MarkEdit

WHAT IS IT?

MarkEdit is a native macOS Markdown editor that channels TextEdit's minimalist spirit, but dedicated exclusively to Markdown. The app weighs 4 MB, handles files up to 10 MB without breaking a sweat, and collects zero user data. A sober alternative to bloated apps like Typora or Obsidian when you just want to write.

WHY IS IT INTERESTING?

• Native macOS: Clean Cocoa UI with full system integration — force-touch word lookup, Services, Shortcuts and AppleScript support.
• Lightweight and fast: 4 MB on disk, instant launch, responsive even on large files. No Electron, no lag.
• Real extensibility: Inject custom CSS and JavaScript, plus CodeMirror 6 extensions to tweak the editor to your exact needs.
• Pro-grade features: Multi-caret editing, code folding, strict GFM compliance, tables support, math and diagram previews.
• Privacy by default: Zero telemetry, zero account, zero cloud — just a text editor that respects your disk.

USE CASES

• Write READMEs, notes and technical documentation without leaving the native macOS ecosystem.
• Replace TextEdit as the default editor for .md files with proper syntax highlighting.
• Customize editor appearance and behavior through CSS/JS without waiting for an official plugin.
• Automate Markdown file editing via Shortcuts or AppleScript in macOS workflows.