Casdoor vs Clerk: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
Casdoor
Casdoor is an open-source identity and access management platform with single sign-on supporting OAuth, OIDC, SAML, and multiple authentication methods.
Clerk
Clerk is a developer-friendly authentication platform with pre-built components, flexible APIs, and admin dashboards for complete user management.
Casdoor
Casdoor is an open-source identity and access management platform with single sign-on supporting OAuth, OIDC, SAML, and multiple authentication methods.
Clerk
Clerk is a developer-friendly authentication platform with pre-built components, flexible APIs, and admin dashboards for complete user management.
Casdoor
OAuth 2.0, OIDC, SAML, CAS, LDAP protocol support
Over 50 social login providers available
Multi-factor authentication with multiple methods
Customizable web admin interface
Multi-tenant organization management
Role-based and attribute-based access control
WebAuthn and biometric login support
Email and SMS verification codes
Audit logs and session management
Database synchronization tools
Clerk
Pre-built authentication components and user interfaces
20+ social login providers including Google and GitHub
Multi-factor authentication with SMS and authenticator apps
Password authentication with automatic breach detection
Organizations with roles and permissions for teams
Enterprise SSO with SAML and OAuth support
Session management and device tracking
Webhooks and API access for custom integrations
SOC 2 and HIPAA compliance
Free tier with 10,000 monthly active users
Casdoor
Casdoor offers three main pricing tiers to fit different organization sizes. All plans include no extra charges per monthly active user, which is different from many other identity platforms.
The Basic plan costs $9 per month and works well for personal projects and small teams. You get support for up to 100,000 users, 20,000 monthly active users, OAuth and OIDC protocols, and basic technical support through tickets within 24 hours.
The Premium plan at $25 per month is designed for growing startups and small companies. This adds SAML, CAS, and LDAP support, custom domains, higher limits with up to 2 million users and 1 million monthly active users, plus faster 8-hour support response times and anti-bot protection.
The Enterprise plan costs $59 monthly and targets medium to large companies. It includes all Premium features with significantly higher limits, multi-region deployment, Azure Active Directory and Google Workspace integration, and advanced security features.
Clerk
Clerk offers flexible pricing to support projects of all sizes. The free plan includes 10,000 monthly active users with all core features, pre-built components, and custom domain support. Users who sign up but never return are completely free.
The Pro plan charges just $0.02 per monthly active user after your first 10,000 free users. Pro includes removing Clerk branding, allowlist and blocklist features, and customizable session duration.
For advanced needs, add-ons cost $100 per month each. The Enhanced Authentication add-on provides multi-factor auth, device tracking, and enterprise SSO. The Enhanced Administration add-on includes user impersonation and audit logs.
Organizations start at $1 per monthly active organization after your first 100 free, with unlimited members per organization in Pro.
Enterprise plans offer custom pricing with 99.99% uptime guarantees, support SLAs, HIPAA compliance, dedicated Slack support, and onboarding assistance. Startup discounts are available through partners like Y Combinator and Stripe Atlas.
