FreeKG

A fun, experimental heart rate detector

⚠️ For entertainment only - Not a medical device

Step 1

Grant Microphone Access

We need your microphone to detect vibrations from your pulse.

Step 2

Position Your Phone

Hold your phone's microphone firmly against your neck, near your jugular vein.

Phone positioning guide
Step 3

Recording...

Keep the phone steady against your neck.

Recording for 15 seconds...

Results

Your Heart Rate

-- BPM