🔐 Ditch Passwords Forever: How I Built a Secure, Passwordless Login System Using WebAuthn & Node.js

🚀 The Problem with Passwords

It happened again.

A few months ago, I got a panicked call from a friend:

“Bro, my email got hacked. They changed my password, and I can’t get in.”

Sound familiar? We’ve all seen (or experienced) password leaks, phishing attacks, or just plain forgetting our own passwords.

So, I started wondering — What if we could log in without passwords?

That’s when I discovered WebAuthn (Web Authentication API) — a game-changing way to log in with biometrics (Face ID, Touch ID), security keys (YubiKey), or even device authentication (Windows Hello, Passkeys).

So, I built a fully functional, passwordless authentication system using WebAuthn & Node.js — and I’m going to show you how.

By the end of this guide, you’ll be able to:

✅ Implement passwordless login using WebAuthn in a Node.js + Express app
✅ Use Face ID, fingerprint sensors, or security keys for authentication
✅ Store user credentials securely in MongoDB
✅ Ditch passwords forever and make your app more secure