Automic VaultAutomic Vault

brew

Install fx with Homebrew, apk, MacPorts, Nix, pacman, scoop, zypper

Terminal JSON viewer. Version 39.2.0 via Homebrew; verified from local package data.

Install commandSecurity notes

install

Additional install commands

macOS

Homebrewverified · 100%
brew install fx

local Homebrew formula metadata

MacPortsverified · 94%
sudo port install fx

MacPorts ports tree · sysutils/fx/Portfile · source: api.github.com

Linux

Alpine Linux apkverified · 92%
sudo apk add fx

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

Nixverified · 92%
nix profile install nixpkgs#fx

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

Arch Linux pacmanverified · 92%
sudo pacman -S fx

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

openSUSE zypperverified · 92%
sudo zypper install fx

openSUSE Tumbleweed package metadata · fx · source: download.opensuse.org

Windows

Scoopverified · 92%
scoop install main/fx

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

overview

Package summary

Terminal JSON viewer

Commands and aliases

  • fx

history

Project history and usage

fx is a terminal JSON viewer and processor that combines an interactive TUI with a JavaScript-powered command-line transformation model. Its current official site describes it as a CLI for JSON that can show JSON interactively, transform input with JavaScript, process streaming JSON, and also handle YAML and TOML.

Project history

The GitHub repository was created in January 2018, and GitHub Releases show 1.0.3 published the next day. The project is styled as f(x) in its README and documentation, with the docs explaining the name as the idea of applying a function to input data.

fx is now written in Go and embeds the goja JavaScript engine. Its release checklist shows a multi-channel distribution workflow: version bumps in the Go source, Snapcraft metadata, and npm package metadata, followed by npm publication, GitHub Actions for brew, snap, and Docker, and binary uploads to GitHub Releases.

Adoption history

fx fits into the post-jq wave of terminal JSON tools: it keeps JSON exploration in the terminal but adds a navigable interface, path suggestions, regex search, printing selected values to stdout, and JavaScript expressions instead of a separate query DSL. Supplied package-manager facts list packaging across Homebrew, apk, MacPorts, Nix, Arch, Scoop, and zypper.

How it is used

Typical use is either `fx data.json` or piping JSON into `fx` for interactive browsing. In processing mode, arguments are JavaScript functions or shorthand expressions such as `.name`, and input data flows through each expression in sequence. The docs also describe streaming mode for line-delimited or concatenated JSON and a slurp option for collective array processing.

Why package nerds care

Package maintainers care about fx because it ships as a single Go-based terminal binary while still exposing JavaScript as the transformation language. It is a representative modern CLI package that crosses TUI browsing, JSON pretty-printing, shell pipelines, npm distribution, binary releases, Homebrew, Snap, and Docker.

Timeline

  • 2018: GitHub repository created.
  • 2018: GitHub Release 1.0.3 published.
  • 2025: GitHub Release 39.2.0 published.
  • 2026: Repository metadata showed continued activity.

Related projects

  • The upstream README lists other Anton Medvedev terminal projects as related work: walk, howto, and countdown. In everyday package-manager context, fx is often evaluated near jq-style JSON processors, but the official sources emphasize fx's own TUI and JavaScript processing model rather than positioning it as a jq clone.

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 6 platform targets.
  • 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
fxcliglobal 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 version39.2.0
manager updated
local dataok
upstreamcurrent
latest detected39.2.0

https://github.com/antonmedv/fx

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

install metadata

Package metadata

Package keybrew:fx
Version39.2.0
Package managerHomebrew
Package manager pagehttps://formulae.brew.sh/formula/fx
Homepagehttps://fx.wtf
Repositoryhttps://github.com/antonmedv/fx
Upstream docshttps://fx.wtf/
LicenseMIT
Source archivehttps://github.com/antonmedv/fx/archive/refs/tags/39.2.0.tar.gz
Build dependenciesgo
Bottleavailable (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-installnot defined
Servicenone declared

registry facts

Source database details

Source DatabaseHomebrew formula API
Taphomebrew/core
Full Namefx
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.

Nix95%

fx

nix profile install nixpkgs#fx
  • normalized package name match
  • Matched by: Fx
nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/fx/fx/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
apk95%

fx 39.2.0-r6

Command-line tool and terminal JSON viewer

https://github.com/antonmedv/fx

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

fx-doc 39.2.0-r6

Command-line tool and terminal JSON viewer (documentation)

https://github.com/antonmedv/fx

sudo apk add fx-doc
  • License: MIT
  • Architecture: x86_64
  • Source Package: fx
  • normalized package name match
  • Matched by: Fx
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: fx-doc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
pacman95%

fx 39.2.0-1

Command-line tool and terminal JSON viewer

https://github.com/antonmedv/fx

sudo pacman -S fx
  • License: MIT
  • Architecture: x86_64
  • 1 dependencies
  • normalized package name match
  • Matched by: Fx
Arch Linux sync databases · geo.mirror.pkgbuild.com · Arch Linux sync databases: fx from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz
zypper95%

fx 39.2.0-1.4

Terminal JSON viewer

https://fx.wtf/

sudo zypper install fx
  • License: MIT
  • Category: Productivity/Text/Utilities
  • Architecture: x86_64
  • Source Package: fx
  • 1 provides
  • normalized package name match
  • Matched by: Fx
openSUSE Tumbleweed package metadata · download.opensuse.org · openSUSE Tumbleweed package metadata: fx from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst
MacPorts95%

fx

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

main/fx

scoop install main/fx
  • normalized package name match
  • Matched by: Fx
Scoop official bucket manifest trees · api.github.com · Scoop official bucket manifest trees: bucket/fx.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

  • goBuild dependency declared by Homebrew.
  • fxSame normalized package name appears in another local ecosystem. Shared terms: fx, json, viewer.

Same workflow

  • jsawkShares av.db curated category or tags: cli, developer-tools, javascript, json, json-tools.
  • jshonShares av.db curated category or tags: cli, developer-tools, json, json-tools.
  • chalk-cliShares av.db curated category or tags: cli, developer-tools, javascript, terminal.
  • rich-cliShares av.db curated category or tags: cli, developer-tools, json, terminal.
  • charsShares av.db curated category or tags: cli, developer-tools, terminal.
  • chatbladeShares av.db curated category or tags: cli, developer-tools, terminal.
  • fxSame normalized package name in another local ecosystem.

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.

Combined YAML source

View the package source record on GitHub.

combined/fx.yml

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