🔐 QR CODE LOCKER Made with Python – Unlock Hidden Messages with a Keyword

 Demo :

Click Video 👇👇👇

Code :

import customtkinter as ctk

import qrcode

import cv2

from pyzbar.pyzbar import decode

from PIL import Image

def lock_text():

    text = entry.get()

    secret = keyword_entry.get()

    data = f"{secret}|{text}"

    img = qrcode.make(data)

    img.save("qr_output.png")

    status_label.configure(text="✅ QR Code Generated (qr_output.png)")

def unlock_text():

    img = cv2.imread("qr_output.png")

    decoded = decode(img)

    if decoded:

        data = decoded[0].data.decode()

        key, message = data.split("|")

        if key == keyword_entry.get():

            status_label.configure(text=f"🔓 Secret: {message}")

        else:

            status_label.configure(text="❌ Wrong keyword!")

    else:

        status_label.configure(text="⚠️ QR code not found.")

ctk.set_appearance_mode("dark")

app = ctk.CTk()

app.geometry("400x400")

app.title("QR Code Locker")

entry = ctk.CTkEntry(app, placeholder_text="Enter secret message")

entry.pack(pady=10)

keyword_entry = ctk.CTkEntry(app, placeholder_text="Enter keyword")

keyword_entry.pack(pady=10)

ctk.CTkButton(app, text="🔒 Lock in QR", command=lock_text).pack(pady=5)

ctk.CTkButton(app, text="🔓 Unlock from QR", command=unlock_text).pack(pady=5)

status_label = ctk.CTkLabel(app, text="")

status_label.pack(pady=20)

app.mainloop()