JavaScript OTP Verification System | Email Authentication Project
Build a real OTP verification system using JavaScript — no backend required.
In this project, you’ll create email-based authentication using HTML, CSS & Vanilla JS.
A portfolio-ready frontend security project recruiters love.
🚀 Project Overview
This project is part of Week 31 of my 52 Weeks of 52 JavaScript Projects series.
You’ll build a multi-step OTP authentication system where users:
Enter an email
Receive an OTP via email
Verify OTP securely
Get validated access
This is a real-world authentication flow, not a demo toy.
🧩 What You’ll Learn
✔ OTP generation & validation logic
✔ Email verification using EmailJS
✔ Multi-step UI flow with JavaScript
✔ DOM manipulation & state handling
✔ Frontend authentication concepts
⏱️ Chapters (Outcome-Based)
00:00 – OTP Authentication Demo
00:24 – Project Overview & Flow
02:22 – Project Setup & Structure
05:24 – Styling OTP UI
12:15 – JavaScript DOM Logic
22:18 – Sending OTP via EmailJS
30:10 – OTP Generation Logic
36:22 – OTP Validation & Error Handling
41:14 – UI Animations & UX Polish
42:55 – Testing & Final Thoughts
📚 Recommended Playlists
🔥 52 JavaScript Projects (Beginner → Advanced) • JavaScript Projects For Beginners To Advance.
🎨 Animations with HTML, CSS & JS • Animating Access with HTML, CSS, & JS
🌐 JavaScript API Projects • JavaScript API Projects
💼 Responsive Portfolio Website • Responsive Personal Portfolio Website
📂 Check out the source code for this project on GitHub!
👉 [https://github.com/codehuntersharath/...]
If you find this project helpful in your JavaScript learning, make sure to ⭐ star the repository to show your support!
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