Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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typescript-eslint
The official meta-package bundling the TypeScript ESLint parser, plugin, and rule presets behind a single typed config() helper.
highlight.js
Zero-dependency JavaScript syntax highlighter with automatic language detection for over 190 languages.
React Syntax Highlighter
A React component for syntax-highlighting code blocks using highlight.js or Prism ASTs, with JavaScript-based styles and no external stylesheet required.
React CodeMirror
A fully-typed React component and hook for embedding the CodeMirror 6 code editor with themes and language extensions.
remark
A plugin-powered markdown processor that parses, transforms, and serializes markdown on top of unified.
unified
Parse, inspect, transform, and serialize content through syntax-tree plugins.
lowlight
Virtual syntax highlighting for virtual DOMs and non-HTML things, powered by highlight.js
rehype-highlight
Rehype plugin that syntax-highlights code blocks at build time using lowlight and highlight.js.
rehype
A unified-based HTML processor with a large plugin ecosystem
email-validator
Robust email address syntax and deliverability validation for Python
mdast-util-from-markdown
Parses markdown into a fully spec-compliant mdast syntax tree using the micromark tokenizer.
recast
JavaScript AST transformer and nondestructive pretty-printer for building codemods
mdast-util-to-markdown
Serializes an mdast syntax tree back into CommonMark-compatible markdown text, with pluggable handlers for custom syntax extensions.
Chroma
A general-purpose syntax highlighting library for Go, supporting 200+ languages and multiple output formats out of the box.
syntect
High-quality Rust syntax highlighting using Sublime Text's grammar and theme formats