Lyric Slides Pitch Shifter — Privacy Policy

What this extension does

Lyric Slides Pitch Shifter pairs with the Lyric Slides projection app at lukehegelund.github.io to apply real-time pitch shifting to YouTube audio. Worship leaders use it to play any YouTube song in any key without restarting playback.

Data we collect

None.

This extension does not collect, transmit, store on remote servers, or share any user data of any kind. Specifically:

• We do not collect personally identifiable information.
• We do not collect health or fitness data.
• We do not collect financial or payment information.
• We do not collect authentication credentials.
• We do not collect personal communications.
• We do not collect location.
• We do not collect web history or browsing activity.
• We do not collect user-generated content.
• We do not use cookies or analytics services.
• We do not contact any third-party servers.

Data we store locally

The extension uses chrome.storage.session (an in-memory store that is cleared every time you close your browser) to remember which Chrome tab is currently the YouTube audio source. This is required because Chrome's Manifest V3 service workers are unloaded when idle, and we need to keep track of the YouTube tab across that lifecycle. No persistent or sensitive data is stored.

Sites the extension communicates with

The extension only runs on two domains:

• lukehegelund.github.io — the Lyric Slides projection app it pairs with. The extension's content script listens for window.postMessage events from this app to receive playback and pitch-shift commands.
• youtube.com — where the audio plays. The extension's content script captures the YouTube <video> element's audio via the Web Audio API and applies pitch shifting locally. No YouTube data leaves your browser.

The extension does not communicate with any other server, including no servers we control.

Permissions explained

• tabs — used to find or open the YouTube tab when the projection app requests audio playback. We only read tab URLs to match youtube.com.
• scripting — used to inject the audio-routing content scripts on the two domains above (declared statically in the manifest).
• storage — used with chrome.storage.session only (see "Data we store locally" above).

Open source

The full source code of this extension is available at github.com/lukehegelund/life-os. Anyone can audit exactly what the extension does. There are no minified, obfuscated, or remotely-loaded scripts.

Contact

For privacy questions, open an issue at github.com/lukehegelund/life-os/issues or email lukehegelund@gmail.com.