Turn markdown files into PDF book

A Jekyll plugin that provides two Liquid tags (linkcard and polaroid) for creating styled card components with integrated Internet Archive functionality and image sizing. Also extends Markdown support to allow specifying image dimensions.

A library for working with ProseMirror documents in Ruby, including conversion between ProseMirror JSON and other formats such as Markdown.

MMMD (short for Mark My Manuscript Down) is a Markdown processor (as in "parser and translator") with a CLI interface utility and multiple modes of output (currently HTML and terminal).

=== What is GptHelpr? It is sometime necessary to provide context and explanations for your code. Instead of manually copying and formatting code snippets, GPT-Helpr automates the process with an interactive cli, generating a well-structured Markdown output, which can be copied to your clipboard...

TokenEstimator is a Rails gem that allows you to count tokens in Excel, CSV, PDF, TXT, Markdown, and input text files using different tokenizers.

Pandoc compiled to WebAssembly for document conversion in WASI environments. Run pandoc (Markdown to HTML, DOCX, PPTX, etc.) without native installation.

Apex is a unified Markdown engine with CommonMark, GFM, MultiMarkdown, and Kramdown compatibility. This gem provides a kramdown-style Ruby API backed by the Apex C library.

Adds Markdown support to Gloo.

A Ruby gem that reads OpenAPI YAML specifications and generates well-formatted Markdown documentation

A lightweight Rails Engine that enables any ActiveRecord model to use predefined templates via a simple one-to-many relationship. Each record has one template, templates can be reused across multiple records. Supports HTML, Markdown, and plain text formats with flexible categories.

A CLI tool that fetches web pages, converts them to markdown, and organizes them into local collections. Includes a built-in web UI for browsing and reading saved content.

Wraps Ferrum (Chrome headless via CDP) with AI-optimized content extraction: accessibility tree with refs, compact markdown snapshots, and stealth mode.

Sakusei is a build system for creating PDF documents from Markdown sources with support for ERB templates, VueJS components, and hierarchical styling.

A Ruby gem for managing AI prompts stored in markdown files with ERB interpolation. Centralizes prompt management and makes them easier to review, version control, and modify.

A Ruby gem to synchronize Markdown files to Notion pages with support for multiple update modes (create, append, replace, upsert)

A CLI tool that converts multiple Markdown files into a self-contained index.html with a searchable table of contents sidebar and chapter navigation.

A Jekyll plugin that automatically enhances Markdown links with Bootstrap CSS classes, security attributes, Font Awesome icons, and context-aware styling. Simplifies link management across Jekyll sites by handling styling, external link protection, and icon injection without manual intervention.

A Model Context Protocol (MCP) server that provides access to the Hotwire Club knowledge base. Builds a searchable SQLite database from markdown documents and exposes MCP tools and resources for searching and browsing documentation, categories, tags, and documents.

Document conversion library for Ruby — convert between Markdown, HTML, CSV, JSON, and YAML formats. Uses Ruby stdlib (csv, json, yaml), zero external dependencies.