AuthMaster – Premium Authentication UI Kit

AuthMaster is a comprehensive, production-ready authentication UI kit featuring 5 distinct themes and 6 complete authentication flows. Built with vanilla JavaScript and Tailwind CSS, this kit provides everything you need to create beautiful, accessible, and secure authentication interfaces for your web applications.

Key Features

5 Premium Themes

Choose from five professionally designed themes, each with its own unique visual style:

Minimal Theme: Clean and simple design with subtle shadows and modern typography, perfect for minimalist applications
Glassmorphism Theme: Modern glassmorphism effects with animated backgrounds, ideal for creative and futuristic applications
Corporate Theme: Professional corporate design with sidebar layout, perfect for B2B applications and enterprise software with custom logo support
Creative Theme: Bold and vibrant design with gradient backgrounds, great for creative agencies and modern startups
Mobile-First Theme: Mobile-optimized design with app-like interface, perfect for mobile applications and progressive web apps

6 Complete Authentication Flows

All essential authentication states are covered:

Sign In: Standard login form with email, password, remember me functionality, and social login options
Sign Up: Registration form with first name, last name, email, password strength meter, and social login integration
Forgot Password: Password recovery form for resetting user passwords
OTP Verification: 4-digit code verification for email verification
Reset Password: New password creation form with confirmation field
Two-Factor Authentication (2FA): Complete 6-digit code verification flow with auto-focus, paste support, and keyboard navigation

Ready-to-use UI components for OAuth integration with Google, Facebook, and GitHub. The buttons are fully styled and theme-aware, ready for backend OAuth implementation.

Password Strength Meter

Real-time visual password strength indicator with 4-bar display showing weak, fair, good, and strong password levels. Includes descriptive text feedback to help users create stronger passwords.

Form Validation System

Comprehensive JavaScript validation system with real-time feedback, accessible error messages, and theme-aware styling. Validates email format, password requirements, text fields, and OTP inputs with customizable rules.

Loading States and UX Enhancements

Professional loading spinners and disabled states during form submission. Toast notification system replaces browser alerts with modern, non-intrusive notifications for success, error, info, and warning messages.

Remember Me Functionality

Persistent email storage with localStorage support. Automatically loads saved email addresses on return visits when remember me is checked.

Dark Mode Support

Full dark mode support with three options: System (follows OS preference), Light mode, and Dark mode. All themes support dark mode with proper contrast and styling. User preference is automatically saved and persists across sessions.

Fully Responsive Design

Mobile-first approach ensures optimal experience across all devices. Works seamlessly on smartphones, tablets, and desktops with touch-friendly interactions and adaptive layouts.

Accessibility (WCAG 2.1 AA Compliant)

Built with accessibility in mind:

ARIA labels and roles throughout
Keyboard navigation support
Screen reader support
Skip to content links
Proper form associations
Reduced motion support
Semantic HTML structure

Zero External Dependencies

All assets are included locally – no external CDN dependencies. Tailwind CSS, fonts (Inter, Outfit, Plus Jakarta Sans), and all icons are bundled with the kit. Works offline and ensures fast loading times.

Modular Architecture

Clean, organized code structure following best practices:

Separated components, themes, and core modules
Centralized configuration system
Easy to customize and extend
Production-ready code
Well-documented with inline comments

Technical Details

Built With

Vanilla JavaScript (ES6+) – No framework dependencies
Tailwind CSS – Utility-first CSS framework (included locally)
HTML5 – Semantic markup
CSS3 – Modern styling with animations

Browser Support

Compatible with all modern browsers:

Chrome (latest)
Firefox (latest)
Safari (latest)
Edge (latest)

File Structure

Well-organized folder structure following Envato marketplace standards:

Modular JavaScript components
Separated theme layouts
Core modules for state management and rendering
Comprehensive documentation
Local fonts and assets

Documentation

Comprehensive documentation is included:

README.md: Quick start guide and feature overview
INSTALLATION.md: Detailed installation and deployment instructions with security considerations
CUSTOMIZATION.md: Extensive customization guide covering all aspects of the kit
STRUCTURE.md: Complete file structure documentation
documentation.html: Interactive HTML documentation with full API reference
CHANGELOG.md: Version history and release notes

Security Considerations

This UI kit handles client-side validation and UI only. Comprehensive security documentation is provided, including:

Backend validation requirements
CSRF protection guidance
Rate limiting recommendations
Password hashing best practices
Session management guidelines
OAuth integration guide

Customization

Easy customization through centralized configuration:

Change default theme and flow
Customize colors and branding
Modify text content and messages
Add company logos (Corporate theme)
Adjust validation rules
Configure API endpoints

Use Cases

Perfect for:

Web developers building authentication systems
Agencies creating client projects
Startups needing quick auth UI implementation
Developers wanting customizable authentication flows
Projects requiring multiple theme options
Applications needing accessible authentication interfaces

What’s Included

5 premium theme layouts
6 complete authentication forms
Social login UI components
Password strength meter
Form validation system
Toast notification system
Loading state components
Dark mode implementation
Comprehensive documentation
57 high-quality screenshots
Source files with clean, commented code

Credits

This product uses the following open-source resources:

Tailwind CSS: Utility-first CSS framework by Tailwind Labs (MIT License)
Inter Font: Designed by Rasmus Andersson (SIL Open Font License)
Outfit Font: Designed by Rodrigo Fuenzalida (SIL Open Font License)
Plus Jakarta Sans Font: Designed by Tokotype (SIL Open Font License)
Bootstrap Icons: Icon library by Bootstrap team (MIT License)

Support

For support, updates, and questions, please contact the author through CodeCanyon. The product includes comprehensive documentation to help you get started quickly.

AuthMaster - Premium Authentication UI Kit