📥 YouTube Downloader Extension

A lightweight Chrome extension that adds a download button to YouTube videos for educational purposes. This project includes a backend server powered by Flask and yt-dlp to fetch video formats and handle downloads.

---

🚀 Features

• 🎬 Fetch available video formats for YouTube videos.
• 📥 Download videos in your preferred format and resolution.
• 🔄 Dynamic button injection for YouTube's single-page application (SPA).
• 🖥️ Backend server for secure and efficient video processing.

---

🛠️ Installation

1. Clone the Repository

git clone https://github.com/KrDevanshu06/Youtube-Downloader-Extension.git
cd Youtube-Downloader-Extension

2. Install Backend Dependencies

Make sure you have Python installed, then run:

pip install -r requirements.txt

3. Load the Extension in Chrome

1. Open Chrome and navigate to chrome://extensions/.
2. Enable Developer Mode.
3. Click Load unpacked and select the project folder.

---

🖥️ Usage

1. Start the Flask backend server:

   python server.py

2. Open a YouTube video in Chrome.
3. Click the extension icon to open the popup.
4. Select your desired format and resolution, then click Download.

---

📂 Project Structure

📦 Youtube-Downloader-Extension
├── 📄 content.js         # Injects the download button into YouTube pages
├── 📄 popup.js           # Handles popup logic and API communication
├── 📄 popup.html         # Extension popup UI
├── 📄 styles.css         # Styling for the popup
├── 📄 server.py          # Flask backend for fetching formats and downloads
├── 📄 manifest.json      # Chrome extension manifest
├── 📄 requirements.txt   # Python dependencies
├── 📄 LICENSE            # GNU General Public License v3.0
└── 📄 README.md          # Project documentation

---

🔧 Technologies Used

• Frontend: JavaScript, HTML, CSS
• Backend: Python, Flask, yt-dlp
• Browser API: Chrome Extensions API

---

⚙️ API Endpoints

/get-links

• Method: GET
• Description: Fetches available video formats for a given YouTube URL.
• Query Parameters:
  • url (string): The YouTube video URL.

/download

• Method: GET
• Description: Downloads the video in the specified format.
• Query Parameters:
  • url (string): The YouTube video URL.
  • format_id (string): The format ID to download.

---

🛡️ License

This project is licensed under the GNU General Public License v3.0.

---

📸 Screenshots

Popup Interface

Download Button on YouTube

---

🤝 Contributing

Contributions are welcome! Please follow these steps:

1. Fork the repository.
2. Create a new branch: git checkout -b feature-name.
3. Commit your changes: git commit -m 'Add feature-name'.
4. Push to the branch: git push origin feature-name.
5. Open a pull request.

---

📧 Contact

For questions or feedback, feel free to reach out:

• Email: Write me here
• GitHub: KrDevanshu06

---

⚠️ Disclaimer

This extension is for educational purposes only. Downloading copyrighted content without permission may violate YouTube's terms of service and copyright laws.