User Login & Signup
Authentication lets users create accounts and log in. Supabase handles the hard parts — password hashing, sessions, security — so you can focus on your app.
🎯 What You'll Build
- • Sign up form with email/password
- • Login form
- • Protected routes (pages only logged-in users can see)
- • Logout functionality
- • User profile display
Auth Methods
Email/Password
Traditional login. User creates account with email and password.
Magic Links
Passwordless login. User enters email, receives a login link.
OAuth (Google, GitHub)
"Sign in with Google" — easy for users, more setup required.
⚠️ Security Note
Never build your own auth from scratch. Always use established services like Supabase, Auth0, or Firebase. They handle security complexities that are easy to get wrong.