1---
2name: vite
3description: 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.
4metadata:
5  author: Anthony Fu
6  version: "2026.1.31"
7  source: Generated from https://github.com/vitejs/vite, scripts at https://github.com/antfu/skills
8---
9 
10# Vite
11 
12> Based on Vite 8 beta (Rolldown-powered). Vite 8 uses Rolldown bundler and Oxc transformer.
13 
14Vite is a next-generation frontend build tool with fast dev server (native ESM + HMR) and optimized production builds.
15 
16## Preferences
17 
18- Use TypeScript: prefer `vite.config.ts`
19- Always use ESM, avoid CommonJS
20 
21## Core
22 
23| Topic | Description | Reference |
24|-------|-------------|-----------|
25| Configuration | `vite.config.ts`, `defineConfig`, conditional configs, `loadEnv` | [core-config](references/core-config.md) |
26| Features | `import.meta.glob`, asset queries (`?raw`, `?url`), `import.meta.env`, HMR API | [core-features](references/core-features.md) |
27| Plugin API | Vite-specific hooks, virtual modules, plugin ordering | [core-plugin-api](references/core-plugin-api.md) |
28 
29## Build & SSR
30 
31| Topic | Description | Reference |
32|-------|-------------|-----------|
33| Build & SSR | Library mode, SSR middleware mode, `ssrLoadModule`, JavaScript API | [build-and-ssr](references/build-and-ssr.md) |
34 
35## Advanced
36 
37| Topic | Description | Reference |
38|-------|-------------|-----------|
39| Environment API | Vite 6+ multi-environment support, custom runtimes | [environment-api](references/environment-api.md) |
40| Rolldown Migration | Vite 8 changes: Rolldown bundler, Oxc transformer, config migration | [rolldown-migration](references/rolldown-migration.md) |
41 
42## Quick Reference
43 
44### CLI Commands
45 
46```bash
47vite              # Start dev server
48vite build        # Production build
49vite preview      # Preview production build
50vite build --ssr  # SSR build
51```
52 
53### Common Config
54 
55```ts
56import { defineConfig } from 'vite'
57 
58export default defineConfig({
59  plugins: [],
60  resolve: { alias: { '@': '/src' } },
61  server: { port: 3000, proxy: { '/api': 'http://localhost:8080' } },
62  build: { target: 'esnext', outDir: 'dist' },
63})
64```
65 
66### Official Plugins
67 
68- `@vitejs/plugin-vue` - Vue 3 SFC support
69- `@vitejs/plugin-vue-jsx` - Vue 3 JSX
70- `@vitejs/plugin-react` - React with Oxc/Babel
71- `@vitejs/plugin-react-swc` - React with SWC
72- `@vitejs/plugin-legacy` - Legacy browser support
73