What PowerMD is

PowerMD is a Markdown presentation tool that runs in your browser, with a built-in editor and a phone remote. You write a Markdown file; PowerMD shows it as 16:9 slides. There is nothing to install.

The idea

A deck is one Markdown file. Everything you already know works: headings, lists, tables, links, images, blockquotes, and fenced code. Presentation behaviour is added with small, invisible HTML-comment directives:

<!-- @directive arguments -->

Because directives are comments, the same file stays readable in any Markdown viewer; it just loses the layout.

The parts

flowchart LR
  D[Dashboard] --> E[Editor]
  D --> P[Player]
  E -->|Play| P
  R[Phone remote] <-->|controls| P

Part	What it is for
Dashboard	The start page: open a link or a file, continue editing, see your recent decks.
Editor	Write the deck, with a live preview next to your text.
Player	Present the deck full screen.
Remote	Use your phone to read your notes and change slides.

The mental model

• A file is a list of slides, separated by a line containing only ---.
• A slide is a grid of panels, separated by a line containing only ***.
• A panel is a vertical stack of blocks: Markdown paragraphs, images, callouts, diagrams, and so on.
• Directives change how a slide, a panel, or the next block looks.

All sizes are proportional to the slide width, so a deck looks the same on a laptop and on a projector.

What it is not

• It does not store your decks online. Your decks are Markdown files that you keep; the editor only keeps one recoverable working copy in your browser.
• It is not a general Markdown renderer. Unknown directives are ignored as ordinary HTML comments, and raw HTML in slides is not a supported authoring tool.