Neptune Downloader Privacy Policy

Last updated: August 27, 2026

Neptune Downloader is a browser extension designed to help users detect and download media resources that are already loaded or displayed in their browser, including images, videos, audio, and streaming media.

1. Data We Process

To provide its core functionality, Neptune Downloader may process media-related information from web pages that the user visits, including:

The extension only processes information necessary to identify and download media resources.

2. No Remote Data Collection

Neptune Downloader does not upload users' media content, browsing information, or downloaded files to servers operated by the developer.

The extension does not operate a cloud-based service for collecting or storing user data.

Media data captured by the extension is transferred only to the local program running on the user's own computer when required for downloading and processing.

3. Local Application

Neptune Downloader works together with a local Go-based application.

The browser extension may transfer media data to this local application through the user's computer's localhost interface. The local application is responsible for processing and saving media files to the user's local storage.

This communication is local to the user's computer and is not, by itself, a transfer of data to the developer's servers.

4. Browsing Activity

Neptune Downloader does not intentionally collect or store the user's browsing history.

The extension monitors network activity associated with pages that the user accesses in order to identify media resources for downloading.

It does not crawl websites or automatically search for videos, images, or other media that the user has not accessed.

5. User-Controlled Downloads

Neptune Downloader is a general-purpose media downloader. It does not target or optimize its functionality for any particular website.

The extension does not automatically download media from websites. Media resources are processed for the purpose of enabling the user to save content that has been loaded or displayed in the user's browser.

Users are responsible for ensuring that their use of downloaded content complies with applicable laws, copyright requirements, website terms of service, and other applicable restrictions.

6. Third-Party Software

The local application distributed for use with Neptune Downloader may include open-source software such as FFmpeg and NC_down-rl.

These components are used for media downloading, processing, and related functionality.

They are distributed under their respective open-source licenses. Users may replace these components with newer versions when appropriate, subject to their respective licenses.

7. Data Storage

Neptune Downloader does not maintain a remote database containing users' personal information or downloaded media.

Media files and other data generated during the download process are stored locally on the user's computer according to the user's actions and local application settings.

8. Changes to This Privacy Policy

This Privacy Policy may be updated when the functionality of Neptune Downloader changes or when required to comply with applicable policies or regulations.

The latest version will be made available at this location.

9. Contact

If you have questions about this Privacy Policy or Neptune Downloader, please contact the developer through the contact information provided on the extension's store listing.

Summary

Neptune Downloader processes website media content only to provide its media downloading functionality. It does not intentionally collect users' personal information or upload users' media content and browsing information to developer-operated remote servers.

Media processing and storage are primarily performed locally on the user's computer.