install

Additional install commands

macOS

Homebrewverified · 100%

brew install merman-cli

local Homebrew formula metadata

overview

Package summary

Mermaid.js, but headless, in Rust

Project links

Commands and aliases

merman-cli

history

Project history and usage

merman-cli is the command-line wrapper around Merman, an independent Rust implementation of Mermaid parsing, layout, and rendering. The project describes itself as Mermaid.js, but headless, in Rust, and notes that it is not affiliated with or endorsed by the Mermaid project. Its stated compatibility target is a pinned Mermaid release, with parity checked through semantic, layout, and SVG baselines.

Project history

Its niche is the browserless side of Mermaid rendering. Instead of launching Chromium or a JavaScript runtime, Merman exposes Rust crates for parsing, semantic JSON, typed render models, SVG, raster output, and terminal-oriented ASCII or Unicode output. The CLI packages those capabilities for users who want Mermaid-style diagrams in build scripts, terminals, or Rust-heavy environments where headless browser dependencies are undesirable.

How it is used

Because the public footprint is still mostly the project README, docs.rs, and crates packaging, there is limited independent history to report. The strongest sourced context is technical: it is a parity-focused compatibility implementation by Mermaid users, distributed as Rust crates and as a Homebrew CLI.

Sources

security posture

No protected-tool coverage found yet

No matching local secret-handling manifest was found for merman-cli. Nucleus package metadata is still published here so future coverage has a stable package URL.

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
`merman-cli`	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 version0.7.0

manager updated2026-06-11

local dataunknown

upstreamnot available

latest detectednot detected

okNo freshness warnings were generated.

install metadata

Package metadata

Package key	brew:merman-cli
Version	0.7.0
Package manager	Homebrew
Homepage	https://frankorz.com/merman/
Repository	https://github.com/Latias94/merman
Last updated	2026-06-11T23:06:48Z
Pulse	updated
Bottle	not recorded
Service	none declared

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/merman-cli.yml

Used sources

cross-ecosystem install command graph
curated package history
pkg.so package database
pkgdb category and tag curation

Install merman-cli with Homebrew