📊 Sentylser – Sentiment Analyzer for Product Reviews

Sentylser is an interactive Streamlit app that performs sentiment analysis on product reviews using VADER (Valence Aware Dictionary and sEntiment Reasoner). Upload a CSV file, analyze individual product sentiments, visualize results, and download a summary of sentiment for all products.

---

🚀 Features

• 📁 Upload your CSV file containing product reviews
• 🎯 Select columns for product names and review texts
• 📊 Analyze sentiment (Positive, Neutral, Negative) for each review using VADER
• 🥧 Visualize sentiment distribution via a pie chart
• 🧠 Automatically detect the dominant sentiment for each product
• 💾 Download a sentiment summary CSV for all products

---

🧠 How It Works

1. Upload a CSV file with product names and review texts.
2. Select:
   • The column with product names
   • A product to analyze
   • The column with review text
3. Sentiment classification is done using VADER:
   • Positive: Compound score ≥ 0.5
   • Neutral: -0.5 < score < 0.5
   • Negative: Compound score ≤ -0.5
4. Pie chart shows sentiment breakdown for the selected product.
5. Download a CSV file summarizing the dominant sentiment for all products.

Try it here: https://sentylser.streamlit.app/

📦 Installation

1. Clone the repository:

git clone https://github.com/your-username/sentylser.git
cd sentylser