Privacy Policy

Last updated: March 26, 2026

Web Harmonium ("we," "us," or "our") operates the website webharmonium.org. This Privacy Policy explains what information we collect, how we use it, and what choices you have when you visit and use our website.

1. Information We Collect

Web Harmonium is a browser-based musical instrument. The core application runs entirely in your browser and does not require you to create an account or provide any personal information to use it.

However, we do collect certain information automatically through third-party services:

• Usage analytics: We use Google Analytics (GA4) to collect anonymized usage data such as page views, session duration, approximate geographic location, browser type, device type, and referring URLs. This helps us understand how visitors use our site and improve the experience.
• Advertising data: Our advertising partners (including Adsterra) may collect information through cookies and similar technologies to serve relevant advertisements. This may include your IP address, browser information, and browsing behavior across websites.

2. Cookies and Tracking Technologies

Our website uses cookies and similar technologies for the following purposes:

• Analytics cookies: Set by Google Analytics to track anonymous usage patterns and site performance.
• Advertising cookies: Set by our ad partners to deliver advertisements and measure their effectiveness. These cookies may track your browsing activity across different websites.
• Functional storage: We use your browser's localStorage to remember your instrument preferences (such as octave, transpose settings) and to manage ad display frequency. This data never leaves your device.

3. How We Use Information

The information collected is used to:

• Analyze website traffic and usage patterns to improve our service
• Deliver and manage advertisements that help keep this tool free
• Maintain and optimize website performance
• Understand which features and content are most useful to visitors

4. Third-Party Services

We use the following third-party services that may collect data:

• Google Analytics: For website analytics. See Google's Privacy Policy.
• Adsterra: For advertising. See Adsterra's Privacy Policy.

These third parties have their own privacy policies governing how they handle the data they collect.

5. Data Sharing

We do not sell, trade, or otherwise transfer your personal information to outside parties, except as described above through our analytics and advertising partners. We may disclose information if required by law or to protect our rights.

6. Your Choices

You have the following options to control your data:

• Cookies: You can configure your browser to refuse cookies or alert you when cookies are being sent. Note that some features of the site may not function properly if cookies are disabled.
• Google Analytics opt-out: You can install the Google Analytics Opt-out Browser Add-on.
• Ad personalization: You can opt out of personalized advertising through Your Ad Choices or NAI Consumer Opt-Out.
• Local storage: You can clear your browser's local storage at any time through your browser settings.

7. Children's Privacy

Our website is not directed at children under the age of 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us and we will take steps to delete such information.

8. Data Security

We take reasonable measures to protect the information collected through our website. However, no method of electronic transmission or storage is 100% secure, and we cannot guarantee absolute security.

9. Changes to This Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated revision date. We encourage you to review this page periodically.

10. Contact Us

If you have any questions about this Privacy Policy, please reach out to us at [email protected] or through our Contact page.