🎥 YouTube Video Summarizer

Summarize YouTube videos effortlessly using Google Gemini (Gemma), automatic transcript extraction, and punctuation restoration. This lightweight Streamlit app transforms video content into clear and structured summaries with just a video link.

🚀 Features

• 🔗 Accepts any YouTube video URL format
• 🧠 Choose between 3 summary types:
  • General – well-structured overview
  • Short – concise 5-line summary
  • Technical – structured insight for technical content
• ✍️ Restores punctuation to improve readability
• 💾 Download summary as a Markdown (.md) file
• 🔒 Keeps your API key secure using .env

📦 Installation

1. Clone the repository

git clone https://github.com/ryma-tharouma/youtube-summarizer-with-gemma.git
cd youtube-video-summarizer

2. Install dependencies

pip install -r requirements.txt

3. Add your Gemini API key

Create a .env file in the project root:

gemma3n_api_key=your_gemma_api_key_here

🔑 Get your key from Google AI Studio

▶️ Run the App

streamlit run app.py

🧠 How It Works

• Extracts Video ID – using a robust regex-based function
• Fetches Transcript – using YouTubeTranscriptApi
• Restores Punctuation – with a multilingual punctuation model
• Summarizes Content – with structured prompts using Gemini
• Outputs – Markdown summary ready to view or download

✅ Supported YouTube URLs

• https://www.youtube.com/watch?v=VIDEO_ID
• https://youtu.be/VIDEO_ID
• https://m.youtube.com/watch?v=VIDEO_ID

📂 File Structure

.
├── app.py
├── requirements.txt
├── .env.example
├── README.md
└── screenshots/
└── app_demo.png

🧰 Tech Stack

• Python 3.8+
• Streamlit
• Google Generative AI (Gemma)
• YouTubeTranscriptApi
• DeepMultilingualPunctuation
• python-dotenv