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readme.md

syntax-tree is an organization that contains 100+ projects that deal with syntax trees based on unist. These trees typically deal with content: markdown (mdast), HTML (hast), natural language (nlcst), XML (xast), but also JavaScript (esast).

to learn unist, see its readme
you can use syntax trees without having to deal with them, by using unified and its plugins

unified

syntax-tree is part of the unified collective, which brings together organisations that work with content as structured data.

for more about us, see unifiedjs.com
for how the collective is governed, see unifiedjs/collective

Get involved

This community has a code of conduct. You must follow it when interacting with the community.

for questions, see support.md
to help, see contributing.md
to sponsor, see GitHub sponsors, thanks.dev, or OpenCollective

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unist unist Public

Universal Syntax Tree used by @unifiedjs

1k 30
mdast mdast Public

Markdown Abstract Syntax Tree format

1.5k 49
hast hast Public

Hypertext Abstract Syntax Tree format

914 29
nlcst nlcst Public

Natural Language Concrete Syntax Tree format

233 11
xast xast Public

Extensible Abstract Syntax Tree

94 3
esast esast Public

ECMAScript Abstract Syntax Tree format

59 2

Repositories

Type

All Public Sources Forks Archived Mirrors Templates

Language

All JavaScript TypeScript

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Showing 10 of 140 repositories

mdast-util-to-markdown Public
mdast utility to serialize markdown

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syntax-tree/mdast-util-to-markdown's past year of commit activity

JavaScript 145 MIT 37 0 0 Updated Nov 6, 2026
hast-util-from-html Public
hast utility to parse from HTML

syntax-tree/hast-util-from-html's past year of commit activity

JavaScript 42 MIT 2 0 0 Updated Nov 6, 2026
hast-util-raw Public
utility to reparse a hast tree

syntax-tree/hast-util-raw's past year of commit activity

JavaScript 13 MIT 6 0 0 Updated Nov 6, 2026
hastscript Public
utility to create hast trees

syntax-tree/hastscript's past year of commit activity

JavaScript 200 MIT 14 0 0 Updated Nov 6, 2026
mdast-util-gfm-task-list-item Public
mdast extension to parse and serialize GFM task list items

syntax-tree/mdast-util-gfm-task-list-item's past year of commit activity

JavaScript 6 MIT 5 0 0 Updated Nov 6, 2026
mdast-util-gfm-autolink-literal Public
mdast extension to parse and serialize GFM autolink literals

syntax-tree/mdast-util-gfm-autolink-literal's past year of commit activity

JavaScript 16 MIT 22 0 1 Updated Nov 6, 2026
mdast-util-gfm-table Public
mdast extension to parse and serialize GFM tables

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syntax-tree/mdast-util-gfm-table's past year of commit activity

JavaScript 15 MIT 13 0 0 Updated Nov 3, 2026
mdast-util-math Public
mdast extension to parse and serialize math

syntax-tree/mdast-util-math's past year of commit activity

JavaScript 21 MIT 5 0 0 Updated Nov 3, 2026
mdast-util-mdx-jsx Public
mdast extension to parse and serialize MDX JSX

syntax-tree/mdast-util-mdx-jsx's past year of commit activity

JavaScript 33 MIT 8 0 1 Updated Nov 3, 2026
mdast-util-directive Public
mdast extension to parse and serialize generic directives (`:cite[smith04]`)

syntax-tree/mdast-util-directive's past year of commit activity

JavaScript 20 MIT 11 0 0 Updated Oct 30, 2026

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Most used topics

unist syntax-tree util hast hast-util

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