diff --git a/package.json b/package.json
index 369e287..387ab6a 100644
--- a/package.json
+++ b/package.json
@@ -78,6 +78,7 @@
     "test:typecheck": "vitest typecheck --config ./vitest.type.config.ts --run",
     "test:coverage": "npm test -- --reporter verbose --coverage",
     "test:e2e": "run-s test:e2e:*",
+    "test:e2e:browser": "cd playground/browser && node --test",
     "test:e2e:node": "cd playground/node && node --test",
     "test:e2e:deno": "cd playground/deno && deno task test",
     "test:e2e:bun": "cd playground/bun && npm run test",
diff --git a/playground/browser/browser.test.mjs b/playground/browser/browser.test.mjs
new file mode 100644
index 0000000..5e73495
--- /dev/null
+++ b/playground/browser/browser.test.mjs
@@ -0,0 +1,39 @@
+import assert from 'node:assert'
+import test from 'node:test'
+import { createServer } from 'node:http'
+import playwright from 'playwright'
+import handler from 'serve-handler'
+
+const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms))
+
+async function getText(page, selector, options) {
+  return page.locator(selector, options).innerText()
+}
+
+test('browser integration test', async () => {
+  const server = createServer((request, response) => {
+    return handler(request, response)
+  })
+  server.listen(3000, () => {
+    console.log('Running at http://localhost:3000')
+  })
+
+  const cleanup = () => {
+    server.close()
+  }
+  process.on('SIGINT', cleanup)
+  process.on('SIGTERM', cleanup)
+  process.on('SIGQUIT', cleanup)
+  process.on('uncaughtException', cleanup)
+  await sleep(2000)
+
+  const browser = await playwright['chromium'].launch({ headless: true })
+  const page = await browser.newPage({})
+  await page.goto('http://localhost:3000')
+  const data = await getText(page, '#app')
+
+  assert(data === `isLocale('en-US'): true`)
+
+  browser.close()
+  server.close()
+})
diff --git a/playground/browser/package.json b/playground/browser/package.json
index 761f133..84aa8ac 100644
--- a/playground/browser/package.json
+++ b/playground/browser/package.json
@@ -4,9 +4,14 @@
   "version": "0.0.0",
   "type": "module",
   "scripts": {
-    "dev": "npx --no-install serve -l 3000"
+    "dev": "npx --no-install serve -l 3000",
+    "test": "node --test"
   },
   "devDependencies": {
-    "serve": "^14.2.1"
+    "serve": "^14.2.1",
+    "serve-handler": "^6.1.5"
+  },
+  "dependencies": {
+    "@intlify/utils": "npm:@intlify/utils-edge@latest"
   }
 }
diff --git a/playground/node/package.json b/playground/node/package.json
index f6c03c3..ada1d92 100644
--- a/playground/node/package.json
+++ b/playground/node/package.json
@@ -7,7 +7,7 @@
     "test": "node --test"
   },
   "dependencies": {
-    "@intlify/utils": "npm:@intlify/utils-edge@latest"
+    "@intlify/utils": "file:/Users/kazuya.kawaguchi/Projects/oss/intlify/utils/intlify-utils-0.10.0.tgz"
   },
   "peerDependencies": {
     "typescript": "^5.2.2"
diff --git a/scripts/replaceDeps.ts b/scripts/replaceDeps.ts
index e538add..9442d1e 100644
--- a/scripts/replaceDeps.ts
+++ b/scripts/replaceDeps.ts
@@ -8,7 +8,7 @@ const __dirname = fileURLToPath(new URL('.', import.meta.url))
 
 type Platform = 'browser' | 'node' | 'deno' | 'bun'
 
-async function replaceNodePlatform(platform: 'node' | 'bun', playgroundPath: string) {
+async function replaceNodePlatform(platform: 'browser' | 'node' | 'bun', playgroundPath: string) {
   const utilsPath = resolve(__dirname, '..')
   const utilsPkg = await readPackageJSON(resolve(utilsPath, 'package.json'))
   const utilsTgzPath = resolve(utilsPath, `intlify-utils-${utilsPkg.version}.tgz`)
@@ -22,6 +22,20 @@ async function replaceNodePlatform(platform: 'node' | 'bun', playgroundPath: str
   return true
 }
 
+async function replaceBrowserPlatform(platform: 'browser', playgroundPath: string) {
+  if (!replaceNodePlatform(platform, playgroundPath)) {
+    return false
+  }
+  const codePath = resolve(playgroundPath, platform, 'index.js')
+  const code = await fs.readFile(codePath, 'utf-8')
+  const replacedCode = code.replace(
+    'https://esm.sh/@intlify/utils',
+    './node_modules/@intlify/utils/dist/index.mjs',
+  )
+  await fs.writeFile(codePath, replacedCode, 'utf-8')
+  return true
+}
+
 async function replaceDenoPlatform(playgroundPath: string) {
   const denoConfigPath = resolve(playgroundPath, 'deno', 'deno.jsonc')
   const denoConfig = JSON.parse(await fs.readFile(denoConfigPath, 'utf-8')) as {
@@ -44,8 +58,12 @@ async function main() {
       if (!await replaceDenoPlatform(playgroundPath)) {
         console.error(`cannot replace '@intlify/utils' dependency on ${platform}`)
       }
-    } else { // for browser
-      // TODO:
+    } else if (platform === 'browser') {
+      if (!await replaceBrowserPlatform(platform, playgroundPath)) {
+        console.error(`cannot replace '@intlify/utils' dependency on ${platform}`)
+      }
+    } else {
+      throw new Error(`no support '${platform}' platform`)
     }
   }
 }