diff --git a/README.md b/README.md
index afa6985aad14..40b6b353ed8e 100644
--- a/README.md
+++ b/README.md
@@ -6,10 +6,11 @@ A blazing fast test runner powered by Vite.
 
 ## Features
 
-- [Vite](https://vitejs.dev/)'s config, transformers, resolvers, and plugins. Powered by [vite-node](https://github.com/antfu/vite-node)
+- [Vite](https://vitejs.dev/)'s config, transformers, resolvers, and plugins.
 - [Jest Snapshot](https://jestjs.io/docs/snapshot-testing)
 - [Chai](https://www.chaijs.com/) for assertions
 - [Sinon](https://sinonjs.org/) for mocking
+- [JSDOM](https://github.com/jsdom/jsdom) for DOM mocking
 - Async suite / test, top level await
 - ESM friendly
 - Out-of-box TypeScript support
@@ -20,11 +21,12 @@ import { it, describe, expect, assert } from 'vitest'
 
 describe('suite name', () => {
   it('foo', () => {
-    assert.equal(Math.sqrt(4), 2)
+    expect(1 + 1).toEqual(2)
+    expect(true).to.be.true
   })
 
   it('bar', () => {
-    expect(1 + 1).eq(2)
+    assert.equal(Math.sqrt(4), 2)
   })
 
   it('snapshot', () => {
diff --git a/package.json b/package.json
index cc25e5485637..73bc42bdf42c 100644
--- a/package.json
+++ b/package.json
@@ -62,6 +62,7 @@
   "devDependencies": {
     "@antfu/eslint-config": "^0.11.1",
     "@antfu/ni": "^0.11.0",
+    "@types/jsdom": "^16.2.13",
     "@types/minimist": "^1.2.2",
     "@types/node": "^16.11.11",
     "@types/sinon": "^10.0.6",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 6dd7a123b291..ef7127c51154 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -8,6 +8,7 @@ importers:
       '@antfu/ni': ^0.11.0
       '@jest/test-result': ^27.4.2
       '@types/chai': ^4.2.22
+      '@types/jsdom': ^16.2.13
       '@types/minimist': ^1.2.2
       '@types/node': ^16.11.11
       '@types/sinon': ^10.0.6
@@ -47,6 +48,7 @@ importers:
     devDependencies:
       '@antfu/eslint-config': 0.11.1_eslint@8.3.0+typescript@4.5.2
       '@antfu/ni': 0.11.0
+      '@types/jsdom': 16.2.13
       '@types/minimist': 1.2.2
       '@types/node': 16.11.11
       '@types/sinon': 10.0.6
@@ -654,6 +656,14 @@ packages:
       '@types/istanbul-lib-report': 3.0.0
     dev: false
 
+  /@types/jsdom/16.2.13:
+    resolution: {integrity: sha512-8JQCjdeAidptSsOcRWk2iTm9wCcwn9l+kRG6k5bzUacrnm1ezV4forq0kWjUih/tumAeoG+OspOvQEbbRucBTw==}
+    dependencies:
+      '@types/node': 16.11.11
+      '@types/parse5': 6.0.3
+      '@types/tough-cookie': 4.0.1
+    dev: true
+
   /@types/json-schema/7.0.9:
     resolution: {integrity: sha512-qcUXuemtEu+E5wZSJHNxUXeCZhAfXKQ41D+duX+VYPde7xyEVZci+/oXKJL13tnRs9lR2pr4fod59GT6/X1/yQ==}
     dev: true
@@ -673,6 +683,10 @@ packages:
     resolution: {integrity: sha512-f5j5b/Gf71L+dbqxIpQ4Z2WlmI/mPJ0fOkGGmFgtb6sAu97EPczzbS3/tJKxmcYDj55OX6ssqwDAWOHIYDRDGA==}
     dev: true
 
+  /@types/parse5/6.0.3:
+    resolution: {integrity: sha512-SuT16Q1K51EAVPz1K29DJ/sXjhSQ0zjvsypYJ6tlwVsRV9jwW5Adq2ch8Dq8kDBCkYnELS7N7VNCSB5nC56t/g==}
+    dev: true
+
   /@types/prettier/2.2.1:
     resolution: {integrity: sha512-DxZZbyMAM9GWEzXL+BMZROWz9oo6A9EilwwOMET2UVu2uZTqMWS5S69KVtuVKaRjCUpcrOXRalet86/OpG4kqw==}
     dev: false
@@ -693,6 +707,10 @@ packages:
     resolution: {integrity: sha512-RJJrrySY7A8havqpGObOB4W92QXKJo63/jFLLgpvOtsGUqbQZ9Sbgl35KMm1DjC6j7AvmmU2bIno+3IyEaemaw==}
     dev: false
 
+  /@types/tough-cookie/4.0.1:
+    resolution: {integrity: sha512-Y0K95ThC3esLEYD6ZuqNek29lNX2EM1qxV8y2FTLUB0ff5wWrk7az+mLrnNFUnaXcgKye22+sFBRXOgpPILZNg==}
+    dev: true
+
   /@types/yargs-parser/20.2.0:
     resolution: {integrity: sha512-37RSHht+gzzgYeobbG+KWryeAW8J33Nhr69cjTqSYymXVZEN9NbRYWoYlRtDhHKPVT1FyNKwaTPC1NynKZpzRA==}
     dev: false
diff --git a/src/cli.ts b/src/cli.ts
index 84681ae6f5c0..aa9f16bad5b7 100644
--- a/src/cli.ts
+++ b/src/cli.ts
@@ -11,7 +11,7 @@ const argv = minimist(process.argv.slice(2), {
     w: 'watch',
   },
   string: ['root', 'config'],
-  boolean: ['update', 'dev', 'global', 'watch'],
+  boolean: ['update', 'dev', 'global', 'watch', 'jsdom'],
   unknown(name) {
     if (name[0] === '-') {
       console.error(c.red(`Unknown argument: ${name}`))
@@ -28,8 +28,7 @@ const viteConfig = server?.config || {}
 const testOptions = viteConfig.test || {}
 
 await run({
-  global: argv.global,
-  watch: argv.watch,
+  ...argv,
   ...testOptions,
   server,
   updateSnapshot: argv.update,
diff --git a/src/integrations/jsdom.ts b/src/integrations/jsdom.ts
index e69de29bb2d1..fc02b7e8c5fa 100644
--- a/src/integrations/jsdom.ts
+++ b/src/integrations/jsdom.ts
@@ -0,0 +1,26 @@
+import { JSDOM } from 'jsdom'
+
+export function setupJSDOM(global: any) {
+  const dom = new JSDOM('<!DOCTYPE html>',
+    {
+      pretendToBeVisual: true,
+      runScripts: 'dangerously',
+      // TODO: options
+      url: 'http://localhost:3000',
+    },
+  )
+
+  const keys = Object.getOwnPropertyNames(dom.window)
+    .filter(k => !k.startsWith('_'))
+    .filter(k => !(k in global))
+
+  for (const key of keys)
+    global[key] = dom.window[key]
+
+  return {
+    dom,
+    restore() {
+      keys.forEach(key => delete global[key])
+    },
+  }
+}
diff --git a/src/run.ts b/src/run.ts
index 6c62c0b2b44a..4c16a9d38b8c 100644
--- a/src/run.ts
+++ b/src/run.ts
@@ -140,6 +140,9 @@ export async function run(config: Config) {
   if (config.global)
     (await import('./global')).registerApiGlobally()
 
+  if (config.jsdom)
+    (await import('./integrations/jsdom')).setupJSDOM(globalThis)
+
   const files = await collectFiles(paths)
 
   const ctx: RunnerContext = {