Auth0 free tier and limits
Okta's hosted identity platform: universal login, social and passwordless sign-in, organizations and enterprise connections.
What the free plan gives you
- Free plan: up to 25,000 monthly active users, no credit card to sign up
- Unlimited social connections, passwordless and passkeys
- 1 custom domain, 5 organizations, 1 enterprise connection
Best for
Apps that may later need B2B features like SSO or organizations.
Watch out
Custom domains require credit-card verification even on Free. Paid tiers are priced in MAU steps and you are billed at the next tier up.
Other auth options
Clerk
Drop-in authentication and user management with prebuilt sign-in, sign-up and profile UI components. Bills on monthly retained users instead of raw sign-ups.
Free Hobby: free, no credit card required
Supabase Auth
The auth service built into every Supabase project: email/password, magic links, OAuth providers and anonymous sign-ins, tied directly to Row Level Security.
Free 50,000 monthly active users on the Free plan
Better Auth
An open-source TypeScript authentication framework that runs inside your own app and database. Plugins add 2FA, passkeys, magic links, organizations, SSO and more.
Free Open-source library: no per-user fees when self-hosted