WhatsApp Online Notifications
Get alerted when your contacts come online
WhatsApp online notifications alert you the moment a contact comes online, so you do not have to keep checking the app. Last Seen Monitor sends you a real-time alert when someone becomes available, letting you message them at exactly the right time.
What you get with Last Seen Monitor
Instant online alerts
Get a push notification the second a tracked contact comes online on WhatsApp — no manual checking required.
Set your own alert rules
Choose exactly when to be notified: for every online session, only sessions longer than a set time, or only during your chosen hours.
Track multiple contacts
Add as many WhatsApp contacts as you need to your dashboard and receive a separate alert stream for each one.
Web-based, nothing to install
Last Seen Monitor runs in any modern browser. Your alerts and data sync automatically across every device you sign in from.
Frequently asked questions
Can WhatsApp send you a notification when someone is online?
WhatsApp itself does not have a built-in feature to notify you when a specific contact comes online. However, third-party tools like Last Seen Monitor can send you an instant notification the moment a contact appears online, so you do not need to check manually.
How do I get WhatsApp online notifications?
To get WhatsApp online notifications, create a Last Seen Monitor account, add the phone number of the contact you want to monitor, and the tool will send you an alert the moment they come online. The setup is quick and no app installation is required.
Are WhatsApp online notifications instant?
Yes, Last Seen Monitor sends online notifications in real-time. The moment your contact's status changes to online, the notification is triggered and delivered to your device.
Can I get online notifications for multiple contacts?
Yes, you can add multiple WhatsApp contacts to your dashboard and receive online notifications for each of them. You can also set custom alert rules, such as only being notified during certain hours.
Start getting WhatsApp alerts in minutes
Create your account and start getting notified when your WhatsApp contacts come online. 7-day free trial — no hidden fees.
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