A practical, beginner-friendly JavaScript project demonstrating how to use the browser's Local Storage API to build a complete Multi-User Authentication System.
The project includes user registration, login, validation, session handling, and a modern responsive UI. It is designed to help beginners understand how client-side authentication works while learning core JavaScript concepts.
- Vercel: https://auth-549.vercel.app/
- Vercel: https://multiuser-auth-549.vercel.app/
- Multi-User Registration (Sign Up)
- Multi-User Login (Sign In)
- Duplicate Email Validation
- Form Validation
- Authentication Logic
- Local Storage CRUD Operations
- Session Management
- Responsive Modern UI/UX
- SweetAlert2 Notifications
- Beginner-Friendly Code Structure
- HTML5
- CSS3
- JavaScript (ES6)
- Local Storage API
- SweetAlert2
- Users create an account using the Sign Up form.
- User credentials are stored in the browser's Local Storage.
- Duplicate email addresses are prevented during registration.
- Registered users can sign in using their credentials.
- Validation checks ensure proper authentication.
- User session information is maintained on the client side.
- Users can securely log out when finished.
This project helps beginners understand:
- Local Storage CRUD Operations
- Form Handling in JavaScript
- Authentication Logic
- Multi-User Data Management
- Session Management
- DOM Manipulation
- Event Handling
- Client-Side Data Persistence
- Responsive UI Development
- Clone the repository:
git clone https://github.com/Wasayullah/local-storage.git-
Open the project folder.
-
Launch
index.htmlin your preferred web browser.
No installation or dependencies are required.
This repository will continue to grow with more Local Storage-based mini projects and features, including:
- Dashboard Page
- Remember Me Feature
- Password Visibility Toggle
- Forgot Password
- User Profile Management
- Edit Profile
- Change Password
- Logout Functionality
- Theme Switcher
- Session Management Improvements
- Notes Application
- Todo Application
- Expense Tracker
- Contact Manager
- Bookmark Manager
- Admin Dashboard
- Data Export & Import
- IndexedDB Version
This project stores data in the browser's Local Storage and is intended for educational and learning purposes only.
Local Storage is not secure for storing sensitive information such as passwords in production applications. Real-world authentication systems should use secure backend servers, encrypted databases, password hashing, authentication tokens, and HTTPS.
Mohammad Wasayullah
If you found this project helpful or learned something new, consider giving it a ⭐ on GitHub!