The tuner listens through your microphone using the Web Audio API inside your browser. The audio is analyzed on your device, frame by frame, and discarded — nothing is recorded, nothing is stored, and nothing is transmitted. This site is static files; there is no server capable of receiving audio even if we wanted it.
A service worker keeps a copy of the site itself for offline use. Your instrument, tuning, and A4 setting live in the page URL (that's what makes links shareable) — in your address bar, nowhere else. No cookies, no localStorage profiles.
Aggregate, visit counting that identifies nobody. No cookies, no fingerprinting, no identifiers. We know a page was viewed; we can't know by whom.
Type comes from Fontshare's CDN (which sees the font request, IP included, as CDNs do); the static files themselves are served by Cloudflare Pages with routine access logs. Neither receives audio or tuning data — it never leaves your device.
Mic access is requested only when you press start, used only while tuning, and released when you stop. Revoke it any time from the padlock menu; the tuner detects that and stops cleanly.
Contact us — privacy mail gets answered first.