OpenMark: AI agents write markdown. OpenMark makes it beautiful.

The whole point is focus. Open a markdown file, read it or edit it, close it. Back to AI Tools. That’s it. The markdown editor landscape has a weird gap in it. On one side, you have VS Code. It’s a phenomenal code editor, but it treats markdown like source code. You’re editing in a monospaced font with line numbers. It’s designed for developers, not writers. The preview pane helps, but you’re still context-switching between raw text and rendered output. On the other side, you have Obsidian. It’s powerful. I’ve used it. But Obsidian is a knowledge management system that happens to use markdown. The plugin ecosystem is massive, the graph view is cool, and the linking system is deep. It’s also complex. I don’t need a second brain. I need a markdown editor. Openmark sits in the space between them. It’s a native macOS app built with SwiftUI. It renders markdown beautifully so you can read your files like documents. It has a split view so you can edit on one side and preview on the other. Syntax highlighting makes the raw markdown easy to work with. Diagrams and equations just work. And it feels like a Mac app because it is one. No Electron, no web wrapper, no startup lag.