No tracking cookies. Local tools only.
CardioWebdr uses device-local browser capabilities to remember your workspace and cache pages; it does not use advertising or cross-site analytics cookies.
Local storage
Theme, favorites, notes, history, recent tools, and heart-sound favorites use localStorage. You can remove each collection in the interface or clear site data in browser settings.
Session storage
A random per-tab session identifier and first-party campaign attribution are kept in sessionStorage so backend analytics can group navigation without a persistent tracking cookie. They disappear when that tab session ends and contain no calculator values, results, note text, or search terms.
Cache storage
The service worker can cache core and visited pages for offline access. The heart-sound library can also save its 50 self-hosted WAV files into a dedicated offline cache when you explicitly request it. Cache storage contains page/audio assets, not a server-synced patient record.
Audio playback
Heart sounds are served directly from CardioWebdr without third-party embeds, tracking pixels, or external playback requests.