Let heartbeats meet across the world.
Connect a heart rate sensor directly, or share this moment with the world.
Local mode keeps every sample inside this browser tab.
Heart rate sensor
Not connected
Heart rate sensorNot connected
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BPM
Connect a sensor or start the demo to draw your live curve.
Waiting for dataPast 60 seconds
A disconnect leaves a real gap in the curve; MultiHR never repeats the last value.
Not for medical or emergency use
Heart rate is not a medical diagnosis. You can stop sharing or disconnect at any time.
Use Chrome or Edge on Android, Windows, macOS, or ChromeOS over HTTPS.
Your browser will open a private device chooser. MultiHR cannot scan silently.