Let’s be honest: Email verification sounds like one of those “boring but necessary” tasks when building an app. It’s not flashy. It doesn’t impress on demo day. But it
saves your product in the long run.

The good news? You don’t need to build it from scratch. Most modern tools make it super simple—sometimes just a checkbox. In this post, we’ll show you how to implement email verification the easy way using real tools, real code, and a little empathy for your users.

🧠 Why It Matters (Quick Recap)

If you’re here, you probably already get it—but in case you need a reminder:

• It keeps bots and trolls out.
• It ensures users actually own their email.
• It opens up a line of communication.
• It protects your app’s reputation and trustworthiness.

If you’re skipping it because it sounds complicated… don’t worry. Let’s break it down.

🔧 Option 1: Firebase Auth (The “Checkbox” Solution)

Firebase by Google is one of the fastest ways to add email authentication and verification.

How it works:

1. Set up Firebase Auth in your project.
2. Use the built-in createUserWithEmailAndPassword method.
3. Call sendEmailVerification() after signup.

Sample Code (JavaScript):

import { getAuth, createUserWithEmailAndPassword, sendEmailVerification } from "firebase/auth";
 
const auth = getAuth();
 
createUserWithEmailAndPassword(auth, email, password)
  .then((userCredential) => {
    const user = userCredential.user;
    sendEmailVerification(user)
      .then(() => {
        console.log("Verification email sent.");
      });
  })
  .catch((error) => {
    console.error(error.message);
  });

Pro Tip: You can also enforce email verification before letting users access certain features using user.emailVerified.

🔐 Option 2: Supabase (For SQL-Lovers and Next.js Fans)

Supabase is like Firebase, but open-source and SQL-based. It handles email verification automatically if you enable it.

Setup:

1. Go to
   Supabase dashboard > Authentication > Settings > Email
2. Turn on
   "Confirm email"
3. Done. Supabase handles sending the verification email.

Sample Config:

Supabase handles everything with

magic links, so your user signs up and receives a pre-built email with a confirmation link.

Bonus: You can customize the templates or use your own email provider later.

Visual Suggestion: A clean toggle switch UI labeled "Enable email verification" inside Supabase.

🛠️ Option 3: Auth0 (For Enterprise-Ready Apps)

Auth0 gives you industrial-strength identity features—and email verification is baked in.

How to enable:

1. Log in to your Auth0 dashboard.
2. Go to
   Authentication > Database.
3. Under
   Email Settings, turn on
   “Require email verification”.
4. Customize the email template if you’d like.

Auth0 Perk: Works great for multi-tenant or B2B apps with complex rules.

🧑‍💻 Option 4: Roll Your Own (If You Like Control)

If you prefer to do it manually (say, for a custom backend), here’s the basic idea:

1. When a user signs up, generate a unique token and save it with an expiration time.
2. Email the user a link like:
   https://yourapp.com/verify?token=XYZ123
3. When they click it, hit your backend and mark the user’s email as verified.

Stack Suggestions:

• Use
  JWT for tokens.
• Store tokens in Redis for quick expiration.
• Send emails using
  SendGrid,
  Resend, or
  Postmark.

Warning: Don’t forget to
expire the token and
handle token reuse safely.

🧡 Keep It User-Friendly

Even though you’re adding a layer of security, don’t forget the human side:

• Let users know
  why they need to verify.
• Show a
  clear success page after clicking the link.
• Offer
  resend options if they lose the email.
• Make sure your emails
  don’t land in spam (SPF/DKIM/DMARC configs help).

🚀 Final Thoughts

Adding email verification doesn’t have to slow you down—it can be a 15-minute setup that saves you
hours of support,
hundreds of spam accounts, and
endless headaches.

Whether you use Firebase, Supabase, Auth0, or your own custom backend, just do it. Your users (and your future self) will thank you.

You may also be interested in 

Dangers of Skipping Email Verification in User Signups

Written by
Creating Apps

Helping indie makers and dev teams build smarter apps—without overcomplicating things.