Clock CAPTCHA

A web-based CAPTCHA system using a draggable analog clock to verify human users. Built with Django, HTML, CSS, and JavaScript, it adds an interactive and visually challenging verification step for login forms.

Features

• Interactive Clock CAPTCHA: Users drag the hour and minute hands to match a target time.
• Distorted Time Display: The target time is displayed as a noisy, distorted image to prevent automated reading.
• Custom Validation: Only correct time entry enables the login button.
• Seamless UX: CAPTCHA popup overlays the login page and closes automatically on success.
• Redirection: Upon successful verification, users are redirected to a “Signed In” page.
• Refresh Option: Users can generate a new target time without reloading the page.

Installation

1. Clone the repository

   git clone https://github.com/mhmistry/clock_captcha.git  
   cd clock_captcha
   

2. Create a virtual environment (optional but recommended)

   python -m venv venv  
   venv\Scripts\activate # Windows  
   source venv/bin/activate # macOS/Linux
   

3. Install dependencies

   spip install django
   

4. Run the server

   python manage.py runserver
   

5. Open your browser and go to:
   http://127.0.0.1:8000/

Usage

1. Enter a username and password.
2. Check the "I'm not a robot" box to open the CAPTCHA.
3. Drag the clock hands to match the distorted target time.
4. Click Submit to verify.
5. Upon success, you are redirected to the signed-in page.

Tech Stack

• Backend: Django
• Frontend: HTML, CSS, JavaScript
• Database: SQLite (default Django database)

License

This project is open-source and free to use for educational purposes.