Privacy Policy
Last Updated: November 23, 2025
Our Privacy Guarantee
Your files never leave your device. All conversion happens locally in your browser. We cannot see, access, or store your files because they are never uploaded to our servers.
Introduction
At MP4toMP3.io, we take your privacy seriously. This Privacy Policy explains how we handle your data when you use our free online video to audio converter. Unlike traditional online converters, our tool is designed with privacy as the top priority.
Information We DON'T Collect
✗Your Files: We never receive, access, or store your video or audio files. All processing happens in your browser.
✗Personal Information: We don't collect names, email addresses, phone numbers, or any personally identifiable information.
✗Usage Tracking: We don't use analytics, tracking pixels, or third-party tracking scripts.
✗IP Addresses: We don't log or store IP addresses or location data.
✗Browsing History: We don't track your browsing behavior or create user profiles.
How Our Technology Works
Our converter uses modern browser technology to process files entirely on your device:
- 1.When you select a file, it's loaded into your browser's memory (not uploaded to any server)
- 2.JavaScript code running in your browser extracts the audio using the Web Audio API
- 3.The audio is encoded to MP3 format using the LAME encoder (running in your browser)
- 4.The converted file is saved directly to your device
Technical Note: At no point in this process do your files leave your device or get transmitted over the internet. The entire conversion happens locally using client-side JavaScript.
Cookies and Local Storage
We may use browser local storage to remember your preferences (such as preferred audio quality settings) to improve your experience. This data:
- Stays on your device and is never transmitted to our servers
- Contains only non-personal preference settings
- Can be cleared at any time through your browser settings
- Is not used for tracking or advertising purposes
We do not use tracking cookies, advertising cookies, or any third-party cookies.
Third-Party Services
Our website is hosted on a third-party hosting provider. While they may collect basic server logs (such as IP addresses for security purposes), we do not have access to this data and it is not used for tracking or analytics. We do not integrate any third-party analytics, advertising, or tracking services.
Data Security
Since your files never leave your device, they are as secure as your own computer or mobile device. We recommend:
- Using a secure, updated browser
- Ensuring your device has up-to-date security software
- Using HTTPS (our website is served over secure HTTPS)
Children's Privacy
Our service does not collect any personal information from anyone, including children under 13. Since we don't collect data, there are no special considerations for children's privacy beyond our general privacy practices.
Your Rights
Since we don't collect or store your personal data or files, there is no data to access, modify, or delete. You have complete control over your files at all times because they never leave your device.
If you have stored preferences in your browser's local storage, you can clear them at any time through your browser settings.
Changes to This Privacy Policy
We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated "Last Updated" date. We encourage you to review this policy periodically.
Contact Us
If you have any questions about this Privacy Policy or our privacy practices, please feel free to reach out. While we don't collect data, we're happy to address any privacy concerns you may have.