TextSure

A Document Similarity & Text Comparison Tool

TextSure is a web-based document similarity checker that compares two documents and determines how similar they are using Natural Language Processing (NLP) techniques. It supports sentence-level similarity detection and provides a clean, user-friendly interface.

The project is built using Flask (Python) for the backend and HTML/CSS/JavaScript for the frontend, and is deployed on Render.

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Features

• Upload and compare two documents
• Overall similarity percentage using TF-IDF & cosine similarity
• Sentence-level similarity detection
• Simple and responsive UI
• Deployed on cloud (Render)
• Secure file handling (temporary storage & cleanup)

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Tech Stack

Backend

• Python
• Flask
• Flask-CORS
• scikit-learn (TF-IDF, cosine similarity)
• pdfplumber
• python-docx
• BeautifulSoup

Frontend

• HTML5
• CSS3
• Vanilla JavaScript (Fetch API)

Deployment

• Render (Free Tier)
• Gunicorn

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How It Works

1. User uploads two documents
2. Text is extracted from each file
3. Text is normalized and cleaned
4. TF-IDF vectors are generated
5. Cosine similarity is calculated
6. If similarity is high, similar sentences are highlighted

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Supported File Types

File Type	Status
.txt	Supported
.docx	Supported
.pdf	Supported (small files)
Images (.png, .jpg)	Disabled on cloud

⚠️ Image OCR is disabled on the deployed version due to cloud infrastructure limitations.

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Live Demo

🔗 Live URL:
https://textsure.onrender.com

Note: On Render’s free tier, large PDF files may fail due to CPU and timeout limits. This does not affect the core logic of the application.

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🧪 Local Setup (Run on Your Machine)

Clone the Repository

git clone https://github.com/Vrinda2403/TextSure.git
cd TextSure

Create and activate virtual environment

python -m venv venv
venv\Scripts\activate

Install Dependencies

pip install -r requirements.txt

Run the App

python app.py