Privacy Policy

VitalsCharts runs 100 percent client-side. Calculator inputs, chart renders and history entries stay in your browser localStorage under keys like vc-theme, vc-disclaimer-<tool> and vc-history-<tool>. Nothing is sent to our servers because there are no servers, APIs, accounts or analytics beacons in this build.

PDF reports are generated in your browser with jsPDF and never uploaded. Clearing browser storage removes all history. Contact links and share buttons only open standard share URLs. If analytics or ads are added later, this page will be updated before they ship.