brew / rank 9242

Install asmfmt with Homebrew, MacPorts, Nix

Go Assembler Formatter. Version 1.3.2 via Homebrew; verified 2026-07-25. Also installable with nix: nix profile install nixpkgs#asmfmt.

Install command Security notes

install

Additional install commands

macOS

Homebrewverified · 100%

brew install asmfmt

local Homebrew formula metadata

MacPortsverified · 94%

sudo port install asmfmt

MacPorts ports tree · devel/asmfmt/Portfile · source: api.github.com

Linux

Nixverified · 92%

nix profile install nixpkgs#asmfmt

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

overview

Package summary

Go Assembler Formatter

Project links

Homepage

Commands and aliases

asmfmt

history

Project history and usage

asmfmt is a formatter for Go assembler files. Its README frames the project directly as `gofmt` for assembler code and documents `gofmt`-like flags such as `-d`, `-l`, and `-w`.

Project history

The GitHub repository was created in November 2015, and the first GitHub release, v1.0, was published in April 2016. The README's dated update log records many early formatting fixes around comments, macros, semicolons, and Go assembler syntax.

By the README's own status note, asmfmt is stable and its formatting is expected to change only for bugs. Later releases in 2018, 2019, 2021, and 2022 focused on fixes, module information, and keeping the standalone formatter buildable.

Adoption history

asmfmt is a niche Go ecosystem tool. It is available through Go install, GitHub releases, Homebrew, MacPorts, and Nix according to the input package facts. Homebrew analytics are small, reflecting that only developers who touch Go assembly files need it.

How it is used

The tool is run as `asmfmt [flags] [path ...]` and should be pointed only at assembler files, because the README warns that non-assembler files cannot be positively identified and may be mangled. Editor integration examples include GoLand file watchers and Emacs before-save hooks.

Why package nerds care

asmfmt is package-nerd interesting because it exports the Go ecosystem's formatter culture into the much smaller world of Plan 9 style Go assembly. It is a tiny binary with a stable output contract, exactly the sort of tool package managers like to preserve for reproducible developer workflows.

Timeline

2015: GitHub repository created and early formatting updates logged.
2016: v1.0 and v1.1 GitHub releases published.
2018: v1.2.0 released.
2021: v1.3.x releases refreshed module and comment handling.
2022: v1.3.2 released.

Related projects

The README positions asmfmt as analogous to gofmt and links Go package documentation on pkg.go.dev.

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 bottle metadata was recorded.

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

Command	Kind	Exposure	Note
`asmfmt`	executable	indexed executable	Discovered from the local executable index.

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 generated2026-08-03

manager version1.3.2

manager updated2026-07-25

local dataunknown

upstreamnot available

latest detectednot detected

okNo freshness warnings were generated.

install metadata

Package metadata

Package key	brew:asmfmt
Version	1.3.2
Package manager	Homebrew
Homepage	https://github.com/klauspost/asmfmt
Repository	https://github.com/klauspost/asmfmt
Last updated	2026-07-25T14:18:26-04:00
Pulse	updated
Bottle	not recorded
Service	none declared

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%

asmfmt

nix profile install nixpkgs#asmfmt

normalized package name match
Matched by: Asmfmt

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/as/asmfmt/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

MacPorts95%