Dead Man Switch Timer

Set a countdown timer and enter your emergency contact details. If you don't cancel the timer before it expires, an alert simulation is triggered. Perfect for hiking, solo travel, or any activity where someone should know you're safe.

Timer Duration

Emergency Contact Name

Contact Phone Number

Safety Message (optional)

This is a browser-based simulation. No data is sent or stored.

Frequently Asked Questions

What is a dead man switch timer?

A dead man switch timer is a safety countdown that requires you to periodically check in. If you don't respond before the timer expires, it triggers an alert to your emergency contact. It's commonly used by solo hikers, travelers, and people who live alone.

Does this timer actually send messages?

This free web tool simulates the alert to show you how it works. For automatic, real alerts that actually notify your emergency contact via SMS or push notification, download the ImAlive app.

What duration should I set?

It depends on your activity. For a short walk, 30 minutes is typical. For a hike, 2-4 hours. For travel, you might set it for your expected arrival time. Always add a buffer so you don't trigger false alerts.