Streamlit

A faster way to build and share data apps. Transform Python scripts into interactive web apps.

Streamlit is an open-source Python library that allows you to turn data scripts into shareable web apps in minutes, not weeks. It’s designed specifically for machine learning and data science teams to easily create interactive UIs for machine learning models, data visualizations, and other data science tools.

Product Overview

Streamlit enables data scientists and machine learning engineers to quickly build data applications without front-end development experience. With simple Python scripts, users can create web applications that include charts, tables, widgets, and other interactive elements. These applications can be accessed directly from browsers and easily deployed to the cloud.

Core Features

Simple API

Streamlit provides an intuitive Python API that allows you to create UI elements directly from Python code:

import streamlit as st

st.title("My First Streamlit App")
st.write("Hello, World!")

Live Interactivity

Applications update in real-time as you edit your code, without needing to refresh the page. This makes the development and debugging process very fast and efficient.

Rich Component Library

Streamlit provides a rich set of built-in components, including:

Text and Markdown display
Charts and visualizations (supporting Matplotlib, Plotly, Altair, etc.)
Data tables and interactive widgets
Media elements (images, audio, video)
Layout control components

Data Visualization Integration

Seamless integration with mainstream data visualization libraries:

Matplotlib
Plotly
Altair
Bokeh
PyDeck

Easy Deployment

Streamlit provides a Community Cloud platform for easily deploying, managing, and sharing your applications.

Developer Reviews

Streamlit significantly simplifies the process of creating web applications for data science teams. Compared to traditional web development frameworks, it substantially lowers the technical barrier, allowing data scientists to focus on data analysis and model building rather than front-end development.

Usage Guide

Installation

pip install streamlit

Create Your First App

Create a Python file (e.g., app.py):

import streamlit as st
import pandas as pd

st.title("My Data App")
st.write("This is a simple Streamlit app")

# Create a simple dataframe
df = pd.DataFrame({
  'first column': [1, 2, 3, 4],
  'second column': [10, 20, 30, 40]
})

st.write(df)

Run the App

streamlit run app.py

Summary

Streamlit is an essential tool in the data science and machine learning field, making the process of turning Python scripts into interactive web applications extremely simple. For data teams that need to quickly build data dashboards, reports, or demonstrations, Streamlit is an ideal choice.