All tools / Authentication

Clerk vs Auth0: free tier limits side by side

The free tier limit rows of Clerk and Auth0, as each vendor's public page listed them. Data collected on 2026-10-05.

Each column keeps the order of that tool's own page. A row puts two items next to each other by position only: they are the same kind of limit only when the item names say so. This page ranks nothing and picks neither tool.

ClerkAuth0
Monthly retained users: 50,000 per appMonthly active users: 25,000
Monthly retained organizations: 100Organizations: 5
Members per organization: 20Custom domains: 1
Dashboard seats: 3Machine-to-machine authentication: 1,000
Social connections: 3Actions + Forms: 5
M2M token creations: 2,500 per monthAdmins/contributors: 3
Application log retention: 1 dayTenants: 1
Log retention: 1 day

Tool pages

Each tool page has the card and commercial use terms, the gotchas and the address of the vendor page that was read.

More in this category: Authentication.