OpenMark – Native macOS markdown editor with live rendering

Summary: OpenMark is a native macOS markdown editor that renders markdown files instantly with support for Mermaid diagrams, LaTeX math, and syntax highlighting. It offers a split view for editing and previewing, combining simplicity with powerful rendering without the complexity of knowledge management tools.

What it does

OpenMark opens and edits markdown files with a split view showing raw text and live rendered output, supporting diagrams and math. It is built with SwiftUI for native performance and avoids Electron or web wrappers.

Who it's for

It is designed for users who want a focused markdown editor on macOS without the complexity of developer tools or knowledge management systems.

Why it matters

OpenMark fills the gap between code-centric editors and complex knowledge apps by providing a simple, native markdown editing experience with instant rendering.