This is a simple keylogger application that redirects to a flask server the keystrokes of the victim. This web extension does not work in some websites, but it works in chatgpt, Facebook, and so on. The application is in localhost, do not use this for malicious purposes!
Make a virtual environment in /flask_serverside_application/
cd flask_serverside_application
python3 -m venv .venv
Activate the virtual environment
source /.venv/bin/activate
Install dependencies
pip3 install -r requirements.txt
Run the flask app
python3 app.py