name: vite description: Vite build tool configuration, plugin API, SSR, and Vite 8 Rolldown migration. Use when working with Vite projects, vite.config.ts, Vite plugins, or building libraries/SSR apps with Vite. metadata: author: Anthony Fu version: "2026.1.31" source: Generated from https://github.com/vitejs/vite, scripts at https://github.com/antfu/skills

Vite

Based on Vite 8 beta (Rolldown-powered). Vite 8 uses Rolldown bundler and Oxc transformer.

Vite is a next-generation frontend build tool with fast dev server (native ESM + HMR) and optimized production builds.

Preferences

• Use TypeScript: prefer vite.config.ts
• Always use ESM, avoid CommonJS

Core

| Topic | Description | Reference | |-------|-------------|-----------| | Configuration | vite.config.ts, defineConfig, conditional configs, loadEnv | core-config | | Features | import.meta.glob, asset queries (?raw, ?url), import.meta.env, HMR API | core-features | | Plugin API | Vite-specific hooks, virtual modules, plugin ordering | core-plugin-api |

Build & SSR

| Topic | Description | Reference | |-------|-------------|-----------| | Build & SSR | Library mode, SSR middleware mode, ssrLoadModule, JavaScript API | build-and-ssr |

Advanced

| Topic | Description | Reference | |-------|-------------|-----------| | Environment API | Vite 6+ multi-environment support, custom runtimes | environment-api | | Rolldown Migration | Vite 8 changes: Rolldown bundler, Oxc transformer, config migration | rolldown-migration |

Quick Reference

CLI Commands

vite              # Start dev server
vite build        # Production build
vite preview      # Preview production build
vite build --ssr  # SSR build

Common Config

import { defineConfig } from 'vite'

export default defineConfig({
  plugins: [],
  resolve: { alias: { '@': '/src' } },
  server: { port: 3000, proxy: { '/api': 'http://localhost:8080' } },
  build: { target: 'esnext', outDir: 'dist' },
})

Official Plugins

• @vitejs/plugin-vue - Vue 3 SFC support
• @vitejs/plugin-vue-jsx - Vue 3 JSX
• @vitejs/plugin-react - React with Oxc/Babel
• @vitejs/plugin-react-swc - React with SWC
• @vitejs/plugin-legacy - Legacy browser support