A fast Markdown viewer for Mac
MD Flow is a native Mac app for reading Markdown. Point it at any folder and every .md file inside renders the moment you click it — Mermaid diagrams, KaTeX math, Obsidian-style callouts and YAML frontmatter all displayed properly instead of as raw text.
That matters more than it used to. Between Claude and ChatGPT exports, generated research, meeting notes and project READMEs, most people now keep folders of Markdown they mainly need to read — and macOS gives you two poor options for that: Quick Look's bare-bones text preview, or opening a heavyweight editor just to look at a file. MD Flow is the third option. It's free on the App Store for Mac, iPhone and iPad, with a one-time $7.99 Pro unlock (unlimited folders, cross-folder search, PDF export) and no subscription.
#Browse folders, preview instantly
Connect any folder — a project repo, your documentation tree, an iCloud folder, an Obsidian vault. MD Flow shows a clean, native file browser next to a live preview pane:
- Click a file, see it rendered instantly — no open/close cycle
- Syntax-highlighted code blocks, tables, task lists
- Mermaid diagrams rendered inline — flowcharts, sequence diagrams, Gantt charts
- KaTeX math, callout blocks, and YAML frontmatter shown as a tidy header
- Table of contents for long documents, find-in-document, folder search
#Native, not another Electron app
MD Flow is built with SwiftUI. It launches fast, feels like a Mac app, and stays light. There is no indexing step, no database, no workspace concept — it reads your folders directly, so it works with the structure you already have.
#Private by default
Your files never leave your Mac. No account, no cloud processing, no lock-in. What MD Flow reads stays on your machine.
#Made for the AI-files era
If you save Claude or ChatGPT outputs, generated research, or project docs as .md files, MD Flow is the reading layer for that growing archive: browse it, search it, reopen recent files, and export any document as a polished PDF with MD Flow Pro.
MD Flow is free on the App Store, with a one-time Pro unlock — no subscription. It also runs on iPhone and iPad with the same purchase — see Markdown on iPhone and iPad.