Modern WordPress plugin development increasingly uses React for the admin interface. WordPress ships with React built-in, along with a comprehensive component library under the @wordpress namespace. Building your plugin admin pages with React provides a better user experience, easier state management, and compatibility with the wider WordPress development ecosystem.
This guide covers how to build React-based admin interfaces for WordPress plugins, from setup to component usage to data management.
Setting Up the Build Process
React code needs a build step to transform JSX into browser-compatible JavaScript. Use @wordpress/scripts, which provides a pre-configured webpack setup optimized for WordPress development. Install it with npm and add build and start scripts to your package.json. The build process compiles your JavaScript, handles JSX transformation, and generates production-optimized files.
Create an src directory for your React components. Configure the entry points in your package.json to point to your main JS files. The build outputs to a build directory that you enqueue in your plugin.
Using @wordpress/components
The @wordpress/components package provides a library of React components that match the WordPress admin design system. Use these components to build interfaces that look and feel native to WordPress. Common components include Button, TextControl, SelectControl, ToggleControl, RangeControl, Panel, Modal, and Notice.
Import components from @wordpress/components in your React code. The components handle styling, accessibility, and responsive behavior automatically. This saves development time and ensures your admin interfaces are consistent with WordPress core.
Managing State with wp.data
The wp.data package provides a Redux-based state management system integrated with WordPress. Use registerStore to define your data store with actions, reducers, and selectors. Use useSelect and useDispatch in your React components to access data and trigger actions.
wp.data integrates with the WordPress REST API through resolvers. When a component requests data that isn’t loaded yet, the resolver triggers an API request automatically. This pattern eliminates boilerplate code for data fetching and state synchronization.
Registering Pages
Create your admin page with add_menu_page() or add_submenu_page() in PHP. Instead of outputting complex HTML, your page callback function simply outputs a container div with a unique ID. Your React application mounts to that div when the page loads. Enqueue your built JavaScript file with wp_enqueue_script on your admin page hook.
Use wp_localize_script to pass PHP data to your React application. This is how you provide initial state, nonces, REST API URLs, and plugin settings to your JavaScript code.
Testing React Components
Test your React components with @wordpress/jest-console or React Testing Library. Write unit tests for individual components and integration tests for connected data flows. The @wordpress/scripts package includes Jest configuration that works out of the box for WordPress projects.
Test accessibility with @wordpress/jest-axe or manual keyboard navigation testing. React components should be navigable with Tab keys, operable with Enter and Space, and include proper ARIA labels.
The Bottom Line
React provides the best foundation for building modern WordPress admin interfaces. The @wordpress ecosystem provides everything you need — build tools, UI components, and state management — all designed to work with WordPress. Start with a simple settings page built with @wordpress/scripts, then add complex interfaces, data stores, and integration tests as your plugin grows.