syntax-tree

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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Universal Syntax Tree used by @unifiedjs

1k 28
Markdown Abstract Syntax Tree format

1.4k 47
Hypertext Abstract Syntax Tree format

898 28
Natural Language Concrete Syntax Tree format

232 11
Extensible Abstract Syntax Tree

93 3
ECMAScript Abstract Syntax Tree format

58 2

Repositories

Showing 10 of 140 repositories

syntax-tree/unist-util-select’s past year of commit activity

JavaScript
70
MIT
12 0 1
Updated Jun 9, 2026
syntax-tree/hast-util-to-dom’s past year of commit activity

JavaScript
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ISC
7 0 1
Updated Jun 9, 2026
syntax-tree/mdast-util-gfm-table’s past year of commit activity

JavaScript
15
MIT
11 1 0
Updated Jun 3, 2026
syntax-tree/mdast-util-gfm-footnote’s past year of commit activity

JavaScript
5
MIT
1 0 0
Updated Jun 3, 2026
syntax-tree/mdast-util-gfm-strikethrough’s past year of commit activity

JavaScript
5
MIT
4 1 0
Updated Jun 3, 2026
syntax-tree/mdast-util-gfm-autolink-literal’s past year of commit activity

JavaScript
16
MIT
20 2 1
Updated Jun 3, 2026
syntax-tree/mdast-util-from-markdown’s past year of commit activity

JavaScript
283
MIT
26 2 2
Updated Jun 3, 2026
syntax-tree/unist’s past year of commit activity
syntax-tree/mdast-util-to-markdown’s past year of commit activity

JavaScript
139
MIT
27 4 3
Updated Apr 24, 2026
syntax-tree/hastscript’s past year of commit activity

JavaScript
199
MIT
14 0 1
Updated Mar 19, 2026