Công cụ Developer

Notification Tester

Test browser Web Notifications API with customizable title, body, icon, tag, delay and more — 100% client-side

Not yet requested

Click the button to request notification permission.

Quick Presets

Notification Builder

Same tag replaces previous notification

0 = instant, up to 60 seconds

Preview

Test Notification

This is a test notification from FreeTool24! 🔔

test

JavaScript Code

// Request permission first
if (Notification.permission === "default") {
  await Notification.requestPermission();
}

// Send notification
if (Notification.permission === "granted") {
  const notification = new Notification("Test Notification", {
  body: "This is a test notification from FreeTool24! 🔔",
  tag: "test"
  });

  notification.onclick = () => {
    window.focus();
    notification.close();
  };
}

About Web Notifications

  • • Uses the Web Notifications API
  • • Requires user permission before sending
  • • Works on desktop and mobile browsers
  • Tag replaces previous notification with same tag
  • Require Interaction keeps it until dismissed
  • Silent suppresses sound and vibration

100% Client-Side

All notifications are sent directly from your browser. No data leaves your device — zero server calls.

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Notification Tester — Free Online Tool | FreeTool24 | FreeTool24