Open Source Packages

Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.

5929 packages

Kind2

postcss

A CSS transformation engine that parses styles into an AST, letting JS plugins lint, prefix, and rewrite CSS — the foundation beneath Autoprefixer, Tailwind, and 200+ other tools.

react-markdown

Safely render Markdown as React elements, no dangerouslySetInnerHTML required

@babel/core

The core JavaScript compiler that transforms next-generation syntax into code every browser and runtime can understand.

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.

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

unist-util-visit

Tiny utility to walk unist syntax trees and run a visitor on matching nodes

ts-morph

Navigate and manipulate TypeScript code with a friendlier compiler API wrapper

rehype

A unified-based HTML processor with a large plugin ecosystem

mdast-util-from-markdown

Parses markdown into a fully spec-compliant mdast syntax tree using the micromark tokenizer.

node-sql-parser

Parses SQL statements into an AST and converts them back to SQL across a dozen database dialects.

micromark

The smallest 100% CommonMark-compliant markdown parser, with GFM and MDX support

officeParser

Parse Office documents into a rich AST and generate Markdown, HTML, PDF, or RAG chunks

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.

markdown-to-jsx

A blazing-fast Markdown compiler that renders GFM-compliant Markdown straight to React, Vue, SolidJS, React Native, HTML, or AST — no dangerouslySetInnerHTML required.