1. Overview
This Privacy Policy explains how Online Tools collects, uses and protects information when you use our online calculators, converters and generators. We aim to keep data collection limited and practical.
2. Calculator Inputs
Most calculator inputs are processed directly in your browser. Values such as numbers, dates, measurements, health metrics or project details are not sent to our servers unless a specific feature clearly says otherwise.
3. Information We May Collect
- Technical data such as browser type, device type, language, approximate region and error logs.
- Usage data such as visited pages, referring pages and interaction patterns in aggregated or pseudonymous form.
- Local settings such as theme preference or saved UI state in your browser storage.
- Messages you send to us by email, including the contact details you choose to include.
4. How We Use Information
- To operate, secure and improve the website.
- To understand which tools are useful and where the experience needs work.
- To investigate bugs, abuse, spam, availability issues or security incidents.
- To respond to messages you send us.
5. Cookies and Analytics
We may use cookies, local storage and analytics services to measure traffic, remember preferences and improve performance. We use Yandex Metrika to understand page visits, referring pages, link clicks and interaction patterns; this may include Webvisor session replay, click maps and link tracking. You can block or delete cookies and analytics requests in your browser settings. Some preferences may reset if browser storage is cleared.
6. Sharing
We do not sell personal information. We may share limited data with service providers that help us run analytics, hosting, security, email or support workflows, and when required by applicable law.
7. Retention and Security
We keep technical, analytics and contact data only as long as reasonably needed for the purposes described above. We use reasonable technical and organizational safeguards, but no internet service can guarantee perfect security.
8. Your Choices
Depending on your location, you may have rights to access, correct, delete or restrict certain personal information. You can contact us at [email protected].
9. Changes
We may update this policy as the site changes. The current version is always posted on this page with the latest update date.