A quick gem to open a Markdown document in the default browser with some style applied.

Literate programming using markdown! Converts files to html or extracts the code snippets into one or more source files. To use: $ literate_md --help Options: --weave, -w: Produce documentation --tangle, -t: Produce code --outputdir, -o <s>: Directory to write files to --lan...

D★Mark is a markup language aimed at being able to write semantically meaningful text without limiting itself to the semantics provided by HTML or Markdown.

mdcat is a command line tool to cat markdown files with syntax highlight

Ruby bindings for the anydoc Rust crate. Converts Word, PowerPoint, Excel, OpenDocument, RTF, EPUB, CSV, and PDF documents into clean GitHub-Flavored Markdown, with one consistent output no matter which format goes in.

Markdown to HTML converter

Generate HTML documentation for your program with markdown and examples for different languages.

DocWright introspects your live Rails app to generate structured markdown documentation for your database schema, API routes, models, services, background jobs, and more. Human-written content is preserved across regenerations using smart merge markers.

Assembles files, shell commands, and git diffs into a single bundled file. Configured via presets or markdown frontmatter with protocol URL support (wfi://, guide://, tmpl://, prompt://, task://). Output to stdout or cache, with optional compression through ace-compressor.

ace-lint provides Ruby-native linting for markdown (kramdown), YAML (Psych), Ruby files (StandardRB/RuboCop), and frontmatter without Node.js or Python dependencies.

Programatically generate markdown documents.

markd is html builder for markdown, textile and wiki. markd makes well-formatted html with CSS and prittfied code by Google Code Prettify.

Rblines produces a Markdown text showing the differences between two strings/text. Clone of https://github.com/houfu/redlines.

Provides simple extensions to Markdown that are useful for academic writing

Blank is a rich Markdown editor for the web.

A minimal Rack app for drafting and previewing Markdown

A minimal MCP (Model Context Protocol) server that exposes ask_web_fetch as a callable tool over stdio. Designed for use with clients that support MCP (ZCode, Claude Code, etc.), it fetches a URL and returns clean markdown through the ask-web-fetch backend chain — fast pure-Ruby httpx fetch first...

Multipart templates made easy with pure Markdown and ERb

A library that uses Nokogiri to parse HTML and produce Markdown

Generate syntax highlighted HTML using Markdown/Lighthouse conventions.