Automic VaultAutomic Vault

brew

Install guetzli with Homebrew, apk, apt, MacPorts, Nix, pacman, scoop

Perceptual JPEG encoder. Version 1.0.1 via Homebrew; verified from local package data.

Install commandSecurity notes

install

Additional install commands

macOS

Homebrewverified · 100%
brew install guetzli

local Homebrew formula metadata

MacPortsverified · 94%
sudo port install guetzli

MacPorts ports tree · graphics/guetzli/Portfile · source: api.github.com

Linux

Alpine Linux apkverified · 92%
sudo apk add guetzli

Alpine Linux edge package indexes · guetzli · source: dl-cdn.alpinelinux.org

Debian aptverified · 92%
sudo apt install guetzli

Debian stable package indexes · guetzli · source: deb.debian.org

Nixverified · 92%
nix profile install nixpkgs#guetzli

nixpkgs package indexes · pkgs/by-name/gu/guetzli/package.nix · source: api.github.com

Arch Linux pacmanverified · 92%
sudo pacman -S guetzli

Arch Linux sync databases · guetzli · source: geo.mirror.pkgbuild.com

Windows

Scoopverified · 92%
scoop install main/guetzli

Scoop official bucket manifest trees · bucket/guetzli.json · source: api.github.com

overview

Package summary

Perceptual JPEG encoder

Commands and aliases

  • guetzli

history

Project history and usage

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.

Project history

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.

Adoption history

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.

How it is used

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.

Why package nerds care

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.

Timeline

  • 2017-03-16: Google Open Source Blog announces Guetzli.
  • 2017-03-21: GitHub release metadata shows the release series around the public launch window.
  • 2017: README documents POSIX, Windows, macOS, Homebrew, MacPorts, and Bazel build paths.
  • 2024: Google's Jpegli announcement discusses faster heuristics developed after earlier Guetzli-style approaches.

Related projects

  • Guetzli is related to libjpeg, MozJPEG, Butteraugli, Zopfli, WebP, JPEG XL, Brunsli, and Jpegli. Its distinguishing trait is staying inside the legacy JPEG format while using a slower perceptual search to improve compression density.

security posture

Risk level: green

narrow executable package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

  • narrow executable package without higher-risk signals

Signals

  • metadata:no-higher-risk-signals

Install behavior

  • No Homebrew post-install hook is recorded in formula metadata.
  • Homebrew bottle metadata is available for 13 platform targets.
  • Installs with 1 runtime dependencies.
  • Build metadata lists 1 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

CommandKindExposureNote
guetzlicliglobal executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-08
manager version1.0.1
manager updated
local dataok
upstreamcurrent
latest detectedv1.0.1

https://github.com/google/guetzli

  • infoNo package-manager update timestamp was available.low confidence

install metadata

Package metadata

Package keybrew:guetzli
Version1.0.1
Package managerHomebrew
Package manager pagehttps://formulae.brew.sh/formula/guetzli
Homepagehttps://github.com/google/guetzli
Repositoryhttps://github.com/google/guetzli
Upstream docshttps://github.com/google/guetzli#readme
LicenseApache-2.0
Source archivehttps://github.com/google/guetzli/archive/refs/tags/v1.0.1.tar.gz
Dependencieslibpng
Build dependenciespkgconf
Bottleavailable (on 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-installnot defined
Servicenone declared

registry facts

Source database details

Source DatabaseHomebrew formula API
Taphomebrew/core
Full Nameguetzli
Version Scheme0
Revision0
Head VersionHEAD
Bottle Stable Root URLhttps://ghcr.io/v2/homebrew/core
Deprecatedno
Disabledno
Keg Onlyno
URL Keys
  • head
  • stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Debian apt95%

guetzli 1.0.1-2

perceptual JPEG encoder

https://github.com/google/guetzli

sudo apt install guetzli
  • Section: graphics
  • Architecture: amd64
  • 4 dependencies
  • normalized package name match
  • Matched by: Guetzli
Debian stable package indexes · deb.debian.org · Debian stable package indexes: guetzli from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Nix95%

guetzli

nix profile install nixpkgs#guetzli
  • normalized package name match
  • Matched by: Guetzli
nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/gu/guetzli/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
Ubuntu apt95%

guetzli 1.0.1-1build3

perceptual JPEG encoder

https://github.com/google/guetzli

sudo apt install guetzli
  • Section: universe/graphics
  • Architecture: amd64
  • 4 dependencies
  • normalized package name match
  • Matched by: Guetzli
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: guetzli from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
apk95%

guetzli 0_git20191025-r3

Perceptual JPEG encoder that aims for excellent compression density at high visual quality

https://github.com/google/guetzli

sudo apk add guetzli
  • License: Apache-2.0
  • Architecture: x86_64
  • Source Package: guetzli
  • 1 dependencies
  • 1 provides
  • normalized package name match
  • Matched by: Guetzli
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: guetzli from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
apk95%

guetzli-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-dev
  • License: Apache-2.0
  • Architecture: x86_64
  • Source Package: guetzli
  • normalized package name match
  • Matched by: Guetzli
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: guetzli-dev from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
pacman95%

guetzli 1.0.1-5

Perceptual JPEG encoder

https://github.com/google/guetzli

sudo pacman -S guetzli
  • License: Apache
  • Architecture: x86_64
  • 1 dependencies
  • normalized package name match
  • Matched by: Guetzli
Arch Linux sync databases · geo.mirror.pkgbuild.com · Arch Linux sync databases: guetzli from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz
MacPorts95%

guetzli

sudo port install guetzli
  • normalized package name match
  • Matched by: Guetzli
MacPorts ports tree · api.github.com · MacPorts ports tree: graphics/guetzli/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1
Scoop95%

main/guetzli

scoop install main/guetzli
  • normalized package name match
  • Matched by: Guetzli
Scoop official bucket manifest trees · api.github.com · Scoop official bucket manifest trees: bucket/guetzli.json from https://api.github.com/repos/ScoopInstaller/Main/git/trees/master?recursive=1

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

Related tools

  • libpngRuntime dependency declared by Homebrew.
  • pkgconfBuild dependency declared by Homebrew.

Same workflow

  • caesiumcltShares av.db curated category or tags: cli, image-compression, media.
  • minidjvuShares av.db curated category or tags: cli, image-compression, media.
  • jbig2encShares av.db curated category or tags: cli, encoder, image-compression, media.
  • jpeg-archiveShares av.db curated category or tags: cli, image-compression, jpeg, media.
  • jpeg-xlShares av.db curated category or tags: cli, encoder, image-compression, media.
  • aftenShares av.db curated category or tags: cli, encoder, media.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Used sources

  • Geiger risk classifier
  • Nucleus package database
  • av.db category and tag curation
  • cross-ecosystem install command graph
  • curated package history
  • external package-manager database matches
  • package relationship graph
  • package version freshness
  • package-page enrichment