User Registration and Login System Using HTML, CSS and JavaScript with Source Code
Welcome to the User Registration and Login System, a modern and secure authentication solution built with HTML, CSS, and JavaScript. This system provides a seamless way for users to create accounts, log in, and manage their credentials with an intuitive and responsive interface. Designed with both functionality and aesthetics in mind, it includes features like password strength validation, social login options, and a smooth animated transition between registration and login forms—all while following best practices for user experience and security.
Whether you're a developer looking to integrate a ready-to-use authentication system or a learner exploring front-end web development, this project offers a practical foundation. The clean code structure makes it easy to customize and extend, allowing you to connect it to a backend service or enhance it with additional security measures. Experience a professional-grade login system that balances usability with robust design principles, perfect for your next web application!
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Key Features:
✅ User Registration & Login – Secure account creation and authentication.
✅ Password Strength Meter – Visual feedback for password security.
✅ Show/Hide Password Toggle – Improves usability while maintaining security.
✅ Remember Me Functionality – Stores login details for returning users.
✅ Forgot Password Flow – Simulated email-based password reset.
✅ Social Login Options – UI placeholder for Google, Facebook, and LinkedIn integration.
✅ Form Validation – Real-time error checking for email and password fields.
✅ Responsive Design – Works on mobile, tablet, and desktop.
✅ Animated Transitions – Smooth UI interactions between login and signup.
✅ Notifications – Success and error alerts for user feedback.
Technologies Used:
🔹 HTML5 – Structure and semantic markup.
🔹 CSS3 – Styling, animations, and responsive design.
🔹 JavaScript (ES6) – Form handling, validation, and interactivity.
🔹 Font Awesome – Icons for social login and password toggle.
🔹 Google Fonts (Poppins) – Modern typography for better readability.
🔹 LocalStorage – Temporary storage for demo purposes (replace with a backend in production).
How to Use:
1. Using the System
Register a new account → Fill in details and check password strength.
Log in → Use the registered credentials (stored in
localStorage
).Forgot Password → Simulated email reset flow (UI only).
Toggle Password Visibility → Eye icon to show/hide passwords.
2. Customization & Extensions
Connect to a Backend – Replace
localStorage
with a database (Firebase, Node.js, PHP, etc.).Add Email Service – Implement real password reset functionality.
Enable Social Logins – Integrate OAuth (Google, Facebook, etc.).
Enhance Security – Add password hashing (
bcrypt
) and CSRF protection.
Sample Screenshots of the Project
Landing Page (Login)

Register Account

Sample Login with Notification

How to Run?
- Download the provided source code zip file.
- Extract the downloaded zip file.
- Open the html file and you are now ready to go!
Video Demonstration for Installation/Setup:
Conclusion:
In conclusion, this User Registration and Login System demonstrates how modern web technologies can create secure, user-friendly authentication flows with just HTML, CSS, and JavaScript. While currently using localStorage
for demonstration purposes, the system is designed to be easily extended with backend integration, making it a versatile foundation for any web application requiring robust user authentication. Its responsive design, interactive features, and clean code structure provide both an excellent learning resource and a production-ready starting point for developers.
That's it! I hope this "User Registration and Login System Using HTML, CSS and JavaScript" will assist you on your programming journey, providing value to your current and upcoming projects.
For additional tutorials and free source codes, explore our website.
Enjoy Coding :>>
Note: Due to the size or complexity of this submission, the author has submitted it as a .zip file to shorten your download time. After downloading it, you will need a program like Winzip to decompress it.
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