Marp

Marp lets users write slide decks by authoring a single Markdown file, using the CommonMark syntax with a simple horizontal ruler (`---`) to separate slides. In addition to plain text, the format supports directives for images, math typesetting, auto‑scaling and other extended features, enabling richer content without leaving Markdown. Built‑in themes such as default, gaia, and uncover provide ready‑made styling, while custom CSS can be applied to create bespoke designs.

The core engine can render the Markdown into HTML, PDF, or PowerPoint files, leveraging Chromium for reliable conversion. A pluggable architecture based on the Marpit framework allows developers to extend functionality or integrate additional tools. The ecosystem includes a VS Code extension for live editing and preview, as well as a command‑line interface for batch processing.

Because it is fully open‑source and free, Marp is suitable for developers, educators, and anyone who prefers a text‑based workflow for creating cross‑platform presentations.