pulsebycam your pulse, by camera light

Your pulse log.

Every reading you've saved, kept in this browser and nowhere else.

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reading your own trend kindly

A single number is weather; the log is climate. Any one reading can be nudged by coffee, a brisk walk to the kettle, or the small excitement of measuring yourself. What's genuinely interesting is the drift across weeks — resting pulse creeping down as you get fitter, or sitting oddly high for days when you're run-down or fighting something off. Measure at roughly the same quiet moment each day (just after waking is the classic) and the line starts meaning something.

resting ranges people usually cite

These are the ballpark figures printed in nursing references — descriptions of what's common while awake and at rest, not verdicts about any one heart:

whotypical resting range
newbornsabout 100–160 BPM
children, roughly 1–10about 70–120 BPM
ages 10 and up, adults includedabout 60–100 BPM
well-trained endurance athletesoften 40–60 BPM

Sitting outside a range isn't a diagnosis — plenty of healthy hearts idle at 55, and plenty run at 90 on an anxious Tuesday. But a resting pulse that has changed a lot and stayed changed, or one that comes with dizziness, chest discomfort or breathlessness, deserves a real appointment rather than more measuring.

the log lives in your browser's local storage. Clearing your browser data clears it too, so export a CSV now and then if the history matters to you. Nothing syncs, nothing uploads — that's the whole point.