Featherdown icon Featherdown 1.0 $12.99 · one-time Buy
macOS markdown viewer & editor

A markdown reader
that weighs
almost nothing.

Featherdown opens .md files already rendered, previews them in Finder with a tap of Space, and speaks your Obsidian vault — in a 1.9 MB download.

Signed & notarized Universal binary Nothing leaves your Mac
Featherdown showing a rendered Markdown note in dark mode: a heading, a blockquote, a task list with wikilinks, and a formatted table
opens rendered · ⌘E for source

The party trick

Press Space.
Your markdown renders.

Featherdown installs a Quick Look extension, so any .md file previews rendered right inside Finder — headings, tables, task lists, syntax-highlighted code. No app to open, no window to manage. Just select and tap Space.

  • The whole document, formatted — not a wall of raw asterisks.
  • Finder renders the HTML itself, so the preview is instant.
  • An Open with Featherdown button is right there when you want more.
  • Styled thumbnails, too — folders of notes stop looking like plain text files.
A Finder Quick Look panel previewing a Markdown note rendered by Featherdown, with an Open with Featherdown button in the top-right corner
Read first, write when you want

Viewer-first. Editor when you ask.

Files open the way you actually read them — rendered. When you need to change something, one keystroke flips to the source, or split the window and watch it update as you type.

Preview · ⌘1

Clean, GitHub-style rendering

A calm reading view with real typography, light and dark following your system. This is what opens when you double-click a note.

Featherdown in preview mode showing a rendered Markdown note
Split · ⌘3

Source and preview, side by side

Edit in a monospaced pane on the left while the rendered view updates live on the right — scroll-synced, and it keeps your place.

Featherdown in split mode with Markdown source on the left and the live rendered preview on the right
Fluent in your notes

It speaks Obsidian, and GitHub.

Featherdown is built for the way people actually keep notes — vaults full of cross-linked Markdown — not just single files.

// WIKILINKS

Follows [[wikilinks]]

Double-bracket links resolve across your vault and open in place, with ⌘[ and ⌘] history — just like Obsidian.

// FRONTMATTER

Tidy YAML frontmatter

That block of title: and tags: at the top collapses into a clean details section instead of shouting at you.

// GFM

Full GitHub Flavored Markdown

Tables, task lists, footnotes, strikethrough, and autolinks — powered by GitHub's own cmark-gfm parser.

// IMAGES

Vault-aware images

An images/ folder at the vault root still resolves from a note nested three folders deep. It walks up to find them.

// CODE

Syntax highlighting

Fenced code blocks are highlighted in both the app and the Finder preview, loaded only when a document actually has code.

// DEFAULT APP

One-click default

Make Featherdown the default for .md from Settings — a single button, no Launch Services spelunking.

The featherweight part

1.9 MB. Not 180.

Most modern Markdown editors bundle an entire copy of Chrome to draw text. Featherdown renders through the Mac's own WebKit, so the whole app is smaller than a phone photo.

Featherdown Typical Electron editor
Download size1.9 MB150–250 MB
Rendering engineSystem WebKitBundled Chromium
Quick Look in FinderYesNo
Opens rendered by defaultYesUsually source-first
Obsidian wikilinksYesVaries
Price$12.99 once$15+ or subscription
No strings

It reads files. That's all.

  • [net]No network access. Featherdown never connects to the internet. No analytics, no telemetry, no account. Your notes stay yours.
  • [sig]Signed & notarized by Apple. The download is the exact build that passed Apple's notarization — it opens with a normal double-click, no Gatekeeper warning.
  • [local]Everything is on-device. Rendering happens locally through WebKit. Nothing about your documents is ever uploaded or recorded.
  • [keep]Yours to keep. One-time purchase, no subscription. Updates come as a new download when there's something worth shipping.
Questions

Good to know.

How do I preview a Markdown file in Finder?

Select any .md file and press the Space bar. Featherdown's Quick Look extension renders the Markdown right in the preview panel — headings, tables, task lists, highlighted code — with an Open with Featherdown button in the corner if you want the full app.

Is this a good alternative to Marked 2 or Typora?

If you mostly read Markdown, yes. Featherdown opens files already rendered, adds a Finder Quick Look preview that most editors don't have, follows Obsidian wikilinks, and is a 1.9 MB download instead of tens or hundreds of megabytes. It's $12.99 one-time — a dollar under Marked 2, without the Chromium payload of the Electron editors.

Does it work with Obsidian vaults?

Yes. It renders [[wikilinks]] and follows them in place, collapses YAML frontmatter into a tidy block, and resolves vault-relative images by walking up parent folders — so a note that points at an images/ folder at the vault root still shows its pictures.

Can I edit, or is it only a viewer?

Both. It's viewer-first, but ⌘E flips to a monospaced source editor, and ⌘3 gives you a live split view. There's smart list continuation, ⌘B / ⌘I formatting, a table of contents, find, and export to HTML or PDF.

How big is it, really?

The download is a 1.9 MB disk image; the installed app is about 3.9 MB. It uses the Mac's own WebKit to render, so there's no bundled browser engine. Universal binary for Apple Silicon and Intel.

Why isn't it on the Mac App Store?

Featherdown is sold directly so it can ship a Quick Look extension that reads sibling image files next to your notes — handy for vaults, but outside what App Store sandboxing allows. Buying on Gumroad is what lets it work that way.

One-time purchase or subscription?

One-time. $12.99, yours to keep, no subscription and no account.

What are the system requirements?

macOS 14 (Sonoma) or later. Universal binary, so it runs natively on both Apple Silicon and Intel Macs.

I need help or found a bug.

Email martini-doubler7g@icloud.com and I'll get back to you.

Get it

A lighter way to read your notes.

Rendered on open, one tap of Space in Finder, fluent in your vault — in under two megabytes. $12.99 once, signed, notarized, universal.

macOS 14+ · universal · v1.0.0 · a 1.9 MB download