ChatGPT Starter Kit for Angular: PrimeNG, Dark Mode, and Modular Chat

Build a polished, scalable chat app without starting from scratch. This starter kit gives you a modern Angular interface that looks and feels like today’s best AI chat experiences. It includes a themed UI with light/dark modes, a complete conversation flow, persistence via Local Storage (easily swappable for your backend), and a well-structured codebase that’s simple to extend. Whether you’re selling a niche agent, prototyping a product, or integrating with an AI provider, this kit helps you ship faster with confidence.

Key Features

• Modern UI: PrimeNG Aura theme with light/dark toggle and responsive layout.
• Modular Architecture: Clear separation of components, services, models, and pages.
• Signal-Based State: Reactive, predictable state flows using Angular signals.
• Conversation Management: Create, select, delete, and persist conversations.
• Message Flow: Input, message list, and message rendering with role-based styling.
• Persistence Layer: Storage service abstraction with Local Storage implementation.
• Routing & Performance: Lazy-loaded routes and OnPush change detection.
• Theming Ready: Dark mode selector aligned with PrimeNG best practices.
• Extensible: Hooks for API integration, streaming responses, markdown, and more.
• Well-Documented: Clear comments and guidance throughout for easy extension.

Benefits

• Ship Faster: Start from a working chat app instead of boilerplate.
• Professional Look: Clean, themeable UI that users recognize and trust.
• Easy Customization: Swap storage, integrate APIs, or add features without refactoring.
• Future-Proof: Built on Angular 20 with modern patterns and best practices.
• Scalable Structure: Maintainable architecture that grows with your product.
• Developer-Friendly: Clear code comments, predictable state, and sensible defaults.