syntax-tree

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We've verified that the organizationsyntax-tree controls the domain:
- unifiedjs.com
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syntax-tree is an organization that contains 100+ projects that deal withsyntax trees based onunist.These trees typically deal with content:markdown (mdast),HTML (hast),natural language (nlcst),XML (xast),but also JavaScript (esast).

to learn unist,seeits readme
you can use syntax trees without having to deal with them,by usingunified 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,seeunifiedjs.com
for how the collective is governed,seeunifiedjs/collective

Get involved

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

for questions,seesupport.md
to help,seecontributing.md
to sponsor,seeGitHub sponsors,thanks.dev,orOpenCollective

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unistunistPublic
Universal Syntax Tree used by @unifiedjs
982 26
mdastmdastPublic
Markdown Abstract Syntax Tree format
1.4k 48
hasthastPublic
Hypertext Abstract Syntax Tree format
877 28
nlcstnlcstPublic
Natural Language Concrete Syntax Tree format
229 11
xastxastPublic
Extensible Abstract Syntax Tree
89 3
esastesastPublic
ECMAScript Abstract Syntax Tree format
57 2

Repositories

Showing 10 of 140 repositories

mdast Public
Markdown Abstract Syntax Tree format
syntax-tree/mdast’s past year of commit activity
1,379 48 0 0 UpdatedFeb 4, 2026
unist-util-visit Public
utility to visit nodes
syntax-tree/unist-util-visit’s past year of commit activity
JavaScript 337MIT 21 0 0 UpdatedJan 22, 2026
hast-util-to-parse5 Public
utility to transform hast to Parse5’s AST
syntax-tree/hast-util-to-parse5’s past year of commit activity
JavaScript 2MIT 3 0 0 UpdatedDec 4, 2025
mdast-util-to-hast Public
utility to transform mdast to hast
syntax-tree/mdast-util-to-hast’s past year of commit activity
JavaScript 119MIT 47 0 0 UpdatedNov 23, 2025
mdast-util-mdx-expression Public
mdast extension to parse and serialize MDX or MDX.js expressions
syntax-tree/mdast-util-mdx-expression’s past year of commit activity
JavaScript 5MIT 2 0 0 UpdatedNov 19, 2025
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 32MIT 6 0 0 UpdatedNov 19, 2025
unist-util-is Public
utility to check if a node passes a test
syntax-tree/unist-util-is’s past year of commit activity
JavaScript 44MIT 8 0 0 UpdatedOct 22, 2025
unist-util-visit-parents Public
utility to recursively walk over unist nodes, with ancestral information
syntax-tree/unist-util-visit-parents’s past year of commit activity
JavaScript 80MIT 7 1 0 UpdatedOct 16, 2025
hast-util-raw Public
utility to reparse a hast tree
syntax-tree/hast-util-raw’s past year of commit activity
JavaScript 12MIT 4 0 0 UpdatedApr 21, 2025
hast-util-to-jsx-runtime Public
hast utility to transform to preact, react, solid, svelte, vue, etc
syntax-tree/hast-util-to-jsx-runtime’s past year of commit activity
JavaScript 81MIT 4 0 0 UpdatedMar 5, 2025