List of CommonMark Implementations

Recently maintained projects

C

• cmark (reference implementation, high performance executable and library)
• cmark-gfm - GitHub's fork of cmark with extensions for tables, etc.
• MD4C - very fast parser implementation with minimalistic interface (in XML-parsing analogy, it is more like a SAX parser, not DOM parser)

C#

• CommonMark.NET - available on NuGet
• Markdig - available on NuGet

Crystal

• markd - written in Crystal

Dart

• mdown

Elixir

• Cmark (wraps the C library)

Emacs Lisp

• cmark (port of commonmark.js)

Go

• golang-commonmark/markdown - pure Go implementation
• go-commonmark (wraps the C library)
• goldmark - pure Go implementation

Haskell

• cmark (wraps the C library)
• commonmark-hs - pure Haskell implementation

Haxe

• necmark (wraps the C library) - neko target

Java

• commonmark-java - pure Java

Scala

• cmark-scala (wraps the C library)

JavaScript

• commonmark.js (reference implementation) - npm install commonmark
• markdown-it (high speed pluggable implementation) - npm install markdown-it
• cmark-emscripten (port of the C library to WebAssembly) - npm install cmark-emscripten
• mdx (superset of CommonMark that adds embedded JSX and import/export syntax)

Lua

• cmark-lua (wraps the C library) - luarocks install cmark
• lcmark (higher level interface around cmark, adding YAML metadata, filters, and templates)

Perl

• CommonMark (wraps the C library)

PHP

• league/commonmark - Based on the JS/C++ reference implementations
• cmark - PECL extension based on the original cmark implementation

Python

• commonmark.py - Pure Python implementation directly based on commonmark.js
• mistletoe - Fastest, extensible implementation in pure Python
• paka.cmark (wraps the cmark C library) - pip install paka.cmark

Ruby/RubyMotion

• CommonMarker (wraps the C library)
• motion-markdown-it - Based on the JS markdown-it library, ported to Ruby and RubyMotion

R

• commonmark (wraps the C library)

Rust

• comrak - Architecture based on cmark-gfm, with GitHub extensions.
• pulldown-cmark - Novel, performance-oriented architecture.

Swift

• SwiftMark (wraps the C library)
• Down (wraps reference cmark)

Tcl

• tcl-cmark - wraps cmark-gfm

TypeScript

• DefinitelyTyped (JS library bindings, NuGet)
• FlavorMark (Rewrite of commonmark.js with focus on modularizing parsing logic, npm)

Not recently maintained

These projects are based on earlier versions of CommonMark and are now obsolete. But they might be good starting points for new work.

Idris

• idris-commonmark

Haxe

• comark

Lua

• luacmark
• commonmark-lua - luajit + FFI

Python

• pycommonmark

Swift

• CommonMark.swift
• SmarkDown.swft - Pure Swift