📱 OTP Login App (Firebase Authentication)

A simple and clean React Vite web application that implements phone number authentication using Firebase OTP verification.

🚀 Live Demo

👉 https://otp-login-app-8rlw.vercel.app/

🛠️ Tech Stack

• React (Vite)
• Firebase Authentication
• JavaScript (ES6)
• CSS

✨ Features

• Phone number login using OTP
• Firebase Authentication integration
• reCAPTCHA verification
• User session handling (token stored locally)
• Success screen with user phone number
• Logout functionality

🔐 Authentication Flow

1. User enters phone number
2. OTP is sent via Firebase
3. User enters OTP
4. Verification success → user logged in
5. Session stored and displayed

⚠️ Note

This project uses Firebase test phone numbers for OTP authentication (no real SMS charges).

📦 Installation

npm install
npm run dev
🌐 Deployment

Deployed using Vercel.

📸 Screenshot

![site ss](image.png)