Skip to main content
Migrate to Polaris

Version 2025-07 is the last API version to support React-based UI components. Later versions use web components, native UI elements with built-in accessibility, better performance, and consistent styling with Shopify's design system. Check out the migration guide to upgrade your extension.

UI components

These components are built with remote-ui. For the equivalents used in newer API versions, see web components.

UI components are the building blocks that you use to display data and trigger API functions in checkout UI extensions. These components follow Shopify's design system and render optimized interfaces for workflows in checkout.

Your target determines which components you can use because different locations in checkout have different interface requirements and constraints.

Constraints

You can't override the CSS for UI components. The checkout UI will always render the merchant's own branding. Checkout UI extensions don't have access to the real checkout DOM and can't render arbitrary HTML. They can only render custom HTML elements provided by Shopify.

Actions enable users to perform tasks and navigate through the checkout interface with interactive elements like buttons and links.

Anchor to Feedback and status indicatorsFeedback and status indicators

Feedback and status indicators communicate system states, progress, and important information to users.

Forms capture and validate user input with specialized field types optimized for different data collection needs in checkout.

Anchor to Layout and structureLayout and structure

Layout and structure components organize content hierarchically and spatially, creating clear visual relationships in checkout interfaces.

Media and visuals display images, icons, and graphical elements that enhance comprehension and visual communication in checkout.

Overlays present content in floating or layered surfaces that appear above the main interface, useful for focused tasks, contextual information, and supplementary content.

Anchor to Typography and contentTypography and content

Typography and content components present textual information with appropriate hierarchy, emphasis, and styling for clear communication.


Was this page helpful?