Side sheet.
A supporting surface attached to the side of a view.
See it in context
What it is
A side sheet reveals contextual information or a task beside the primary content. It may overlay the content or share space with it, depending on width and whether the task should block the main view.
When to use it
Use for contextual supporting content on wide layouts.
Know the difference
A side sheet describes a presentation surface; an inspector specifically exposes properties of the selected object.
Across platforms
iOS · iPadOS · macOS · visionOS
Use the native platform presentation and terminology; adapt density and interaction to touch, pointer, remote, or spatial input rather than copying a phone-sized view.
Web · Android · Windows · Linux
On the web, manage keyboard focus and dismissal explicitly. Android and desktop implementations should use the equivalent native surface when available.
Go to the source
Primary documentation for the pattern and its platform conventions.