JS

• micromark used by
  • mdast-util-from-markdown used by
  • remark-parse used by
    • prettier
    • mdx, which is used by
    • Next.js
    • Gatsby
    • Docusaurus
    • etc.
    • mdc, which is used by
    • Nuxt
  • Astro
• markdown-it used by
  • 11ty
  • vuepress
  • vitepress
• showdown used by (based on what they say)
  • GoogleCloudPlatform
  • Meteor
  • Stackexchange - forked as PageDown
• remarkable
  • used by Docusaurus
• marked used by
  • Hexo
  • docsify
• markup-it used by
  • gitbook
• commonmark.js
  • is the JS reference implementation of CommonMark

WASM

• markdown-wasm
  • uses md4c
• Wasm Markdown
  • uses pulldown-cmark
• parsedown
  • uses pulldown-cmark

See also

• Online playground
• npmtrends
• biome promises to add markdown eventually

Rust

• pulldown-cmark used by
  • mdBook
  • cobalt
• zola-markdown
  • uses pest.rs
  • used by zola
• markdown-rs
  • Sibling to micromark
• comrak
  • Rust port of cmark-gfm
• markdown-it-rust
  • Rust port of markdown-it library.
• Snekdown

Golang

• goldmark used by
  • Hugo
• gomarkdown/markdown
• golang-commonmark/markdown
• blackfriday
• mmark
• md

C

• cmark-gfm
  • used by Github
  • is an extended version of the cmark
• cmark
  • is the C reference implementation of CommonMark
• md4c

Zig

• koino
  • Zig port of comrak, which is Rust port of cmark-gfm
• markzig archived

Tree-sitter

Tree-sitter is a parser generator tool and an incremental parsing library. There are bindings for many languages (including Rust and JS)

• MDeiml/tree-sitter-markdown
• ikatyang/tree-sitter-markdown

Ruby

• jekyll-commonmark
  • used by jekyll
  • uses cmark-gfm
• redcarpet used by
  • slate
  • jekyll

Python

• python-markdown used by
  • MkDocs
  • Pelican
• marko

Clojure

• clarktown

Elixir

• md

Other

• "awesome-markdown" libraries
• lezer-parser/markdown
• babelmark

Crticism

• djot rationale
• markdown mistakes