install

Additional install commands

macOS

Homebrewverified · 100%

brew install cljfmt

local Homebrew formula metadata

Linux

Nixverified · 92%

nix profile install nixpkgs#cljfmt

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

overview

Package summary

Formatting Clojure code

Project links

Commands and aliases

cljfmt

history

Project history and usage

cljfmt is a formatter and checker for Clojure code, designed to fix formatting errors with minimal structural changes while following defaults based on the Clojure Style Guide.

Project history

cljfmt is maintained under James Reeves's weavejester namespace. The project presents itself as both a standalone CLI and a Clojure library for detecting and fixing formatting errors in Clojure source.

The changelog shows a long 0.x evolution from Leiningen-era plugin usage toward modern Clojure tooling. Version 0.10.0 added support for `clj -T` tools and Babashka use, 0.10.2 added prebuilt native binaries, 0.11.0 moved important CLI options into configuration, and 0.16.x continued tightening configuration and indentation behavior.

Adoption history

cljfmt's adoption follows Clojure's build-tool culture: the README documents standalone binaries, Homebrew installation, Clojure CLI tools, Leiningen plugin usage, library usage, Babashka tasks, and editor integrations. The batch input records packages in Homebrew and Nix.

Editor integrations listed by upstream include Calva, CIDER, clojureVSCode, and vim-cljfmt, indicating that cljfmt became a formatting backend used beyond direct terminal invocation.

How it is used

Users run `cljfmt check` to detect formatting errors and `cljfmt fix` to rewrite files. Projects can configure behavior through `.cljfmt.edn`, `cljfmt.edn`, or a `:cljfmt` key in Leiningen's `project.clj`.

The indentation documentation explains Clojure-specific rules for macros and forms through `:indents` and `:extra-indents`, which is the core reason cljfmt is more than a generic pretty-printer.

Why package nerds care

cljfmt matters to package nerds because it packages Clojure style policy into a repeatable CLI used in CI, editors, and build tools. The move to prebuilt native binaries also made it friendlier to Homebrew-style formulae, where startup time and dependency weight matter.

For Clojure ecosystems, cljfmt is a representative example of a tool that must straddle Maven coordinates, Git-based Clojure tools, Leiningen plugins, Babashka tasks, standalone binaries, and editor integrations.

Timeline

2014: GitHub repository created.
2023: 0.10.0 adds Clojure CLI tool support and partial Babashka support.
2023: 0.10.2 adds prebuilt native binaries for the CLI.
2023: 0.11.0 splits indentation configuration and removes old CLI configuration keys.
2026: 0.16.0 ignores `.clj` config files by default and adds additional formatting options.
2026: 0.16.4 adds user-configuration validation.

Related projects

Related projects include zprint, the Clojure Style Guide, Leiningen, the official Clojure CLI tools, Babashka, Calva, CIDER, clojureVSCode, and vim-cljfmt.

Sources

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 5 platform targets.
Build metadata lists 2 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.

local files

Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.

Configuration files

Config paths the tool may read or write during local use.

Unix: .cljfmt.edncljfmt.ednproject.clj (:cljfmt key)

executables

Installed executables

Command	Kind	Exposure	Note
`cljfmt`	cli	global 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 version0.16.4

manager updated2026-04-13

local dataok

upstreamcurrent

latest detected0.16.4

https://github.com/weavejester/cljfmt

okNo freshness warnings were generated.

install metadata

Package metadata

Package key	brew:cljfmt
Version	0.16.4
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/cljfmt
Homepage	https://github.com/weavejester/cljfmt
Repository	https://github.com/weavejester/cljfmt
Upstream docs	https://github.com/weavejester/cljfmt#readme
License	EPL-1.0
Source archive	https://github.com/weavejester/cljfmt/archive/refs/tags/0.16.4.tar.gz
Last updated	2026-04-13T18:27:03Z
Pulse	updated
Build dependencies	graalvm, leiningen
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	cljfmt
Version Scheme	0
Revision	0
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	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%

cljfmt

nix profile install nixpkgs#cljfmt

normalized package name match
Matched by: Cljfmt

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/cl/cljfmt/package.nix from https://api.github.com/repos/NixOS/nixpkgs/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.

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/cljfmt.yml

Used sources

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

Install cljfmt with Homebrew, Nix