Using Storybook with Angular and Vite

Storybook is a frontend workshop for building UI components and pages in isolation.

By default, Angular and Storybook uses Webpack to build and serve the Storybook application.

This guides you through the process of switching to building and serving your Storybook with Angular using Vite using the AnalogJS Storybook integration. This package can be applied to any Angular project using Storybook.

This is a community integration not maintained by the Storybook team. If you have issues, file an issue in our GitHub repo.

Compatibility Guide

The AnalogJS Storybook integration for using Angular and Vite supports multiple versions of Storybook. See the table below for which version to install based on the project dependencies.

Storybook Version	Analog Version
^10.0.0	^2.0.0
^9.0.0	^1.22.0
^8.6.0	^1.22.0

Setting up Storybook

If you don't have Storybook setup already, run the following command to initialize Storybook for your project:

npx storybook@latest init

Follow the provided prompts, and commit your changes.

Installing the Storybook package

Install the Storybook Integration for Angular and Vite. Depending on your preferred package manager, run one of the following commands:

npm

npm install @analogjs/storybook-angular @analogjs/vite-plugin-angular --save-dev

yarn

yarn add @analogjs/storybook-angular @analogjs/vite-plugin-angular --dev

pnpm

pnpm install @analogjs/storybook-angular @analogjs/vite-plugin-angular -w --save-dev

bun

bun install @analogjs/storybook-angular @analogjs/vite-plugin-angular --save-dev

Configuring Storybook

Update the .storybook/main.ts file to use the StorybookConfig type. Also update the framework to use the @analogjs/storybook-angular package.

import { StorybookConfig } from '@analogjs/storybook-angular';

const config: StorybookConfig = {
  // other config, addons, etc.
  framework: {
    name: '@analogjs/storybook-angular',
    options: {},
  },
};

export default config;

For current Analog projects, use framework.options.liveReload to control Analog's Angular live-reload behavior.

This is separate from Vite's server.hmr option, which configures the HMR websocket transport. You can use server.hmr together with framework.options.liveReload when Storybook needs custom host, port, or path settings.

Remove the existing webpackFinal config function if present.

Next, update the Storybook targets in the angular.json or project.json

    "storybook": {
      "builder": "@analogjs/storybook-angular:start-storybook",
    },
    "build-storybook": {
      "builder": "@analogjs/storybook-angular:build-storybook"
    }

Remove any webpack specific options and remove the browserTarget option.

Add the /storybook-static folder to the .gitignore file.

Setting up CSS

To register global styles, add them to the @analogjs/storybook-angular builder options in the angular.json or project.json.

    "storybook": {
      "builder": "@analogjs/storybook-angular:start-storybook",
      "options": {
        // ... other options
        "styles": [
          "src/styles.css"
        ],
        "stylePreprocessorOptions": {
          "loadPaths": ["libs/my-lib/styles"]
        }
      }
    },
    "build-storybook": {
      "builder": "@analogjs/storybook-angular:build-storybook",
      "options": {
        // ... other options
        "styles": [
          "src/styles.css"
        ],
        "stylePreprocessorOptions": {
          "loadPaths": ["libs/my-lib/styles"]
        }
      }
    }

The Storybook preset uses these options for different jobs:

• styles entries are imported into Storybook's generated preview module, so use them for global stylesheets that every story should load
• stylePreprocessorOptions.loadPaths are passed to Vite's SCSS preprocessor, so use them for Sass @use and @import resolution inside .scss files

For Nx workspaces with shared SCSS libraries, keep the paths workspace-relative in project.json:

{
  "storybook": {
    "executor": "@analogjs/storybook-angular:start-storybook",
    "options": {
      "configDir": "libs/shared/ui/.storybook",
      "styles": [
        "libs/shared/ui/styles/shared-ui.scss",
        "libs/shared/ui/.storybook/storybook.scss"
      ],
      "stylePreprocessorOptions": {
        "loadPaths": ["libs/shared/ui/styles"]
      }
    }
  }
}

Use the styles array for actual global stylesheet files. Use loadPaths only to help Sass resolve imports from those files; it does not load a stylesheet by itself.

For third-party package styles, prefer bare package imports such as katex/dist/katex.css or @angular/material/prebuilt-themes/deeppurple-amber.css over node_modules/... paths when the package exports them.

Tailwind v4 in Storybook

If your project uses Tailwind v4, keep Storybook aligned with the same opinionated Analog setup you use in the app:

• one root stylesheet such as src/styles.css
• @import 'tailwindcss'; in that stylesheet
• framework.options.tailwindCss.rootStylesheet pointing at that stylesheet
• framework.options.liveReload for Angular reload behavior

import { resolve } from 'node:path';
import type { StorybookConfig } from '@analogjs/storybook-angular';

const config: StorybookConfig = {
  framework: {
    name: '@analogjs/storybook-angular',
    options: {
      liveReload: true,
      tailwindCss: {
        rootStylesheet: resolve(__dirname, '../src/styles.css'),
      },
    },
  },
};

export default config;

This keeps Storybook on the same stylesheet pipeline as the app instead of relying on ad hoc per-story or per-component Tailwind wiring.

Enabling Zoneless Change Detection

To use zoneless change detection for the Storybook, add the experimentalZoneless flag to the @analogjs/storybook-angular builder options in the angular.json or project.json.

angular.json

    "storybook": {
      "builder": "@analogjs/storybook-angular:start-storybook",
      "options": {
        // ... other options
        "experimentalZoneless": true
      }
    },
    "build-storybook": {
      "builder": "@analogjs/storybook-angular:build-storybook",
      "options": {
        // ... other options
        "experimentalZoneless": true
      }
    }

project.json

    "storybook": {
      "executor": "@analogjs/storybook-angular:start-storybook",
      "options": {
        // ... other options
        "configDir": "path/to/.storybook",
        "experimentalZoneless": true,
        "compodoc": false
      }
    },
    "build-storybook": {
      "executor": "@analogjs/storybook-angular:build-storybook",
      "options": {
        // ... other options
        "configDir": "path/to/.storybook",
        "experimentalZoneless": true,
        "compodoc": false
      }
    }

Zoneless change detection is the default for new projects starting Angular v21.

Setting up Static Assets

Static assets are configured in the .storybook/main.ts file using the staticDirs array.

The example below shows how to add the public directory from src/public relative to the .storybook/main.ts file.

import { StorybookConfig } from '@analogjs/storybook-angular';

const config: StorybookConfig = {
  // other config, addons, etc.
  framework: {
    name: '@analogjs/storybook-angular',
    options: {},
  },
  staticDirs: ['../public'],
};

export default config;

See the Storybook docs on images and assets for more information.

Running Storybook

Run the command for starting the development server.

npm run storybook

Building Storybook

Run the command for building the storybook.

npm run build-storybook

Using TypeScript Config Path Aliases

If you are using paths in your tsconfig.json, support for those aliases can be added to the vite.config.ts.

With Angular CLI

First, install the vite-tsconfig-paths package.

npm

npm install vite-tsconfig-paths --save-dev

Yarn

yarn add vite-tsconfig-paths --dev

pnpm

pnpm install -w vite-tsconfig-paths --save-dev

Next, add the plugin to the plugins array in the .storybook/main.ts.

import viteTsConfigPaths from 'vite-tsconfig-paths';
import { UserConfig, mergeConfig } from 'vite';

import type { StorybookConfig } from '@analogjs/storybook-angular';

const config: StorybookConfig = {
  // ... other config, addons, etc.
  async viteFinal(config: UserConfig) {
    return mergeConfig(config, {
      plugins: [viteTsConfigPaths()],
    });
  },
};

export default config;

With Nx

In Nx workspaces, normal workspace library imports already resolve in Storybook. You usually do not need to add nxViteTsPaths() just to resolve workspace packages.

If your workspace still depends on custom compilerOptions.paths aliases beyond those normal workspace package imports, add the nxViteTsPaths plugin from @nx/vite in .storybook/main.ts:

import { nxViteTsPaths } from '@nx/vite/plugins/nx-tsconfig-paths.plugin';
import { UserConfig, mergeConfig } from 'vite';

import type { StorybookConfig } from '@analogjs/storybook-angular';

const config: StorybookConfig = {
  // ... other config, addons, etc.
  async viteFinal(config: UserConfig) {
    return mergeConfig(config, {
      plugins: [nxViteTsPaths()],
    });
  },
};

export default config;

nxViteTsPaths() is only for custom TypeScript path aliases. It does not replace Storybook's styles option or SCSS loadPaths, so shared Sass setups usually need:

• styles for global Storybook stylesheets
• stylePreprocessorOptions.loadPaths for Sass import roots
• nxViteTsPaths() only if you still rely on custom TS/Angular aliases instead of normal workspace package imports

If styles still do not load as expected, enable scoped preset logging before running Storybook or the Storybook build:

DEBUG=analog-storybook:styles npm run storybook

This logs the resolved workspace root, SCSS loadPaths, and how each styles entry was classified:

• project when it resolves relative to the Storybook project root
• workspace when it resolves from the workspace root
• bare when it is left as a package import such as katex/dist/katex.css

Using File Replacements

You can also use the replaceFiles() plugin from Nx to replace files during your build.

Import the plugin and set it up:

import { replaceFiles } from '@nx/vite/plugins/rollup-replace-files.plugin';
import { UserConfig, mergeConfig } from 'vite';

import type { StorybookConfig } from '@analogjs/storybook-angular';

const config: StorybookConfig = {
  // ... other config, addons, etc.
  async viteFinal(config: UserConfig) {
    return mergeConfig(config, {
      plugins: [
        replaceFiles([
          {
            replace: './src/one.ts',
            with: './src/two.ts',
          },
        ]),
      ],
    });
  },
};

export default config;

Adding the replacement files to files array in the tsconfig.app.json may also be necessary.

{
  "extends": "./tsconfig.json",
  // other config
  "files": ["src/main.ts", "src/main.server.ts", "src/two.ts"]
}

Setting up Vitest for Interaction Testing

Storybook also supports using Vitest for testing component interactions.

Installing Packages

Install the Vitest addon and dependencies:

npm install @analogjs/vitest-angular @storybook/addon-vitest vitest @vitest/browser-playwright --save-dev

Add Vitest Add-on

Add the addon to your .storybook/main.ts:

import { StorybookConfig } from '@analogjs/storybook-angular';

const config: StorybookConfig = {
  stories: ['../src/**/*.mdx', '../src/**/*.stories.@(js|jsx|mjs|ts|tsx)'],
  addons: [
    '@storybook/addon-essentials',
    '@storybook/addon-interactions',
    '@storybook/addon-vitest',
  ],
  framework: {
    name: '@analogjs/storybook-angular',
    options: {},
  },
};

export default config;

Setup Vitest Configuration

Create a .storybook/vitest.setup.ts file:

import '@angular/compiler';
import { setProjectAnnotations } from '@analogjs/storybook-angular/testing';
import { beforeAll } from 'vitest';
import * as projectAnnotations from './preview';

const project = setProjectAnnotations([projectAnnotations]);

beforeAll(project.beforeAll);

Update .storybook/tsconfig.json to include the setup file:

{
  "extends": "../tsconfig.app.json",
  "compilerOptions": {
    "types": ["node"],
    "allowSyntheticDefaultImports": true,
    "resolveJsonModule": true
  },
  "exclude": ["../src/test.ts", "../src/**/*.spec.ts"],
  "include": ["../src/**/*.stories.*", "./preview.ts", "./vitest.setup.ts"],
  "files": ["./typings.d.ts"]
}

Create a vitest.config.ts file in your project root, or add a storybook project to your existing vite.config.ts:

/// <reference types="vitest/config" />
import { defineConfig } from 'vite';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import { storybookTest } from '@storybook/addon-vitest/vitest-plugin';
import { playwright } from '@vitest/browser-playwright';

const dirname =
  typeof __dirname !== 'undefined'
    ? __dirname
    : path.dirname(fileURLToPath(import.meta.url));

export default defineConfig({
  test: {
    projects: [
      {
        extends: true,
        plugins: [
          storybookTest({
            configDir: path.join(dirname, '.storybook'),
          }),
        ],
        test: {
          name: 'storybook',
          browser: {
            enabled: true,
            headless: true,
            provider: playwright(),
            instances: [{ browser: 'chromium' }],
          },
          setupFiles: ['.storybook/vitest.setup.ts'],
        },
      },
    ],
  },
});

Installing Playwright

Install Playwright browser binaries:

npx playwright install chromium

Running Component Tests

Add the test-storybook target to your angular.json:

"test-storybook": {
  "builder": "@analogjs/vitest-angular:test",
  "options": {
    "configFile": "vitest.config.ts"
  }
}

Add a test script to your package.json:

"scripts": {
  "test-storybook": "ng run your-app:test-storybook"
}

Run your interaction tests with:

npm run test-storybook

You can also run tests directly in the Storybook UI. Start Storybook and use the "Run Tests" button in the sidebar, or navigate to a story to see interaction tests run automatically in the Interactions panel.