app.py

import streamlit as st

# Set the title of the Streamlit app
st.title("Webpage Viewer")

# Create a text input for the URL
url = st.text_input("Enter the URL of the webpage you want to view:", "https://www.wikipedia.org")

# Display the URL in an iframe if it's not empty
if url:
    st.components.v1.iframe(url, width=800, height=600)