Edmund
A native markdown editor for macOS with live preview.
Pitch
Edmund is a minimal, file-based, extensible markdown editor designed for macOS. Whether as a companion alongside your Markdown knowledge base or as a standalone editor, Edmund blends in with macOS and works seamlessly with your files wherever they are.
Description
Differentiators
- Live preview: Typora/Obsidian-style WYSIWYG.
- File-based: Open
.mdfiles from anywhere. No vaults or dedicated folders required. - Native: 100% Swift. Based on AppKit and TextKit 2. No Electron. Minimal dependencies.
- Fast: Handles ~1-2MB files with ease. No launch lag.
- Extensible: Opt-in math and Obsidian syntax. Extensions system coming soon!
- Private: Offline by default. Optional blocking of external links and HTML sanitization.
Our goal is to be the CotEditor of Markdown editors, i.e. elegant, powerful, configurable, and native inside out. See my blog post for more of the motivation and design philosophy.
Screenshots:




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