Auth0 vs Zitadel
On the evidence we track, Auth0 leads this comparison with a composite score of 89/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for auth & identity software. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Auth0
LeaderA managed authentication service that handles user identity verification, single sign-on, and API security. Supports passwordless login, multi-factor authentication, role-based access control, and machine-to-machine authentication with enterprise-grade features for compliance and security.
Zitadel
A multi-tenant, API-first identity and access management platform offering single sign-on, multi-factor authentication, passkeys, and complete audit trails. Available as a managed cloud service or self-hosted deployment, designed for developers building secure SaaS and B2B applications.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Auth0
LeaderFree tier up to 25k MAU, then $35–$240/month. Pricing based on monthly active users.
- FreeFree
- 1 Custom Domain
- Passwordless Authentication
- Unlimited Social Connections
- 5 Organizations
- Brand Customization
- +5 more
- Essentials$35/month, up to 500 monthly active users
- Everything in Free
- Higher Auth and API limits
- Pro Multi-Factor Authentication
- Role-based Access Control per Organization
- 10 Organizations
- +3 more
- Professional$240/month, up to 500 monthly active users
- Everything in Essentials
- Use existing User Database for Logins
- Enterprise Multi-Factor Authentication
- Enhanced Attack Protection
- Machine-to-Machine Tokens
- EnterpriseContact sales
- Everything in Professional
- Custom User & SSO Tiers
- 99.99% SLA
- Enterprise Rate Limits
- Enterprise Administration & Support
- +1 more
Zitadel
Free tier available. Pro plan from $100/month with 25,000 DAU included. Usage-based overage pricing for additional capacity.
- FreeFree
- 100 daily active users
- 3 external identity providers
- 5,000 management API requests
- Community support
- 1 management instance
- Pro$100/month including 25,000 DAU and 500,000 API requests; overage pricing available
- 25,000 daily active users
- 500,000 management API requests
- 3 external identity providers
- Multifactor authentication
- Passkeys/WebAuthn
- +5 more
- EnterpriseContact sales
- Custom scaling
- Custom compliance
- Custom security questionnaires
- Custom contract and MSA
- Up to 99.99% availability SLA
- +1 more
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
Auth0
Leader- Datadog
- Splunk
- AWS
- Azure
- Slack
- Segment
- Salesforce
- Tealium
- Web3Auth
- Spruce ID
- Unstoppable Domains
- Dock.io
- Ethereum Name Service
- NFT services
Zitadel
- Microsoft
- GitHub
- LDAP
- SAML 2.0
- SCIM 2.0
- OpenID Connect
- gRPC
- connectRPC
- REST API
- Webhooks
- Actions
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.