Quarkdown

Quarkdown, led by Giorgio Garofalo (GitHub: iamgio) with community contributors and "proudly made in Italy," combines Markdown's simplicity with LaTeX-level typesetting to produce research papers, reports, wikis, notes, and presentations from a single source — with over 15,000 GitHub stars. Standard Markdown syntax works immediately, with optional extensions layered on top; output formats include HTML, PDF, Markdown, and plain text; any Markdown element can be redefined from a single configuration point; and a Turing-complete scripting layer supports workflow automation and content reuse across documents. Live preview compiles in real time as you type, and it's built with AI-agent integration in mind via built-in skills for Claude Code. Free and open source forever, with installers for Linux, macOS, and Windows via Homebrew, Scoop, and other package managers. Good fit for a technical writer or researcher who wants LaTeX-grade typeset output from Markdown source, without actually learning or writing LaTeX.