Navigator has no user accounts and no login. We don't ask you to register and don't collect personal profiles. Interactive tools run entirely in your browser; anything you save stays on your own device and is never sent to us. If privacy-respecting analytics or a CDN (e.g., Cloudflare) serve the site, standard technical logs may be processed by those providers to deliver and secure it. We don't sell data. Questions: wvijay@icloud.com.