Privacy & microphone

Your audio never leaves your device. The tuner analyses the microphone signal inside your browser to measure pitch. It does not record, store or transmit any audio, and the microphone is switched off when you press Stop or close the page.

You can revoke microphone permission at any time in your browser's site settings.

Settings

Your chosen reference pitch (for example A4 = 442 Hz) is saved in your browser's local storage so it's remembered next time. It is not sent anywhere.

Analytics

We may use privacy-respecting page analytics (such as Google Analytics) to count visits and see which pages are useful. These never include microphone audio.