1// vite.config.ts
2import unpluginVisualizer from 'unplugin-visualizer/vite'
3
4export default defineConfig({
5  plugins: [
6    unpluginVisualizer({ /* options */ }),
7  ],
8})

Example: playground/

1// rollup.config.js
2import unpluginVisualizer from 'unplugin-visualizer/rollup'
3
4export default {
5  plugins: [
6    unpluginVisualizer({ /* options */ }),
7  ],
8}

1// webpack.config.js
2module.exports = {
3  /* ... */
4  plugins: [
5    require('unplugin-visualizer/webpack')({ /* options */ }),
6  ],
7}

1// nuxt.config.js
2export default {
3  buildModules: [
4    ['unplugin-isualizer/nuxt', { /* options */ }],
5  ],
6}

This module works for both Nuxt 2 and Nuxt Vite

1// vue.config.js
2module.exports = {
3  configureWebpack: {
4    plugins: [
5      require('unplugin-visualizer/webpack')({ /* options */ }),
6    ],
7  },
8}