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Clearly

Writing & DocumentsFree & open sourceby Shpigford

A native Markdown editor for Mac, iPhone, and iPad — with live Mermaid diagrams, KaTeX math, and GFM tables, no cloud required.

Clearly screenshot 1

Clearly renders as you type: Mermaid diagrams, KaTeX equations, and GitHub-Flavored Markdown tables all show live in the preview pane, not just after export. It's a genuinely native Swift app across Mac, iPhone, and iPad, sharing the same document format everywhere without a subscription or account.

Why it makes the list

Most Markdown editors that support diagrams and math do it through a web view wrapping a JavaScript renderer. Clearly does the same rendering natively, which means it stays fast and consistent across every Apple device it runs on — write a diagram on your Mac, open the same file on your iPad, and it looks identical.

Standout features

  • Live Mermaid diagram rendering inline in the preview
  • KaTeX math rendering for equations and formulas
  • Full GFM table support, rendered live as you type
  • Native on Mac, iPhone, and iPad, same document format everywhere
  • No cloud dependency — files stay wherever you put them
  • No subscription — free to use across all your devices

Pricing

Completely free and open source.

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