OpenMark vs Obsidian

Which markdown editor is right for you?

Both OpenMark and Obsidian work with markdown files — but they're built for fundamentally different jobs. OpenMark is a file editor: open a .md file, see it rendered beautifully, edit it. Obsidian is a knowledge management system: vaults, backlinks, plugins, sync. Here's how they compare.

Feature comparison

Feature
OpenMark
Obsidian
Primary use case
Lightweight file editor — open any .md file from anywhere
Full knowledge management — vaults, backlinks, graph view
File access
Opens any .md file directly — no vault or import step
Vault-based — files must live in a designated folder
Platform
Native macOS — SwiftUI, Liquid Glass, ~9 MB
Electron — cross-platform (Mac, Windows, Linux, iOS, Android)
Pricing
$9.99 — one-time purchase, own forever
Free (personal use) — Sync $8/mo, Publish $8/mo
Setup
Install and open a file — nothing to configure
Create a vault, install plugins, configure settings
Mermaid diagrams
Built-in via bundled Mermaid.js
Built-in (since v0.15)
LaTeX math
Built-in via bundled KaTeX
Built-in via MathJax
Plugin ecosystem
No plugins — ships with everything included
Hundreds of community plugins for extended functionality
Backlinks & graph
Not supported — file editor, not a knowledge base
Core feature — bidirectional links, graph view, tags
macOS integration
Spotlight indexing, Quick Look, Shortcuts, Apple Intelligence
Basic macOS support — no Spotlight indexing or Shortcuts

Which one should you choose?

Choose OpenMark if…

  • You want to open individual .md files quickly without setting up a vault
  • You're on Mac and want an app that feels native — not an Electron wrapper
  • You need Mermaid diagrams and LaTeX math without installing plugins
  • You want to pay once and never think about subscriptions again

Choose Obsidian if…

  • You manage a large knowledge base with hundreds of linked notes
  • You need cross-device sync across Mac, Windows, iOS, and Android
  • You rely on backlinks, graph view, and a plugin ecosystem
  • You want to build a second brain with inter-connected notes

Try OpenMark — $9.99, one-time

No subscription. No vault setup. Just open a .md file and see it beautifully rendered.

Download on the Mac App Store

Also compare OpenMark with:

vs VS Code →vs Typora →vs iA Writer →vs Bear →vs MacDown →vs Ulysses →vs MarkEdit →vs Mark Text →