PeekMark · Coming Soon

Markdown preview that feels native to Mac.

PeekMark is a local-first Markdown previewer with Quick Look, app windows, Mermaid diagrams, Math/LaTeX, wikilinks, and a zero-remote rendering contract.

Ask for updates View repo status

README.md

frontmattermermaidmath

Local notes, rendered cleanly.

Open Markdown from Finder, preview it with Space, follow local anchors and wikilinks, and keep every render request on your Mac.

graph TD
  Idea --> Draft
  Draft --> Preview
  Preview --> Ship

CommunityAGPL core renderer and Quick Look baseline.

LocalNo remote rendering requests for preview content.

NativeSwift app, Finder Quick Look, macOS-first feel.

Pro laterVault workflows, search, backlinks, export, and themes.

Community rendering is not the upsell.

Quick Look

Render `.md` files from Finder without opening a full editor.

Rich Markdown

GFM, syntax highlighting, frontmatter chips, TOC, anchors, wikilinks, Mermaid, and Math/LaTeX.

Offline first

Bundled preview assets and strict local navigation keep your notes private by default.

Community

Free and open source under AGPL-3.0.

Quick Look Markdown preview
App preview and editing surface
Mermaid and Math/LaTeX rendering
Local anchors and wikilinks

Pro

Paid workflow extensions planned after the public baseline is stable.

Workspace and vault navigation
Backlinks, graph view, and advanced search
PDF/DOCX/HTML export
Custom themes and capture workflows

Download

Download coming soon.

The public download will appear here after the app is signed, notarized, stapled, and wired to Sparkle updates. Until then, there is no unofficial binary to install.

Notify me GitHub status

Community repoPrivate while release assets are prepared

Signed appDeveloper ID signing pending

NotarizationNot public until Apple notarization passes

UpdatesSparkle appcast planned at peekmark.quartz.ink

Open core, with the useful preview baseline included.

Capability	Community	Pro
License	AGPL-3.0 source release when ready	Proprietary extensions in official builds
Markdown preview	Quick Look, app preview, GFM, syntax highlighting	Uses the same shared renderer
Rich rendering	Frontmatter, TOC, anchors, wikilinks, Mermaid, Math/LaTeX	Not gated behind Pro
Workspaces	Open individual Markdown files	Vault navigation, backlinks, graph view, advanced search
Output	Native preview surfaces	PDF, DOCX, HTML export and custom themes

Privacy promise for Markdown files.

No content upload

PeekMark is designed so Markdown rendering happens locally on your Mac, not on a hosted rendering service.

No remote renderer

Preview assets are bundled with the app so Mermaid, Math/LaTeX, highlighting, and styles do not require CDN calls.

Clear release status

The GitHub repository remains private until signing, notarization, download hosting, and release documentation are ready.

Release status

Signed downloads are not public yet.

PeekMark is being prepared privately while signing, notarization, Sparkle updates, and release hosting are finalized.

Get notified