current plans on the vendor's website.
Auth0 Features
Authentication
- Universal Login
- Social authentication
- Enterprise federation
- Passwordless authentication
- Passkeys
- Single sign-on
- Multi-factor authentication
Authorization and Access Control
- OAuth 2.0 access tokens
- OpenID Connect
- Role-based access control
- Organizations
- Machine-to-machine authentication
- API access control
Security
- Breached-password detection
- Attack protection
- Adaptive MFA options
- Custom domains
- FAPI support
- Audit log streaming
Extensibility
- Actions
- Forms
- Auth0 Marketplace integrations
- Custom database connections
- Custom social connections
- Custom token exchange
Developer Tools
- Authentication API
- Management API
- My Account API
- My Organization API
- Official SDKs
- Application quickstarts
Integrations
- Amazon Web Services
- AWS API Gateway
- Azure API Management
- Google Cloud Endpoints
- Apigee
- Vercel
- Netlify
- Datadog
- Splunk
- Microsoft Entra ID
- Google Workspace
Alternatives
Amazon Cognito is a comparable managed identity service, especially for applications already built around AWS services and API Gateway.
Microsoft Entra External ID provides customer-facing identity capabilities within Microsoft’s identity ecosystem and supports customized sign-in experiences for external users.
Okta Customer Identity Cloud is the closest product relationship because Auth0 powers the customer identity offering within Okta’s portfolio.
Clerk, Firebase Authentication, Supabase Auth, PingOne for Customers, and ZITADEL are other comparable options for application authentication and customer identity management.
Auth0 Specifications
| Product type | Customer identity and access management software |
|---|---|
| Deployment | Public cloud, private cloud, and private deployment options |
| Supported protocols | OAuth 2.0, OpenID Connect, SAML, FAPI, WebAuthn and JWT |
| API | Authentication, Management, My Account and My Organization APIs |
| Integrations | Auth0 Marketplace, enterprise identity providers, cloud platforms, API gateways, observability tools and marketing systems |
| Application support | Single-page web, regular web, native mobile, desktop and backend API applications |
| Free plan | Yes, up to 25,000 monthly active users |
| Free trial | 22 days |
| Parent company | Okta, Inc. |
| Founded | 2013 |
Our evidence-based assessment
TechZella Score
A proprietary editorial score based on product capabilities, usability, value, performance, support and user sentiment evidence.
8.4/10Moderate confidence
Auth0 provides broad customer identity capabilities, standards-based APIs, SDKs, application quickstarts, extensibility tools, and marketplace integrations. G2 reported strong user sentiment, while pricing becomes more complex across usage levels and advanced features.
Methodology v1.0. The assessment weighs feature coverage (25%), ease of use (15%), value for money (20%), performance (15%), support (10%) and user sentiment (15%), using researched product evidence and verified review evidence where available. It is a TechZella editorial assessment, not a direct user-review average.
Community feedback
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FAQ
What is Auth0 used for?
Auth0 is used to add customer login, registration, authorization, single sign-on, MFA, passwordless access, and API protection to applications.
Does Auth0 have a free plan?
Yes. The official pricing page lists a Free plan with up to 25,000 monthly active users and selected identity features.
Does Auth0 offer a free trial?
Yes. Auth0 states that its trial period lasts 22 days, after which the Free plan activates automatically.
Which APIs does Auth0 provide?
Auth0 documents Authentication, Management, My Account, and My Organization APIs. These APIs support identity flows, tenant administration, self-service account functions, and organization-scoped administration.
Which protocols does Auth0 support?
Auth0 supports OAuth 2.0, OpenID Connect, SAML, and FAPI-related identity flows. The available protocols depend on the specific feature and configuration.
Can Auth0 protect APIs?
Yes. Auth0 can issue access tokens and provide libraries, middleware, and documentation for protecting backend services and APIs.
Who owns Auth0?
Okta completed its acquisition of Auth0 in May 2021. Auth0 remains the name of the customer identity platform and product line.