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Storybook Vite builder bundles your components and stories with Vite, a fast ESM bundler.

  • For applications built with Vite: it allows reusing the existing configuration in Storybook.
  • For applications built with Webpack: it provides faster startup and refresh times, with the disadvantage that your component's execution environment differs from your application.


If you ran npx storybook@latest init to include Storybook in your Vite application, the builder is already installed and configured for you. If you want, you can also opt into it manually.

Run the following command to install the builder.

Update your Storybook configuration (in .storybook/main.js|ts) to include the builder.


Out of the box, Storybook's Vite builder includes a set of configuration defaults for the supported frameworks, which are merged alongside your existing configuration file. For an optimal experience when using the Vite builder, we recommend applying any configuration directly inside Vite's configuration file (i.e., vite.config.js).

When Storybook loads, it automatically merges the configuration into its own. However, not all projects have the same requirements, and you may need to provide a custom configuration created specifically for Storybook. In that case, you can adjust your configuration file (.storybook/main.js|ts) and add the viteFinal configuration function as follows:

The asynchronous function viteFinal receives a config object with the default builder configuration and returns the updated configuration.

You can also override the builder's configuration based on the environment. For instance, if you need to provide a custom configuration for development purposes and another for production, you can extend the default configuration as follows:


If you need, you can also configure Storybook's Vite builder using TypeScript. Rename your .storybook/main.js to .storybook/main.ts and adjust it as follows:


Working directory not being detected

By default, the Vite builder enables Vite's server.fs.strict option for increased security, defining the project's root to Storybook's configuration directory If you need to override it, you can use the viteFinal function and adjust it.

ArgTypes are not generated automatically

Currently, automatic argType inference is only available for React, Vue3 and Svelte (JSDocs only). With React, the Vite builder defaults to react-docgen-typescript if TypeScript is listed as a dependency. If you run into any issues, you can revert to react-docgen by updating your Storybook configuration file as follows:

Learn more about builders

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