Streamlit.
The fastest way to
build and share data apps

Turn data scripts into sharable web apps in minutes. All in Python. All for free. No front-end experience required.

Rapidly build all the apps you need with Streamlit's open source library. You can find the full source code for the semantic search engine above here.

Get started instantly

$ pip install streamlit

Click to copy

$ streamlit hello

Click to copy

And then check out our documentation and forum!

Streamlit combines three simple ideas

Embrace
Python
scripting

Build an app in a few lines of code with our magically simple API. Then see it automatically update as you save the source file.

MyApp.py

import streamlit as st

import pandas as pd

st.write("""
# My first app
Hello *world!*
""")

df = pd.read_csv("my_data.csv")

st.line_chart(df)

MyApp • Streamlit

My first app

Hello world!

Weave in interaction

Adding a widget is the same as declaring a variable. No need to write a backend, define routes, handle HTTP requests, etc.

MyApp.py

import streamlit as st

st.write("""
# Apps with widgets!
""")

x = st.slider("Select a number", 0, 100)‍

st.write("You selected", x)

MyApp • Streamlit

Apps with widgets!

Select a number

You selected:

Deploy
instantly

Use Streamlit’s sharing platform to effortlessly share, manage, and collaborate on your apps.
‍Request an invite!

MyApp.py

$ git push origin master

Compressing objects: 95% (10/11), done.
Writing objects: 0% (0/12), 0.10 KiB | 12.64 MiB MiB/s, done.

To https://github.com/foo/bar
15b309f..899c706 master -> master

Done!

MyApp • Streamlit

Sentiment Analysis

Our models are updated every day. Use this UI to debug it.

Model

Setan_model_20190104_002PST

Text to analyze

I’ve been using their service for 5 months now and every single day I marvel at how amazing it is!

value

Result

Confidence

Positive

0.876

Sentiment Analysis

Our models are updated every day. Use this UI to debug them.

Model

Setan_model_201901...

Text to analyze

I’ve been using their service for 5 months now and every single day I marvel at how amazing it is!

value

Result

Confidence

Positive

0.876

A minimal framework for powerful apps

Real time object detection

An image browser for the Udacity self-driving-car dataset with real-time object detection.

See on GitHub

Geographic data browser

Interactive visualization of Uber pickups in New York City.

See on GitHub

Face-GAN explorer

App that uses Shaobo Guan’s TL-GAN project from Insight Data Science, TensorFlow, and NVIDIA's PG-GAN to generate faces that match selected attributes.

See on GitHub