A fast, native Markdown (.md) viewer for Windows.
ReadMark opens Markdown files and renders them - with tabs, a heading sidebar, find, print. It's built natively for Windows on .NET 8 and WebView2.
This repository is the public home for ReadMark downloads, issue tracking, and documentation. ReadMark is proprietary software — the application source code is not distributed here (see License).
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- Opens
.mdfiles from Explorer, "Open with", drag & drop, or the command line. - Renders GitHub Flavored Markdown (tables, task lists, footnotes, alerts, emoji, …) or strict CommonMark — switchable at runtime.
- Tabs for multiple documents, with a collapsible heading sidebar for navigation.
- Find in document, Go to line, zoom, and full screen.
- Print (and Save as PDF) through a custom print dialog with preview.
- Light / Dark / System appearance, plus Modern and Classic chrome themes.
- Remembers recent files and, optionally, restores your open tabs.
- Private by design: no telemetry, no cloud, no account.
Get the latest installer from the Releases page or from readmarkviewer.com.
- Download the ReadMark
.msiinstaller. - Run it and follow the prompts.
- Launch ReadMark, or right-click a
.mdfile → Open with → ReadMark.
For the full walkthrough, see Getting Started.
User documentation lives in the docs directory:
- Getting Started — download ReadMark and open your first document.
- User Guide — every feature, view, and keyboard shortcut.
- Troubleshooting — fix common install, rendering, and printing issues.
Found a bug or have an idea? Open an issue from the issue forms:
When reporting a bug, please include your ReadMark version (Help → About) and your Windows version.
ReadMark is free. If it's useful to you, you can support its development on the donate page. Donations are entirely voluntary and help keep the project maintained.