macOS
brew install guetzlilocal Homebrew formula metadata
sudo port install guetzliMacPorts ports tree · graphics/guetzli/Portfile · ソース: api.github.com
brew
guetzli 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
brew install guetzlilocal Homebrew formula metadata
sudo port install guetzliMacPorts ports tree · graphics/guetzli/Portfile · ソース: api.github.com
sudo apk add guetzliAlpine Linux edge package indexes · guetzli · ソース: dl-cdn.alpinelinux.org
sudo apt install guetzliDebian stable package indexes · guetzli · ソース: deb.debian.org
nix profile install nixpkgs#guetzlinixpkgs package indexes · pkgs/by-name/gu/guetzli/package.nix · ソース: api.github.com
sudo pacman -S guetzliArch Linux sync databases · guetzli · ソース: geo.mirror.pkgbuild.com
scoop install main/guetzliScoop official bucket manifest trees · bucket/guetzli.json · ソース: api.github.com
概要
Perceptual JPEG encoder
履歴
Guetzli is Google's perceptual JPEG encoder for producing smaller sequential JPEG files at high visual quality. It belongs to the same family of format-compatible compression experiments as Zopfli: spend more CPU time during encoding while keeping output compatible with existing decoders.
Google announced Guetzli as open source on 2017-03-16. The announcement described it as a JPEG encoder for digital images and web graphics that targeted file-size reductions while remaining compatible with existing browsers, image-processing applications, and the JPEG standard.
The repository README says Guetzli-generated images are typically 20-30 percent smaller than libjpeg images of equivalent quality, and that Guetzli emits sequential, non-progressive JPEGs. The implementation uses a psychovisual approach focused on quantization decisions, with Butteraugli-related perceptual modeling present in the repository.
Guetzli was quickly packaged because it offered an easy experiment for web image optimization: a single CLI that reads PNG or JPEG input and writes optimized JPEG output. The official README documents Homebrew and MacPorts installation paths, and the input metadata records packaging across Alpine, Homebrew, Debian, MacPorts, Nix, Arch, Scoop, and Ubuntu.
Its adoption was bounded by cost. The README warns that it uses about 300 MB of memory per megapixel and roughly one minute of CPU per megapixel, making it better suited to offline asset pipelines than interactive image conversion.
The CLI usage is direct: `guetzli [--quality Q] [--verbose] original.png output.jpg` or the same with JPEG input. The README recommends high-quality, preferably uncompressed input and notes that PNG alpha is flattened onto black because JPEG has no alpha channel.
Guetzli assumes sRGB input with gamma 2.2 and ignores color-profile metadata. That assumption is important in package notes because it affects whether the tool is appropriate for a given image workflow.
Guetzli is a package-nerd favorite because it embodies a clear tradeoff: excellent density for legacy JPEGs, paid for with CPU and memory. It is a compact command-line artifact from a major research organization, easy to package, easy to benchmark, and easy to compare against libjpeg, MozJPEG, Zopfli, WebP, JPEG XL, and later Jpegli work.
Google's later Jpegli announcement explicitly places newer JPEG work in relation to earlier Guetzli-style heuristics, making Guetzli part of the historical path from high-effort JPEG optimization toward faster modern JPEG-compatible encoders.
セキュリティ状態
narrow executable package without higher-risk signals.
リスク グリーン · 信頼度 低 · appliance
エージェントに無人実行させる前に、このツールが平文の認証情報を読むか、リモート状態を書き込むか、成果物を公開するか、プラグインを起動するかを確認してください。
実行可能ファイル
| コマンド | 種類 | 公開範囲 | メモ |
|---|---|---|---|
guetzli | cli | グローバル実行可能ファイル |
鮮度
これらの信号は、ページ生成時期、パッケージマネージャの活動、上流リリース比較を分けて示します。バージョン遅れは、証拠 URL と比較可能なバージョンがある場合だけ警告されます。
https://github.com/google/guetzli
インストールメタデータ
| パッケージキー | brew:guetzli |
|---|---|
| バージョン | 1.0.1 |
| 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/guetzli |
| ホームページ | https://github.com/google/guetzli |
| リポジトリ | https://github.com/google/guetzli |
| 上流ドキュメント | https://github.com/google/guetzli#readme |
| ライセンス | Apache-2.0 |
| ソースアーカイブ | https://github.com/google/guetzli/archive/refs/tags/v1.0.1.tar.gz |
| 依存関係 | libpng |
| ビルド依存関係 | pkgconf |
| Bottle | 利用可能 (対象 arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura, x86_64_linux) |
| Homebrew post-install | 未定義 |
| サービス | 宣言なし |
レジストリ情報
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | guetzli |
| Version Scheme | 0 |
| Revision | 0 |
| Head Version | HEAD |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
ソースデータベース一致
一致は外部パッケージマネージャインデックスから取得され、ローカルの Automic Vault パッケージリンクとは分けて表示されます。
guetzli 1.0.1-2
perceptual JPEG encoder
https://github.com/google/guetzli
sudo apt install guetzliguetzli
nix profile install nixpkgs#guetzliguetzli 1.0.1-1build3
perceptual JPEG encoder
https://github.com/google/guetzli
sudo apt install guetzliguetzli 0_git20191025-r3
Perceptual JPEG encoder that aims for excellent compression density at high visual quality
https://github.com/google/guetzli
sudo apk add guetzliguetzli-dev 0_git20191025-r3
Perceptual JPEG encoder that aims for excellent compression density at high visual quality (development files)
https://github.com/google/guetzli
sudo apk add guetzli-devguetzli 1.0.1-5
Perceptual JPEG encoder
https://github.com/google/guetzli
sudo pacman -S guetzliguetzli
sudo port install guetzlimain/guetzli
scoop install main/guetzliソース経路
このページは scripts/generate-pkg-sqlite.py が生成した非公開のパッケージ SQLite アーティファクトから av-web によって提供されます。
View the package source record on GitHub.