Visual Piano

Privacy Policy

Last updated: February 2, 2026

1. Introduction

The operator of Visual Piano (the "Service") respects user privacy and is committed to protecting personal information. This Privacy Policy explains how we handle information in the Service. By using the Service, users are deemed to have agreed to this Policy.

2. Information We Collect

2.1 Uploaded Files

The Service processes MIDI files uploaded by users within the browser. These files are not sent to our servers and are processed only on the user's device. The operator does not have access to the content of these files.

2.2 Automatically Collected Information

The Service may automatically collect the following information:

  • IP address
  • Browser type and version
  • Operating system
  • Referring URL
  • Usage data such as page views and session duration
  • Device type (desktop, mobile, etc.)

3. Use of Cookies

Cookies are small text files stored on your browser by websites. The Service uses cookies for the following purposes:

3.1 Google Analytics Cookies

Google Analytics sets the following cookies to analyze service usage:

  • _ga - Used to distinguish users (retention: 2 years)
  • _gid - Used to distinguish users (retention: 24 hours)

3.2 Google AdSense Cookies

Google AdSense may set the following cookies for ad display and optimization:

  • DoubleClick (DART) Cookie - Used to display interest-based advertisements
  • Other advertising-related cookies

3.3 Managing Cookies

Users can disable cookies through their browser settings. However, some features may not function properly if cookies are disabled. The Service displays a cookie consent banner on first visit.

4. Google AdSense and Advertising

The Service uses Google AdSense as a third-party advertising service.

  • Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this and other websites.
  • Google uses the DoubleClick cookie to serve ads based on users' visits to this and other websites.
  • Users may opt out of personalized advertising by visiting Google's Ads Settings.
  • Users may also opt out of third-party vendor cookies by visiting the Network Advertising Initiative (NAI) opt-out page.

For more information about how Google uses cookies in advertising, please see Google's Advertising Policies.

5. Google Analytics

The Service uses Google Analytics, an access analysis tool provided by Google. Google Analytics uses cookies to collect data. This data is collected anonymously and does not identify individuals.

To opt out of Google Analytics data collection, install the Google Analytics Opt-out Browser Add-on.

For Google Analytics Terms of Service, please visit here. For Google's Privacy Policy, please visit here.

6. Third-party Services

The Service uses the following third-party services:

  • Google Analytics - Access analysis (Google LLC)
  • Google AdSense - Ad delivery (Google LLC)
  • Google Fonts - Web font delivery (Google LLC)

For the privacy policies of each service, please refer to the respective provider's websites.

7. Data Retention

The Service does not store user personal data on its servers. MIDI files are processed only within the browser and are never sent to the server. Cookie retention periods follow the policies of each respective service provider. Data stored in the browser's local storage (such as settings) can be deleted by the user at any time.

8. User Rights

Users have the following rights:

  • The right to disable cookies through browser settings
  • The right to opt out of personalized advertising and analytics using the opt-out links above
  • The right to delete data stored in the browser's local storage at any time
  • The right to make inquiries regarding this Policy

9. Children's Privacy

The Service is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that personal information from a child under 13 has been collected, we will take steps to delete such information promptly.

10. Information Sharing

The Service does not share user personal information with third parties except as required by law.

11. Changes to This Privacy Policy

The operator may update this Privacy Policy as necessary. When changes are made, the updated version will be posted on this page with an updated "Last updated" date. Users are encouraged to review this page periodically.

12. Contact

For questions about this Privacy Policy, please contact us through the Contact page.