Privacy Policy

Last updated: October 10, 2025

1. Overview

Our core principles are:

  • All audio processing takes place locally in your browser.
  • We do not upload, store, or access your audio files.
  • We only collect essential anonymous usage data.
  • We never sell or share your personal information.

2. Information Collection

2.1 Information We Do Not Collect

  • Your audio file content
  • File name or file path
  • Personal information (name, email, phone, etc.)
  • Account information (registration not required)
  • Payment information (service is completely free)

2.2 Information We Collect

We only collect the following anonymous technical information to improve service quality:

  • Access time and page views
  • Browser type and version
  • Operating system information
  • Screen resolution
  • Approximate geographic location (country/region level)
  • Types of tools used (e.g., MP3 conversion, audio cutting, etc.)

3. Use of Information

The anonymous information we collect is only used for the following purposes:

  • Analyze website performance and user experience
  • Understand user needs and improve product features
  • Detect and prevent technical issues
  • Generate anonymous usage statistical reports
  • Optimize website loading speed and stability

We will never use this information for marketing, advertising, or other commercial purposes.

4. Data Security

Your privacy is very important to us. All uploaded audio is only used for the current processing task and is automatically deleted after completion, never retained or leaked. You can use our services with peace of mind and enjoy a secure and convenient audio processing experience.

5. Cookies and Local Storage

5.1 Necessary Cookies

We use a small number of necessary cookies to ensure the website functions properly:

  • Session management cookies (temporary)
  • Security protection cookies
  • User preferences (e.g., language selection)

5.2 Analytics Cookies

We may use anonymous analytics cookies to understand website usage. You can disable these cookies via your browser settings without affecting site functionality.

For detailed information on cookie usage, please refer to our Cookie Policy.

6. Third-Party Services

6.1 CDN Service

We use Content Delivery Networks (CDN) to improve website loading speed. CDN providers may collect basic access logs but cannot access your audio files.

6.2 Analytics Services

We may use third-party analytics services (e.g., Google Analytics) to understand website usage. These services only access anonymized statistics.

6.3 Security Services

We use security services to protect the website from attacks. These services may log visitor IP addresses and request information.

7. Data Retention

  • Audio files: We do not store them; they are immediately cleared from memory after processing.
  • Access logs: Retained for 30 days and then automatically deleted.
  • Analytics data: Anonymized aggregate data is retained for 12 months.
  • Cookies: Depending on type, retained from session end up to 1 year.

8. Your Rights

Although we do not collect personal identifiable information, you still have the following rights:

  • Know the types of information we collect
  • Request deletion of data related to you
  • Disable cookies and analytics features
  • Stop using our services at any time
  • Raise questions or suggestions regarding the privacy policy

9. Children's Privacy

Our services are available to users of all ages. Since we do not collect personal information or require registration, children can safely use our services.

We recommend that parents supervise children's online activities to ensure they use internet services safely.

10. International Data Transfer

As we use global CDN and cloud services, your anonymized usage data may be transferred between servers in different countries/regions. We ensure all data transfers comply with applicable privacy regulations.

Importantly, your audio files always remain on your device and are never transferred internationally.

11. Security Measures

We implement the following security measures to protect your privacy:

  • HTTPS encrypted transmission
  • Regular security audits
  • Access control and permission management
  • Security monitoring and threat detection
  • Data minimization principle

12. Policy Updater

We may periodically update this privacy policy to reflect service changes or legal requirements. Major changes will be notified to you in the following ways:

  • Post a notice at a prominent location on the website
  • Update the "Last Updated" date on this page
  • If there are major changes, you may be notified via email (if you provided one)

13. Contact Us

If you have any questions or suggestions regarding this privacy policy, please contact us via the following methods:

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