Choose Clerk if you need
- Integration with Supabase, Convex or Firebase. We haven't found them on Keycloak's website.
At a glance
- Clerk has a free plan. We haven't confirmed one for Keycloak.
- Clerk's lowest paid plan is Pro at $25, as of October 19, 2026.
- They list no integrations in common.
- Clerk lists SOC 2, GDPR, HIPAA and SSO. We haven't confirmed any of these for Keycloak.
- Clerk has a public API. We haven't confirmed one for Keycloak.
From each tool's own website, checked on the dates below, and from published reviews.
Which to choose
From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.
Choose Keycloak if you need
- Integration with LDAP or Active Directory. We haven't found them on Clerk's website.
Clerk
Nobody has reviewed Clerk yet. Its rating shows once it has 3 reviews.
Review Clerk
Keycloak
Nobody has reviewed Keycloak yet. Its rating shows once it has 3 reviews.
Review KeycloakThe facts
- What it does
- ClerkAuthentication and user management for React, Next.js, Remix and the modern web
- KeycloakAdd authentication to applications and secure services with minimum effort.
- Free plan
- ClerkYes
- KeycloakNot confirmed
- Pricing
- ClerkNot confirmed
- KeycloakNot confirmed
- Paid plans from
- Clerk
What they share
From the platforms and integrations each website lists.
Integrations
BothNone in common
Only Clerk
- Supabase
- Convex
- Firebase
- Neon
- Hasura
- Vercel
- Shopify
Only Keycloak
- LDAP
- Active Directory
People who switched
Reviewers who say they used one of these before the other.
No reviewer has said they moved between Clerk and Keycloak yet.
Used either of them?
Your review makes this comparison better for the next person. Review Clerk or review Keycloak.