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Life & fun · January 13, 2021

A Heart Rate Monitor App Written in Vanilla JavaScript

💓 A web based heart rate monitor that measures pulse from the fingertip using the phone camera. - richrd/heart-rate-monitor

A Heart Rate Monitor App Written in Vanilla JavaScript launched on January 13, 2021 with 45 votes, #885 of 3,157 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 5 years on.

In plain words

This heart rate monitor app, built with vanilla JavaScript, is designed for users who want to track their heart rate data directly in their browser. The app allows individuals to monitor and record cardiovascular information without relying on external devices or frameworks. It's suitable for fitness enthusiasts, health-conscious users, or anyone interested in tracking their heart health metrics through a lightweight, straightforward web application.

written from the facts on this page · September 2026

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