Privacy Policy

Introduction

Welcome to our Privacy Policy. This document explains how we protect your privacy when you use our free online MP4 video and audio conversion service.

Important Commitment: Our service uses WebAssembly technology to process video and audio files locally in your browser. Your media files are never uploaded to our servers.

Information We Collect

We collect very limited information:

• Technical Information: Basic website usage statistics, such as pages visited and conversion counts (without file content)
• Device Information: Browser type, operating system type (used to optimize conversion performance)
• Contact Information: Email address only when you actively contact us

Information We Do NOT Collect:

• Your media file content or filenames
• Personal identification information (unless you voluntarily provide it)
• Account information (we don't require registration)

How We Use Your Information

We use the limited information we collect for the following purposes:

• To provide and improve our MP4 video and audio conversion service
• To optimize conversion performance for different devices and browsers
• To respond to your technical support requests
• To analyze service usage to improve user experience

Media File Processing

Local Processing Commitment:

• All video and audio conversions are completed locally in your browser
• Your media files never leave your device
• We cannot access, view, or store your media files
• After conversion, files are only stored on your device

Data Security

Because we use local processing technology:

• Your media files remain under your complete control
• No file transmission risks
• No server storage risks
• Your privacy is maximally protected

For the limited technical information we collect, we implement appropriate security measures to prevent unauthorized access.

Third-Party Services

We may use the following third-party services:

• Website analytics services (collecting only anonymous usage statistics)
• CDN services (for loading WebAssembly components)

These services do not access your media files or personal information.

Changes to This Privacy Policy

We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page.

Contact Us

If you have any questions about this Privacy Policy, please contact us.