中文说明

MD Viewer is a lightweight desktop app for reading and working with Markdown documents.

The idea is simple: VS Code is excellent, but it can feel too heavy when you only want to open a folder and read the Markdown files inside it. MD Viewer keeps the parts that make editor-style reading useful, such as a file explorer, tabs, document outlines, themes, and quick navigation, while keeping the interface focused on the document.

This project was inspired by markdown-viewer-extension. That project provides a strong Markdown preview and theme experience, and it helped shape the direction of MD Viewer as a standalone desktop reader.

MD Viewer is not intended to replace the original extension. It is a focused desktop app built around my own reading workflow: when the goal is reading Markdown, the app should feel lighter, more direct, and closer to a dedicated document viewer.

• Open Markdown files by drag and drop.
• Open folders and browse Markdown files in a VS Code-like explorer.
• Keep multiple documents open in tabs.
• Use a different preview theme per tab.
• Navigate long documents with a nested document outline.
• Edit Markdown with preview, edit, and split view modes.
• Use editing assists for lists, task lists, quotes, code fences, inline formatting, links, and paired delimiters.
• Render Mermaid diagrams from fenced mermaid code blocks.
• Adjust theme typography for preview and DOCX export.
• Export to HTML, DOCX, or print / PDF.
• Copy rendered Markdown content with cleaner formatting.
• Copy images from the rendered preview.
• Resize the sidebar and document outline panels.
• Reveal files or folders in Finder, File Explorer, or the system file manager.
• Switch the interface between Chinese and English.
• Check for app updates from Settings.

The next version explores an in-app Agent panel that stays beside the Markdown document. The goal is to make writing assistance feel like part of the reading and editing workspace: summarize the current document, adjust tone, continue a draft, or save the result without moving text into a separate chat window.

This direction keeps the scope close to document-centered Markdown workflows: reading, drafting, rewriting, summarizing, and saving.

HTML mockup: Agent Chat Concept.

Install dependencies:

pnpm install

Run the Tauri development app:

pnpm tauri dev

Build a local app package:

pnpm tauri build

• Tauri 2
• Vite
• Vanilla JavaScript
• Markdown-it
• Mermaid

Thanks to the author of markdown-viewer-extension. MD Viewer was influenced by its theme experience and Markdown reading direction.

• LinuxDO