Beautiful Markdown, Rendered Natively
A lightweight macOS viewer for Markdown files with Mermaid diagrams, KaTeX math, syntax highlighting, live reload, and a table of contents — all in a native app.
Everything You Need to Read Markdown
Simply Markdown renders your files beautifully with support for every Markdown feature you use.
Mermaid Diagrams
Render flowcharts, sequence diagrams, ER diagrams, pie charts, state machines, and more — all from plain text.
KaTeX Math
Beautiful LaTeX math rendering for equations, formulas, and scientific notation. Inline and display math supported.
Syntax Highlighting
Over 190 languages supported with automatic detection. Code blocks look exactly like your favorite editor.
Live Reload
Edit in your favorite text editor, see changes instantly. File watching with smart debouncing keeps everything in sync.
Table of Contents
Auto-generated sidebar navigation from your headings. Click to jump, see where you are, collapse sections.
Light & Dark Mode
Beautiful themes that follow your system preference or set manually. Typography optimized for reading comfort.
Quick Look
Preview Markdown files directly in Finder with spacebar. No need to open the app for a quick glance.
GitHub Flavored Markdown
Tables, task lists, strikethrough, autolinks, footnotes, and blockquotes — full GFM support out of the box.
See It in Action
From flowcharts to formulas, Simply Markdown renders everything beautifully
Mermaid Flowchart
Dark Mode
KaTeX Math
Syntax Highlighting
System Overview
ER Diagram
Science & Math
GFM & Frontmatter
Ready to View Markdown Beautifully?
Download Simply Markdown and turn your .md files into beautifully rendered documents.