Slowed + Reverb: Speed, Pitch & Effects does not collect, store, transmit, or share any data. All audio processing happens locally in your browser using the Web Audio API; no audio, media, or browsing data ever leaves your device. The extension makes no network requests, includes no analytics or third-party trackers, and requires no account. The activeTab and scripting permissions are used only to add the control panel to the current page when you click the toolbar icon.