macOS
Homebrewverified · 100%
brew install cmarklocal Homebrew formula metadata
MacPortsverified · 94%
sudo port install cmarkMacPorts ports tree · devel/cmark/Portfile · source: api.github.com
brew
Install cmark with Homebrew, apk, apt, dnf, MacPorts, Nix, pacman, zypper
Strongly specified, highly compatible implementation of Markdown. Version 0.31.2 via Homebrew; verified from local package data.
install
Additional install commands
Linux
Alpine Linux apkverified · 92%
sudo apk add cmarkAlpine Linux edge package indexes · cmark · source: dl-cdn.alpinelinux.org
Debian aptverified · 92%
sudo apt install cmarkDebian stable package indexes · cmark · source: deb.debian.org
Fedora dnfverified · 92%
sudo dnf install cmarkFedora Rawhide package metadata · cmark · source: dl.fedoraproject.org
Nixverified · 92%
nix profile install nixpkgs#cmarknixpkgs package indexes · pkgs/by-name/cm/cmark/package.nix · source: api.github.com
Arch Linux pacmanverified · 92%
sudo pacman -S cmarkArch Linux sync databases · cmark · source: geo.mirror.pkgbuild.com
openSUSE zypperverified · 92%
sudo zypper install cmarkopenSUSE Tumbleweed package metadata · cmark · source: download.opensuse.org
overview
Package summary
Strongly specified, highly compatible implementation of Markdown
Project links
Commands and aliases
- cmark
history
Project history and usage
cmark is the C reference implementation of CommonMark, providing both a libcmark parsing/rendering library and a cmark command-line program. It exists to make Markdown behavior testable, portable, fast, and consistent across implementations.
Project history
CommonMark grew out of the need for an unambiguous Markdown specification after years of divergent Markdown implementations. The CommonMark site says the effort started in 2014 with implementers and large-scale Markdown users, and the cmark README credits John MacFarlane with the original library and program alongside contributors to parsing, optimization, links, emphasis, APIs, and tests.
Adoption history
The CommonMark site reports implementations for dozens of programming languages and lists adopters including Discourse, GitHub, GitLab, Reddit, Qt, Stack Overflow/Stack Exchange, and Swift. The batch input lists cmark packages across Homebrew, Alpine, Debian, Fedora, MacPorts, Nix, Arch, Ubuntu, and openSUSE/zypper.
How it is used
The cmark program parses CommonMark documents and renders HTML, groff man, LaTeX, CommonMark, or XML AST output. The library exposes an AST for programmatic manipulation and is wrapped by bindings for multiple languages; the README also documents security behavior around raw HTML and unsafe links.
Why package nerds care
cmark is important because it gives package ecosystems a small, fast, C99, dependency-light implementation of a standardized Markdown dialect. It is a common build or test dependency for projects that want Markdown rendering without inheriting each host language's quirks.
Timeline
- 2004: Markdown is released by John Gruber with Aaron Swartz, providing the background problem CommonMark later addresses.
- 2014: CommonMark publishes early spec versions, with 0.5 and 0.6 appearing in October.
- 2015: the current commonmark/cmark GitHub repository is created.
- 2024: CommonMark spec 0.31.2 is listed as the latest spec version on spec.commonmark.org.
Related projects
- cmark is related to the CommonMark spec, commonmark.js, cmark-gfm, Markdown.pl, Babelmark, and language bindings for Go, Haskell, Ruby, Lua, Perl, Python, R, Scala, and PHP listed in the README.
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 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
| Command | Kind | Exposure | Note |
|---|---|---|---|
cmark | 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 version0.31.2
manager updated
local dataok
upstreamcurrent
latest detected0.31.2
https://github.com/commonmark/cmark
- infoNo package-manager update timestamp was available.low confidence
install metadata
Package metadata
| Package key | brew:cmark |
|---|---|
| Version | 0.31.2 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/cmark |
| Homepage | https://commonmark.org/ |
| Repository | https://github.com/commonmark/cmark |
| Upstream docs | https://commonmark.org/ |
| License | BSD-2-Clause |
| Source archive | https://github.com/commonmark/cmark/archive/refs/tags/0.31.2.tar.gz |
| Build dependencies | cmake |
| Bottle | available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, 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 | cmark |
| Version Scheme | 0 |
| Revision | 0 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
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%
cmark 0.30.2-6+b2
CommonMark parsing and rendering program
https://github.com/commonmark/cmark
sudo apt install cmark- Section: text
- Architecture: amd64
- Source Package: cmark
- 1 dependencies
- normalized package name match
- Matched by: Cmark
Debian apt95%
libcmark-dev 0.30.2-6+b2
development files for CommonMark parsing and rendering library
https://github.com/commonmark/cmark
sudo apt install libcmark-dev- Section: text
- Architecture: amd64
- Source Package: cmark
- 1 dependencies
- normalized package name match
- Matched by: Cmark
Debian apt95%
libcmark0.30.2 0.30.2-6+b2
CommonMark parsing and rendering library
https://github.com/commonmark/cmark
sudo apt install libcmark0.30.2- Section: libs
- Architecture: amd64
- Source Package: cmark
- 1 dependencies
- normalized package name match
- Matched by: Cmark
Nix95%
cmark
nix profile install nixpkgs#cmark- normalized package name match
- Matched by: Cmark
Ubuntu apt95%
cmark 0.30.2-6build1
CommonMark parsing and rendering program
https://github.com/commonmark/cmark
sudo apt install cmark- Section: universe/text
- Architecture: amd64
- 1 dependencies
- normalized package name match
- Matched by: Cmark
Ubuntu apt95%
libcmark-dev 0.30.2-6build1
development files for CommonMark parsing and rendering library
https://github.com/commonmark/cmark
sudo apt install libcmark-dev- Section: universe/text
- Architecture: amd64
- Source Package: cmark
- 1 dependencies
- normalized package name match
- Matched by: Cmark
Ubuntu apt95%
libcmark0.30.2 0.30.2-6build1
CommonMark parsing and rendering library
https://github.com/commonmark/cmark
sudo apt install libcmark0.30.2- Section: universe/libs
- Architecture: amd64
- Source Package: cmark
- 1 dependencies
- normalized package name match
- Matched by: Cmark
apk95%
cmark 0.31.2-r0
C reference implementation of CommonMark, a rationalized Markdown spec
https://github.com/commonmark/cmark
sudo apk add cmark- License: BSD-2-Clause
- Architecture: x86_64
- Source Package: cmark
- 1 dependencies
- 1 provides
- normalized package name match
- Matched by: Cmark
apk95%
cmark-dev 0.31.2-r0
C reference implementation of CommonMark, a rationalized Markdown spec (development files)
https://github.com/commonmark/cmark
sudo apk add cmark-dev- License: BSD-2-Clause
- Architecture: x86_64
- Source Package: cmark
- 1 dependencies
- 1 provides
- normalized package name match
- Matched by: Cmark
apk95%
cmark-doc 0.31.2-r0
C reference implementation of CommonMark, a rationalized Markdown spec (documentation)
https://github.com/commonmark/cmark
sudo apk add cmark-doc- License: BSD-2-Clause
- Architecture: x86_64
- Source Package: cmark
- normalized package name match
- Matched by: Cmark
apk95%
libcmark 0.31.2-r0
C reference implementation of CommonMark, a rationalized Markdown spec (libraries)
https://github.com/commonmark/cmark
sudo apk add libcmark- License: BSD-2-Clause
- Architecture: x86_64
- Source Package: cmark
- 1 dependencies
- 1 provides
- normalized package name match
- Matched by: Cmark
dnf95%
cmark 0.31.1-3.fc44
CommonMark parsing and rendering
sudo dnf install cmark- License: BSD-2-Clause AND MIT
- Category: Unspecified
- Architecture: i686
- Source Package: cmark
- 3 dependencies
- 1 provides
- normalized package name match
- Matched by: Cmark
dnf95%
cmark-devel 0.31.1-3.fc44
Development files for cmark
sudo dnf install cmark-devel- License: BSD-2-Clause AND MIT
- Category: Unspecified
- Architecture: i686
- Source Package: cmark
- 5 dependencies
- 3 provides
- normalized package name match
- Matched by: Cmark
dnf95%
cmark-lib 0.31.1-3.fc44
CommonMark parsing and rendering library
sudo dnf install cmark-lib- License: BSD-2-Clause AND MIT
- Category: Unspecified
- Architecture: i686
- Source Package: cmark
- 2 dependencies
- 2 provides
- normalized package name match
- Matched by: Cmark
pacman95%
cmark 0.31.2-1
CommonMark parsing and rendering library and program in C
https://github.com/commonmark/cmark
sudo pacman -S cmark- License: BSD-2-Clause
- Architecture: x86_64
- 1 dependencies
- normalized package name match
- Matched by: Cmark
zypper95%
cmark 0.31.1-1.3
CommonMark parsing and rendering library and program in C
sudo zypper install cmark- License: BSD-2-Clause AND MIT AND CC-BY-SA-4.0
- Category: Productivity/Text/Utilities
- Architecture: x86_64
- Source Package: cmark
- 2 dependencies
- 1 provides
- normalized package name match
- Matched by: Cmark
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.
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