keystroke_logger.py

import tkinter as tk
from tkinter import messagebox
from datetime import datetime

logging_active = False
log_file = "key_log.txt"


def start_logging():
    global logging_active
    logging_active = True
    status_label.config(text="Status: Logging Started", fg="green")
    messagebox.showinfo("Started", "Keystroke logging has started.\nType inside the text box.")


def stop_logging():
    global logging_active
    logging_active = False
    status_label.config(text="Status: Logging Stopped", fg="red")
    messagebox.showinfo("Stopped", f"Keystrokes saved to {log_file}")


def log_key(event):
    if not logging_active:
        return

    key = event.keysym
    timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")

    with open(log_file, "a") as f:
        f.write(f"{timestamp} : {key}\n")


# GUI window
root = tk.Tk()
root.title("Python Keystroke Logger (Demo)")
root.geometry("500x350")

title = tk.Label(root, text="Keystroke Logging Demonstration", font=("Arial", 16, "bold"))
title.pack(pady=10)

info = tk.Label(
    root,
    text="Click START and type inside the box below.\nKeystrokes will be saved to a text file.",
    font=("Arial", 10)
)
info.pack()

text_box = tk.Text(root, height=8, width=50)
text_box.pack(pady=10)
text_box.bind("<Key>", log_key)

start_btn = tk.Button(root, text="Start Logging", bg="green", fg="white",
                      font=("Arial", 12), command=start_logging)
start_btn.pack(pady=5)

stop_btn = tk.Button(root, text="Stop Logging", bg="red", fg="white",
                     font=("Arial", 12), command=stop_logging)
stop_btn.pack(pady=5)

status_label = tk.Label(root, text="Status: Not Started", fg="blue", font=("Arial", 10))
status_label.pack(pady=10)

root.mainloop()