diff --git a/packages/js-sdk/package.json b/packages/js-sdk/package.json
index 6fc6cd57e..b8aab632e 100644
--- a/packages/js-sdk/package.json
+++ b/packages/js-sdk/package.json
@@ -35,7 +35,8 @@
     "update-deps": "ncu -u && pnpm i",
     "postPublish": "./scripts/post-publish.sh || true",
     "test:bun": "bun test tests/runtimes/bun --env-file=.env",
-    "test:deno": "deno test tests/runtimes/deno/ --allow-net --allow-read --allow-env --unstable-sloppy-imports --trace-leaks"
+    "test:deno": "deno test tests/runtimes/deno/ --allow-net --allow-read --allow-env --unstable-sloppy-imports --trace-leaks",
+    "test:integration": "E2B_INTEGRATION_TEST=1 vitest run tests/integration/**"
   },
   "devDependencies": {
     "@testing-library/react": "^16.0.1",
diff --git a/packages/js-sdk/tests/integration/stress.test.ts b/packages/js-sdk/tests/integration/stress.test.ts
new file mode 100644
index 000000000..69da1472d
--- /dev/null
+++ b/packages/js-sdk/tests/integration/stress.test.ts
@@ -0,0 +1,77 @@
+import { test } from 'vitest'
+
+import Sandbox from '../../src/index.js'
+import { isIntegrationTest, wait } from '../setup.js'
+
+const heavyArray = new ArrayBuffer(256 * 1024 * 1024) // 256 MiB = 256 * 1024 * 1024 bytes
+const view = new Uint8Array(heavyArray)
+for (let i = 0; i < view.length; i++) {
+  view[i] = Math.floor(Math.random() * 256)
+}
+
+const integrationTestTemplate = 'integration-test-v1'
+const sanboxCount = 10
+
+test.skipIf(!isIntegrationTest)(
+  'stress test heavy file writes and reads',
+  async () => {
+    const promises: Array<Promise<string | void>> = []
+    for (let i = 0; i < sanboxCount; i++) {
+      promises.push(
+        Sandbox.create(integrationTestTemplate, { timeoutMs: 60 })
+          .then((sbx) => {
+            console.log(sbx.sandboxId)
+            return sbx.files
+              .write('heavy-file', heavyArray)
+              .then(() => sbx.files.read('heavy-file'))
+          })
+          .catch(console.error)
+      )
+    }
+    await wait(10_000)
+    await Promise.all(promises)
+  }
+)
+
+test.skipIf(!isIntegrationTest)('stress requests to nextjs app', async ({}) => {
+  const hostPromises: Array<Promise<string | void>> = []
+
+  for (let i = 0; i < sanboxCount; i++) {
+    hostPromises.push(
+      Sandbox.create(integrationTestTemplate, { timeoutMs: 60_000 }).then(
+        (sbx) => {
+          console.log('created sandbox', sbx.sandboxId)
+          return new Promise((resolve, reject) => {
+            try {
+              resolve(sbx.getHost(3000))
+            } catch (e) {
+              console.error('error getting sbx host', e)
+              reject(e)
+            }
+          })
+        }
+      )
+    )
+  }
+
+  await wait(10_000)
+  const hosts = await Promise.all(hostPromises)
+
+  const fetchPromises: Array<Promise<string | void>> = []
+
+  for (let i = 0; i < 100; i++) {
+    for (const host of hosts) {
+      fetchPromises.push(
+        new Promise((resolve) => {
+          fetch('https://' + host)
+            .then((res) => {
+              console.log(`response for ${host}: ${res.status}`)
+            })
+            .then(resolve)
+        })
+      )
+    }
+  }
+
+  await Promise.all(fetchPromises)
+})
diff --git a/packages/js-sdk/tests/integration/template/README.md b/packages/js-sdk/tests/integration/template/README.md
new file mode 100644
index 000000000..7da9296a3
--- /dev/null
+++ b/packages/js-sdk/tests/integration/template/README.md
@@ -0,0 +1,5 @@
+# Integration test template
+
+# Build the template
+
+`$ e2b template build -c "cd /basic-nextjs-app/ && sudo npm run dev"`
diff --git a/packages/js-sdk/tests/integration/template/e2b.Dockerfile b/packages/js-sdk/tests/integration/template/e2b.Dockerfile
new file mode 100644
index 000000000..2284ca7d3
--- /dev/null
+++ b/packages/js-sdk/tests/integration/template/e2b.Dockerfile
@@ -0,0 +1,8 @@
+FROM e2bdev/code-interpreter:latest
+
+# Create a basic Next.js app
+RUN npx -y create-next-app@latest test --yes --ts --use-npm
+
+# Install dependencies
+RUN cd basic-nextjs-app && npm install
+
diff --git a/packages/js-sdk/tests/integration/template/e2b.toml b/packages/js-sdk/tests/integration/template/e2b.toml
new file mode 100644
index 000000000..4f6dff736
--- /dev/null
+++ b/packages/js-sdk/tests/integration/template/e2b.toml
@@ -0,0 +1,18 @@
+# This is a config for E2B sandbox template.
+# You can use template ID (2e2z80zhv34yumbrybvn) or template name (integration-test-v1) to create a sandbox:
+
+# Python SDK
+# from e2b import Sandbox, AsyncSandbox
+# sandbox = Sandbox("integration-test-v1") # Sync sandbox
+# sandbox = await AsyncSandbox.create("integration-test-v1") # Async sandbox
+
+# JS SDK
+# import { Sandbox } from 'e2b'
+# const sandbox = await Sandbox.create('integration-test-v1')
+
+team_id = "b9c07023-d095-4bdc-9634-e25d5530ba47"
+memory_mb = 1_024
+start_cmd = "npm run dev"
+dockerfile = "e2b.Dockerfile"
+template_name = "integration-test-v1"
+template_id = "2e2z80zhv34yumbrybvn"
diff --git a/packages/js-sdk/tests/setup.ts b/packages/js-sdk/tests/setup.ts
index 7cdbd5e0c..5e5955f7f 100644
--- a/packages/js-sdk/tests/setup.ts
+++ b/packages/js-sdk/tests/setup.ts
@@ -30,6 +30,7 @@ export const sandboxTest = base.extend<SandboxFixture>({
 })
 
 export const isDebug = process.env.E2B_DEBUG !== undefined
+export const isIntegrationTest = process.env.E2B_INTEGRATION_TEST !== undefined
 
 export async function wait(ms: number) {
   return new Promise((resolve) => setTimeout(resolve, ms))
diff --git a/packages/js-sdk/vitest.workspace.mts b/packages/js-sdk/vitest.workspace.mts
index 8ce2118f6..38006cd44 100644
--- a/packages/js-sdk/vitest.workspace.mts
+++ b/packages/js-sdk/vitest.workspace.mts
@@ -5,20 +5,11 @@ const env = config()
 export default defineWorkspace([
   {
     test: {
-      include: [
-        'tests/**/*.test.ts',
-      ],
-      exclude: [
-        'tests/runtimes/**',
-      ],
-      poolOptions: {
-        threads: {
-          minThreads: 1,
-          maxThreads: 4,
-        },
-      },
+      include: ['tests/**/*.test.ts'],
+      exclude: ['tests/runtimes/**', 'tests/integration/**'],
+      isolate: false, // for projects that don't rely on side effects, disabling isolation will improve the speed of the tests
       globals: false,
-      testTimeout: 30000,
+      testTimeout: 30_000,
       environment: 'node',
       bail: 1,
       server: {},
@@ -26,7 +17,7 @@ export default defineWorkspace([
         interopDefault: true,
       },
       env: {
-        ...process.env as Record<string, string>,
+        ...(process.env as Record<string, string>),
         ...env.parsed,
       },
     },
@@ -43,8 +34,8 @@ export default defineWorkspace([
         providerOptions: {},
       },
       env: {
-      ...process.env as Record<string, string>,
-      ...env.parsed,
+        ...(process.env as Record<string, string>),
+        ...env.parsed,
       },
     },
   },
@@ -55,4 +46,16 @@ export default defineWorkspace([
       environment: 'edge-runtime',
     },
   },
+  {
+    test: {
+      include: ['tests/integration/**/*.test.ts'],
+      globals: false,
+      testTimeout: 60_000,
+      environment: 'node',
+      env: {
+        ...(process.env as Record<string, string>),
+        ...env.parsed,
+      },
+    },
+  },
 ])