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The app chrome ​

Streamlit provides a few widgets at the top right corner of the app. These are referred to as "App Chrome". The Chrome includes a status area, toolbar and app menu.

App Menu ​

You can access the App Menu by clicking the three-dot hamburger icon in the top-right corner of the app.

App Menu

The app menu is split into two sections:

  • The upper section contains options available to all viewers and
  • the lower section (Developer options) contains options for developers.

Viewer options ​

Rerun ​

You can manually trigger a rerun of your app by clicking "Rerun" from the app menu. This rerun will not reset your session. Your widget states and values stored in st.session_state will be preserved.

Settings ​

You can control the appearance of your app using "Settings" from the app menu.

App Menu Settings

  • The Run on save option lets you update your app automatically, every time the source code changes.
  • The Wide mode option lets your app occupy the entire screen width.
  • The App theme dropdown lets you change your app theme.
Custom Theme ​

If you want to customize the colors and fonts of your app, you can do so using the Edit active theme option.

Custom Theme Settings

Print ​

NOTE

You may need to disable wide mode in Settings or adjust the print scale to prevent elements from clipping off the page.

The Print option lets you print the Streamlit app page. This option uses your browser's built-in print-to-pdf function. You can also use the keyboard shortcut (⌘+P or Ctrl+P) to invoke the print operation.

Record a screencast ​

NOTE

Screen recording is supported only in the latest versions of Chrome, Edge, and Firefox.

Some browsers provide an additional option in App Menu for screen recording. To start screen recording, click the Record a screencast option in the App Menu. The whole process looks like this:

Record a screencast

About ​

The About option gives you the Streamlit version of your app.

Developer Options ​

By default, the developer options of the app are accessible only:

  • when viewing the app locally.
  • on Streamlit Community Cloud while logged into an account with administrative access.

Clear cache ​

Reset your app's cache by clicking Clear cache option from the app menu or by pressing C on your keyboard while not focused on an input element. This will remove all cached entries for @st.cache_data and @st.cache_resource.

Deploy ​

You can also deploy your app, using the Deploy button next to the app menu icon.