Read a heartbeat trace without sending it anywhere.

Paste an ECG or PPG pulse trace and the beat detection, heart rate, time-domain HRV and signal-quality flags are computed here, in this tab, for free. The waveform itself is never uploaded — if you ask for a written read, only the numbers below travel.

This is a signal-processing tool for training, research and curiosity. It is not a medical device and gives no diagnosis. Anything that matters clinically belongs with a clinician.