Privacy
Your privacy is straightforward with FastWindowTimer: your data stays on your device. There are no accounts, no servers storing your health data, and no tracking cookies.
What data we collect
We do not collect personal information. There is no sign-up and no account. Your fasting history — start times, protocol, streak — is stored only in your browser's local storage on your device and is never transmitted to any server.
Local storage
FastWindowTimer uses your browser's local storage to persist your timer state and fasting history between sessions. This data never leaves your device. You can clear it at any time by clearing your browser's site data for FastWindowTimer.com.
Analytics
We plan to use privacy-respecting, cookie-less analytics (such as Cloudflare Web Analytics or Plausible) to understand which features are used, with no personal identifiers and no cross-site tracking. No analytics provider currently has access to your fasting data.
Advertising and affiliates
FastWindowTimer has no advertising or affiliate links at this time. If ads or affiliate links are added in future, we will update this policy, disclose the arrangement clearly, and — where required by law — implement a compliant consent flow before any ad loads.
Contact
Questions about privacy? Reach us via the contact details on the About page. We will respond promptly.
Published 2026-06-21. Effective from 2026-06-21.