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Unified

November 14, 2025

Content as structured data

often used to process Markdown files, but it is a general content processing pipeline

unified
unifiedjs/unified: ☔ friendly interface backed by an ecosystem of plugins built for creating and manipulating content
unified-args - unified
unified-engine - unified

syntax-tree/unist: Universal Syntax Tree used by @unifiedjs specification for syntax trees

Learn - unified
unifiedjs/awesome-unified: Curated list of awesome unified resources
unified-plugin · GitHub Topics
vfile - Keywords - unified
vfile - unified
vfile-location - unified

Understanding the Power of Unification with Unified.js

Crowdsourcing the evolution of text parsing with unified

Remark

remark
remarkjs/remark: remark is a popular tool that transforms markdown with plugins. These plugins can inspect and change your markup. You can use remark on the server, the client, CLIs, deno, etc. markdown processor powered by a plugins ecosystem
Change to use micromark by wooorm · Pull Request #536 · remarkjs/remark

remarkjs/awesome-remark: Curated list of awesome remark resources
remark-plugin · GitHub Topics
remark - unified
remark - Keywords - unified

remarkjs/remark-gemoji: plugin to turn gemoji shortcodes into emoji 👍
remarkjs/remark-breaks: plugin to add break support, without needing spaces
kevin940726/remark-code-import: 📝 Populate code blocks from files
kevinzunigacuellar/remark-code-title: 🔌 remark plugin to add titles to code blocks
landakram/remark-wiki-link: Parse and render wiki links.
remarkjs/remark-directive: remark plugin to support directives

JulianCataldo/remark-lint-frontmatter-schema: Validate your Markdown frontmatter data against a JSON schema — remark-lint rule plugin VS Code plugin

Rehype

rehype
rehypejs/rehype: HTML processor powered by plugins part of the @unifiedjs collective HTML processor powered by a plugin ecosystem

rehypejs/awesome-rehype: Curated list of awesome rehype resources
rehype-plugin · GitHub Topics
rehype - Keywords - unified

rehypejs/rehype-external-links: rehype plugin to add rel (and target) to external links
JS-DevTools/rehype-toc: A rehype plugin that adds a table of contents (TOC) to the page

Retext

retext
retextjs/retext: natural language processor powered by plugins part of the @unifiedjs collective

retextjs/awesome-retext: Curated list of awesome retext resources
retext-plugin · GitHub Topics
retext/doc/plugins.md at main · retextjs/retext

Math

remarkjs/remark-math: remark and rehype plugins to support math
remark-math - unified

rehype-katex - unified
rehype-mathjax - unified