PRIVACY
Your chart data
This page describes data handling in the English chart tools.
Processing and storage
The numbers and text you enter into these chart tools are processed in your browser. We do not send chart inputs, calculation results or generated files to our server or to analytics. Automatic saving uses your browser’s local storage on this device. Use the tool’s Clear button or remove this site’s data in your browser settings to delete saved chart inputs.
Share links
A share link includes your chart inputs after the URL’s “#” character. That part of the URL is not sent with the page request or included in our analytics page address. Anyone who receives the full link can read the chart data. Share only data you intend the recipient to see.
Website analytics
We use Google Analytics (GA4) to understand page visits and tool usage. Google Analytics may use cookies and collect information such as the page address, referring site and browser environment. Our tool events report fixed tool identifiers and actions, such as downloading a PNG; they do not include chart values, labels, titles or results.
You can disable our analytics in this browser or enable it again. This preference uses local storage and applies only to this browser. Google also provides an Analytics opt-out browser add-on. Read how Google uses information from sites that use its services.
Advertising
The English chart section does not load Google AdSense advertising. Other sections of Digital Sales may display ads under the Japanese site privacy policy.
Contact messages
Our Japanese contact form sends the name, email address and message you provide through HubSpot. We use this information to respond to your inquiry. See HubSpot’s privacy policy for its handling of that information.
Updates
We may update this page when the service or its data handling changes. Changes take effect when published here.