Auth0 Has a Free Tier — Add Login, SSO, and Multi-Factor Auth to Any App Without Building It Yourself

Every developer has tried to build authentication from scratch at least once. Password hashing, session management, OAuth flows, password reset emails, rate limiting, brute force protection... Then you realize Auth0 gives you all of that for free. Up to 25,000 monthly active users. No credit card. What You Get for Free 25,000 monthly active users Social login — Google, GitHub, Facebook, Apple, Twitter Passwordless — magic links and OTP via email/SMS Multi-factor authentication — TOTP, SMS, email Universal Login — hosted login page, customizable Role-based access control — permissions and roles out of the box Up to 2 organizations — B2B multi-tenancy support Unlimited logins — no per-login charges Quick Start (5 Minutes) 1. Create an Application Sign up at auth0.com , create a new Application (Regular Web App, SPA, or Native). 2. Add Login to a React App npm install @auth0/auth0-react import { Auth0Provider , useAuth0 } from " @auth0/auth0-react " ; function App () { return ( < Auth0Pro