Think Note AI 🧠✨

Live Site: https://think-note-ai.vercel.app

Here's a demo video

Think Note AI is a state-of-the-art, AI-powered note-taking application designed to transform how you organize, synthesize, and interact with your thoughts. Built with a premium aesthetic and powered by Google Gemini AI, it's more than just an editor—it's your second brain.

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🚀 Key Features

• 💬 AI Chat & Multimodal Analysis: Interactive AI chat interface with the ability to upload and analyze PDFs and Images for deeper insights.
• 🧠 AI Studio: Integrated AI commands to Summarize, Rewrite, Generate Titles, and Extract Key Insights from your notes using Google Gemini.
• 📁 Smart Organization: Nested folders and robust tag management system for managing thousands of notes effortlessly.
• ⚡ Real-time Workspace: A premium, distraction-free editor with real-time state management and debounced autosave.
• 🔐 Secure Authentication: OTP-based verification via email and JWT-secured sessions.
• 🛡️ Rate Limiting & Caching: Robust Redis-backed API throttling, caching for optimized performance, and maximum stability.
• 🔒 Advanced Security: Secured with Helmet to set HTTP headers, alongside robust validation.
• 📝 Comprehensive Logging: Centralized logging system powered by Winston and daily log rotation.
• 📱 Ultra Responsive: Fluid design that works perfectly on desktop, tablet, and mobile.
• 🔍 Global Search: Lightning-fast search across all your notes and folders.

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🛠️ Technology Stack

Frontend

• Framework: Next.js 16 (App Router)
• UI System: Shadcn UI + Radix UI
• State Management: Zustand
• Styling: Tailwind CSS 4.0
• Animations: Motion (Framer Motion)
• Icons: Lucide React
• Data Fetching: Axios

Backend

• Framework: NestJS
• Database: Serverless SQLite powered by Turso (via Prisma ORM)
• AI Integration: Google Generative AI (Gemini 1.5/2.0)
• Caching & Rate Limiting: Redis
• Authentication: JWT (JSON Web Tokens)
• Email/OTP: Brevo
• Security: Bcrypt Hashing & Helmet
• Logging: Winston

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📦 Installation & Setup

Prerequisites

• Node.js (v20+)
• pnpm (Recommended)
• Google Gemini API Key

1. Clone the Repository

git clone https://github.com/Mostafiz002/Think-Note-Ai.git
cd Think-Note-Ai

2. Backend Setup

cd Backend
pnpm install

Create a .env file in the Backend directory:

# No DATABASE_URL needed for default SQLite setup, 
# but you can specify one if using a custom path.
PORT=
JWT_SECRET=
FRONTEND_URL=
GEMINI_MODEL=
GEMINI_API_KEY=
BREVO_API_KEY=
EMAIL_FROM=your_email@gmail.com
TURSO_DATABASE_URL=
TURSO_AUTH_TOKEN=
REDIS_URL=

Initialize the database:

npx prisma migrate dev
pnpm run dev

3. Frontend Setup

cd ../Frontend
pnpm install

Create a .env.local file in the Frontend directory:

BACKEND_URL="http://localhost:5000"

Run the development server:

pnpm run dev

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📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

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👨‍💻 Author

Mostafizur Rahman

• GitHub: @Mostafiz002
• Portfolio: mostafiz.dev