app.py

import pandas as pd
import streamlit as st

uploaded_file = st.file_uploader("Choose a JSon file: ", type="json")

if uploaded_file is not None:
 df=pd.read_json(uploaded_file)

 Csv_filr=df.to_csv(index=False).encode()

 st.download_button(
 label="Download the csv file",
 data='csv_file',
 file_name='converted_file.csv',
 mime='csv',
 )