DownKyi (Bilibili Video Downloader)

A powerful and intuitive video downloading tool for Bilibili (B站), specifically designed for macOS (as well as Windows and Linux) users.

Application Overview

DownKyi (Cross-Platform Edition) is a redeveloped version of the well-received Windows counterpart, built using the AvaloniaUI framework. It effectively resolves the pain points for macOS users when downloading videos from Bilibili—no need for emulators or complex command-line operations. It offers a native, user-friendly graphical interface. The software includes all necessary runtime environments (.NET, ffmpeg, aria2), enabling immediate use right out of the box.

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Core Features

• Cross-Platform Support: Natively supports macOS, Windows, and Linux. Runs smoothly on both Apple Silicon (M1/M2/M3) and Intel-based Macs.

• High-Quality Video Downloads: Supports downloading almost all video formats and encodings available on Bilibili, including:

  • Ultra-HD Resolution: Up to 8K resolution support.
  • Advanced Visual Technologies: Full support for downloading and saving HDR (High Dynamic Range) and Dolby Vision content.
  • Multiple Quality Options: Offers various resolution choices from 360p to 8K to suit different needs.

• Powerful Batch Downloading:

  • Supports downloading entire video collections, all videos from a specific UP主 (uploader), or anime series lists.
  • Allows easy selection of multiple videos for batch queuing and efficient download task management.

• Built-in Multi-functional Toolbox:

  • Audio/Video Extraction: Easily extract audio (e.g., MP3, AAC) or video streams from downloaded MP4 files.
  • Watermark Removal: Provides functionality to remove fixed watermarks that may appear in Bilibili videos.
  • Format Conversion/Remuxing: Uses built-in ffmpeg for limited format processing, such as merging audio/video streams or basic format conversion.

• Smart Parsing and Management:

  • Simply paste a Bilibili video link (av/BV ID, collection link, UP主 space link, etc.), and the software will intelligently parse all downloadable content.
  • Clearly displays video title, parts (P), resolution, encoding format, and file size.
  • Download tasks are well-organized, with support for pause, resume, and delete operations.

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Advantages and Highlights

1. Native macOS Experience: Developed specifically to fill the gap on macOS, providing a user interface and window behavior consistent with macOS design conventions—not a web-based wrapper.

2. All-in-One Standalone Software: No need to separately install .NET runtime, ffmpeg, or aria2. All dependencies are included, allowing immediate use after extraction or installation—significantly lowering the barrier to entry.

3. Developer-Driven Development: Developed by a macOS user who deeply understands the needs of cross-platform users, ensuring practical functionality and ongoing maintenance.

4. Completely Free and Open Source: Licensed under the GPL-3.0, the software is completely free, ad-free, and without any bundling. The source code is transparent and secure, enabling community collaboration and improvement.

5. Respect for Copyright: The software clearly states it is a parsing tool only, does not store any resources, and emphasizes that downloaded content is for personal study and exchange only. It encourages users to respect original creators and support official content, reflecting the developer’s copyright consciousness.

Download and Installation

Download the latest version with the .dmg extension (for macOS) from the Releases page on GitHub. The default download path is the standard macOS application support directory: ~/Library/Application Support/DownKyi/Media.

Disclaimer: Please strictly adhere to the software’s disclaimer. Use this tool only for legitimate personal study and research purposes. Delete downloaded content within 24 hours and support the official platform by viewing videos directly on Bilibili.