Streamlit Has a Free API — Build Data Apps in Pure Python

Streamlit: Data Apps Without Frontend Skills Streamlit turns Python scripts into interactive web apps. No HTML, no CSS, no JavaScript. Write Python, get a beautiful dashboard. Used by data scientists, ML engineers, and analysts worldwide. Why Streamlit Pure Python — no frontend knowledge needed Instant reload — save file, app updates Widgets — sliders, buttons, file uploads, charts Data-friendly — native pandas, plotly, matplotlib support Free hosting — Streamlit Community Cloud The Free API import streamlit as st import pandas as pd import plotly.express as px st . title ( " Sales Dashboard " ) # File upload file = st . file_uploader ( " Upload CSV " , type = " csv " ) if file : df = pd . read_csv ( file ) # Filters col = st . selectbox ( " Group by " , df . columns ) metric = st . selectbox ( " Metric " , df . select_dtypes ( " number " ). columns ) # Chart fig = px . bar ( df . groupby ( col )[ metric ]. sum (). reset_index (), x = col , y = metric ) st . plotly_chart ( fig ) # Metr