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Authentication

4 components · sorted by setup time

The setup killer. Get this right in the first 30 minutes.

Why it matters

Every hackathon project that needs user accounts lives or dies on auth. Wrong choice means hours of debugging OAuth redirects at 2am instead of building features. The good news: modern auth providers handle the hard parts for you — Google sign-in, session management, email magic links — in under 30 minutes if you pick the right tool.

⚠ common pitfall

Don't roll your own. Don't start with email+password unless it's core to your concept. Don't use two auth providers. Pick one and commit.

✦ how to choose

Supabase Auth if you're already using Supabase. Clerk if you want the fastest drop-in with the best UI out of the box. NextAuth if you're deep in the Next.js ecosystem and want full control.

4 Authentication tools — fastest setup first
10
min
Clerkbeginner
A complete login system you can drop into any app. It comes with beautiful sign-in screens already designed — you don't have to build any login UI yourself.
GitHub↗Docs↗
15
min
Supabase Authbeginner
A service that handles user logins and accounts for your app. It manages the 'sign in with Google' button, email/password logins, and remembers who's logged in.
GitHub↗Docs↗
20
min
NextAuth.jsbeginner
A login system built specifically for Next.js apps. Supports signing in with Google, GitHub, Twitter, or your own email/password.
GitHub↗Docs↗
30
min
Lucia Authintermediate
A lightweight login library that gives you full control over how authentication works in your app. No third-party services involved.
GitHub↗Docs↗
Other building blocks
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