Streamlit documentation

Streamlit is an open-source Python library that makes it easy to create and share beautiful, custom web apps for machine learning and data science. In just a few minutes you can build and deploy powerful data apps. So let’s get started!

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Get started

If you're new to Streamlit and don't know where to start, this is a good place.

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API reference

Learn about our APIs, with actionable explanations of specific functions and features.

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App gallery

Try out awesome apps created by our users, and curated from our forums or Twitter.

How to use our docs

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Streamlit library includes our Get started guide, API reference, and more advanced features of the core library including caching, theming, and Streamlit Components.

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Streamlit Cloud empowers your data team to directly serve the needs of the rest of the company. Quickly go from data to app, from prototype to production. Share apps in one click and collaborate instantly with live code updates.

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Knowledge base is a self-serve library of tips, step-by-step tutorials, and articles that answer your questions about creating and deploying Streamlit apps.

Wissam Siblini uses Streamlit for pathology detection in chest radiographs

Learn how Wissam detected thoracic pathologies in medical images.

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The Stable solves its data scalability problem with Streamlit

How Mark von Oven of The Stable helped his Analytics team go from idea to app in just a few days.

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How to build a real-time live dashboard with Streamlit

5 easy steps to make your own data dashboard.

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What's new

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st.camera_input

You can now upload images to your apps straight from your camera with the new st.camera_input feature. It's great for computer vision apps.

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Sign in with email

You can now sign in to Streamlit Cloud by using an email! Read more about how to use this feature in our docs.

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App favoriting

Streamlit Cloud supports a 'favorite' feature that lets you quickly access your apps from the app dashboard. Favorited apps appear with a yellow star ⭐ beside them.

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Expand and collapse JSON elements with kwarg

st.json now supports a keyword-only argument, expanded, on whether the JSON should be expanded by default (defaults to True).

Join the community

Streamlit is more than just a way to make data apps, it's also a community of creators that share their apps and ideas and help each other make their work better. Please come join us on the community forum. We love to hear your questions, ideas, and help you work through your bugs — stop by today!

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