authentik vs Auth0 -- Open Source IAM Compared
authentik vs Auth0 (2026)
authentik (open source iam) and Auth0 (identity & access management) are cybersecurity tools that serve different segments of the market. authentik is self-hosted with open source + enterprise pricing and is best suited for teams wanting a modern, developer-friendly open-source identity provider with easy deployment. Auth0 offers cloud-hosted with per monthly active user (mau) pricing and targets saas teams that need customer login with a great developer experience.
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The Verdict
authentik has an advantage for budget-conscious teams as an open-source option, while Auth0 is a commercial product with per monthly active user (mau) pricing. authentik supports self-hosted deployment for organizations that need full infrastructure control, whereas Auth0 is cloud-only. Ultimately, the right choice depends on your organization's specific requirements, compliance needs, and existing technology stack.
Tried authentik or Auth0? Drop a quick rating.
authentik vs Auth0 at a Glance
| authentik | Auth0 | |
|---|---|---|
| Category | Open Source IAM | Identity & Access Management |
| Pricing | Free (Open Source) / Enterprise from contact | Free up to 25,000 MAUs; B2C paid from $35/mo; B2B paid from $150/mo |
| Pricing Model | Open Source + Enterprise | Per monthly active user (MAU) |
| Open Source | Yes | No |
| Cloud Hosted | No | Yes |
| Self-Hosted | Yes | No |
| Founded | 2020 | 2013 |
| Rating | — | 4.3/5 |
Feature Comparison
Key capabilities of authentik and Auth0 compared side by side.
authentik
- +SAML, OAuth2, OpenID Connect support
- +LDAP and RADIUS provider
- +SCIM provisioning
- +Multi-factor authentication
- +User self-service portal
- +Application proxy with forward auth
- +Policy engine with flows
- +Customizable login flows
Auth0
- +Universal Login with customizable UI
- +Social connections (Google, Apple, GitHub, 30+ providers)
- +Passwordless authentication (email, SMS, magic links)
- +Multi-factor authentication
- +Role-based and fine-grained access control
- +Actions and Rules for custom auth logic
- +Organizations feature for B2B multi-tenancy
- +Machine-to-machine auth for APIs
- +Attack protection (brute force, breached password detection)
- +SDKs for React, Vue, Angular, Node, Python, Go, .NET
Key Differentiators
Unique to authentik
- SAML, OAuth2, OpenID Connect support
- LDAP and RADIUS provider
- SCIM provisioning
- User self-service portal
Unique to Auth0
- Social connections (Google, Apple, GitHub, 30+ providers)
- Role-based and fine-grained access control
- Actions and Rules for custom auth logic
- Organizations feature for B2B multi-tenancy
When to Choose Each
Choose authentik if...
- →You need a tool best suited for teams wanting a modern, developer-friendly open-source identity provider with easy deployment
- →You want an open-source solution with full code transparency
- →You require self-hosted deployment for data sovereignty
- →Open Source + Enterprise pricing fits your budget model
Choose Auth0 if...
- →You need a tool best suited for saas teams that need customer login with a great developer experience
- →Per monthly active user (MAU) pricing fits your budget model
Compliance & Certifications
authentik
No certifications listed
Auth0
Pros & Cons Comparison
Auth0
Pros
- +Excellent developer experience and documentation
- +Generous free tier covers most early-stage apps
- +Extensive SDKs for every major framework
- +Actions and Rules allow flexible custom logic
Cons
- –Pricing gets expensive fast past the free tier
- –Okta acquisition raised long-term pricing concerns
- –B2B pricing tier jumps sharply for simple orgs support
- –Admin UI can feel dense for non-developer users
authentik
Pros
- +Fully open source with active development
- +Modern, polished admin UI
- +Supports all major identity protocols
- +Easy Docker/Kubernetes deployment
- +Flexible flow-based authentication engine
Cons
- –Younger project than Keycloak
- –Smaller community and ecosystem
- –Enterprise features require paid license
- –Limited enterprise support options
Other authentik Alternatives
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Sources & References
- authentik (Official Site)[Vendor]
- authentik Reviews on G2[User Reviews]
- authentik Reviews on TrustRadius[User Reviews]
- authentik Reviews on PeerSpot[User Reviews]
- Auth0 (Official Site)[Vendor]
- Auth0 Reviews on G2[User Reviews]
- Auth0 Reviews on TrustRadius[User Reviews]
- Auth0 Reviews on PeerSpot[User Reviews]
- Gartner Magic Quadrant for Access Management 2024[Analyst Report]
- Forrester Wave: Identity-As-A-Service (IDaaS), Q4 2024[Analyst Report]
- KuppingerCole Leadership Compass: Access Management 2024[Analyst Report]
- NIST SP 800-63: Digital Identity Guidelines[Government Standard]
- FIDO Alliance: Passwordless Authentication Standards[Industry Standard]
- Gartner Peer Insights: Access Management[Peer Reviews]
authentik vs Auth0 FAQ
Common questions about choosing between authentik and Auth0.
What is the main difference between authentik and Auth0?
authentik (open source iam) and Auth0 (identity & access management) are cybersecurity tools that serve different segments of the market. authentik is self-hosted with open source + enterprise pricing and is best suited for teams wanting a modern, developer-friendly open-source identity provider with easy deployment. Auth0 offers cloud-hosted with per monthly active user (mau) pricing and targets saas teams that need customer login with a great developer experience.
Is Auth0 a good alternative to authentik?
authentik has an advantage for budget-conscious teams as an open-source option, while Auth0 is a commercial product with per monthly active user (mau) pricing. authentik supports self-hosted deployment for organizations that need full infrastructure control, whereas Auth0 is cloud-only. Ultimately, the right choice depends on your organization's specific requirements, compliance needs, and existing technology stack.
How does Auth0 pricing compare to authentik?
authentik pricing: Free (Open Source) / Enterprise from contact (open source + enterprise). Auth0 pricing: Free up to 25,000 MAUs; B2C paid from $35/mo; B2B paid from $150/mo (per monthly active user (mau)). The best option depends on your team size, usage patterns, and whether you need cloud-hosted, self-hosted, or hybrid deployment.
Can I migrate from authentik to Auth0?
Migration from authentik to Auth0 is possible and depends on your specific setup. Both platforms offer APIs that can facilitate data migration. Consider running both tools in parallel during transition to ensure continuity. Check each vendor's migration documentation for specific guidance.
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