# nicovideo-dl を Homebrew でインストール

nicovideo-dl のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。

## インストール

```sh
sudo av install brew:nicovideo-dl
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install nicovideo-dl
```

  証拠: local Homebrew formula metadata

## パッケージ情報

- **パッケージキー:** brew:nicovideo-dl
- **パッケージマネージャ:** Homebrew
- **パッケージマネージャページ:** <https://formulae.brew.sh/formula/nicovideo-dl>
- **バージョン:** 0.0.20190126
- **ソース概要:** Command-line program to download videos from www.nicovideo.jp
- **ホームページ:** <https://osdn.net/projects/nicovideo-dl/>
- **上流ドキュメント:** <https://osdn.net/projects/nicovideo-dl/>
- **ライセンス:** MIT
- **ソースアーカイブ:** <https://dotsrc.dl.osdn.net/osdn/nicovideo-dl/70568/nicovideo-dl-0.0.20190126.tar.gz>
- **生成日時:** 2026-08-04T22:13:35+00:00

## 実行可能ファイル

- nicovideo-dl (cli)
- nicovideo-dl (エイリアス)

## macOS 提供ライブラリ

- python

## インストール挙動

- post-install フック: 未定義
- Bottle: 利用可能 対象 all

## バージョンと鮮度

- ページ生成日: 2026-08-04
- マネージャ版: 0.0.20190126
- ローカルデータ: OK
- 上流リポジトリ: https://osdn.net/projects/nicovideo-dl/
- 情報: No package-manager update timestamp was available.
- 情報: Release/tag comparison is only available for GitHub repositories.
## プロジェクトの歴史と使われ方

nicovideo-dl is a command-line program for downloading videos from www.nicovideo.jp.

### プロジェクトの歴史

Homebrew packages version 0.0.20190126 from an OSDN release archive and identifies the OSDN project page as the homepage. The formula has been patched by Homebrew for newer Python compatibility, which is typical of small site-specific downloader scripts after upstream activity slows.

### 採用の歴史

The package has very small Homebrew usage: the July 2026 API reports zero installs over 30 and 90 days and five installs over 365 days. Homebrew marks the formula deprecated on 2025-10-23 because the repository was removed and schedules disablement for 2026-10-23.

### 使われ方

Users run `nicovideo-dl` against one or more Niconico video URLs. The official package metadata identifies it as a Python-backed command-line downloader for www.nicovideo.jp.

### パッケージ好きにとっての重要性

nicovideo-dl is significant mainly as a legacy package-manager artifact: a narrow video-site downloader whose upstream repository disappeared while the package manager continued to carry a patched historical release for users who still had scripts depending on it.

### タイムライン

- 2019-01-26: Homebrew stable version 0.0.20190126 is sourced from OSDN release infrastructure.
- 2025-10-23: Homebrew marks the formula deprecated because the repository was removed.
- 2026-07: Homebrew API reports five installs over 365 days.
- 2026-10-23: Homebrew formula metadata lists planned disablement.

### Related projects

- Niconico, OSDN, youtube-dl, yt-dlp

### ソース

- <https://formulae.brew.sh/api/formula/nicovideo-dl.json>
- <https://formulae.brew.sh/formula/nicovideo-dl>
- <https://osdn.net/projects/nicovideo-dl/>


## セキュリティノート

broad file, network, media, or database tool signal.

- **Geiger リスク:** blue / 中
- broad file, network, media, or database tool signal

## ソースデータベース詳細

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** nicovideo-dl
- **Version Scheme:** 0
- **Revision:** 3
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** yes
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** stable


## 関連リンク

- [Secret-risk packages](https://pkg.so/ja/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals.
- [Terminal utility packages](https://pkg.so/ja/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Networking and protocol packages](https://pkg.so/ja/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [Media and graphics packages](https://pkg.so/ja/media-graphics-tools/) - Matched media, image, audio, video, or graphics metadata.
- [svtplay-dl](https://pkg.so/ja/brew/svtplay-dl/) - Shares pkgdb curated category or tags: cli, media, video-downloader.
- [yewtube](https://pkg.so/ja/brew/yewtube/) - Shares pkgdb curated category or tags: cli, media, video-downloader.
- [yle-dl](https://pkg.so/ja/brew/yle-dl/) - Shares pkgdb curated category or tags: cli, media, video-downloader.
- [lux](https://pkg.so/ja/brew/lux/) - Shares pkgdb curated category or tags: cli, media, video-downloader.
- [movgrab](https://pkg.so/ja/brew/movgrab/) - Shares pkgdb curated category or tags: cli, media, video-downloader.
- [ykdl](https://pkg.so/ja/brew/ykdl/) - Shares pkgdb curated category or tags: cli, media, video-downloader.
- [ffmpeg](https://pkg.so/ja/brew/ffmpeg/) - Shares pkgdb curated category or tags: cli, media.
- [libpng](https://pkg.so/ja/brew/libpng/) - Shares pkgdb curated category or tags: cli, media.

## Combined YAML source

View the package source record on GitHub. [combined/nicovideo-dl.yml](https://github.com/mxcl/pkgdb/blob/main/combined/nicovideo-dl.yml)


## ソース

- pkg.so package database
- Geiger risk classifier
- package-page enrichment
- curated package history
- package version freshness
- pkgdb category and tag curation
- package relationship graph
- cross-ecosystem install command graph