md-viewer-py 1.0.0

Drop-in single-file Markdown viewer for any folder

md-viewer-py

Drop-in Markdown viewer for any folder — installable via pip.

Zero dependencies. Install once, use everywhere as mdview.

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Install

pip install md-viewer

Or with pipx (recommended for CLI tools):

pipx install md-viewer

Or install directly from source:

pip install .

Then run from any directory:

mdview                        # serve current directory on port 8080
mdview 3000                   # custom port
mdview /path/to/docs          # custom directory
mdview /path/to/docs 3000     # both

Or run as a Python module without installing:

python -m md_viewer

Features

• Zero dependencies — Python standard library only, nothing to install
• pip/pipx installable — install once, use anywhere as mdview
• Dark theme UI — polished dark interface, easy on the eyes
• File tree sidebar — folder navigation with collapsible directories
• Full-text search — search across all Markdown files instantly
• Table of contents — auto-generated with scroll spy and collapsible groups
• Collapsible sections — click any heading to collapse/expand its content
• .gitignore support — respects ignore patterns, skips .git, node_modules, etc.
• Keyboard shortcuts — arrow keys to navigate, / to search
• Reading progress bar — visual indicator of scroll position
• Mobile responsive — works on small screens with hamburger menu
• Print-friendly — clean print stylesheet for hard copies
• Custom port and directory — point it at any folder, pick any port
• Live content refresh — file list and content auto-refresh as files change

Quick Start

pip install md-viewer
mdview

A browser tab opens automatically at http://localhost:8080.

Examples

• Mermaid Diagrams — flowcharts, sequence diagrams, gantt charts, and more

Keyboard Shortcuts

Key	Action
/ or Ctrl+K	Focus search
← ↑	Previous file
→ ↓	Next file

How It Works

md-viewer is a pip-installable HTTP server built on Python's http.server. It scans the directory for .md files, serves a single-page dark-themed UI, and renders Markdown client-side using marked.js from a CDN. No build step, no config files, no virtual environments beyond the install itself.

Alternative: Copy and Run

No install needed — just drop the wrapper into any folder:

python3 md-viewer.py

Contributing

Contributions are welcome! See CONTRIBUTING.md for guidelines.

If you'd like to help but aren't sure where to start, here are some ideas:

• Light theme / theme switcher
• Syntax highlighting for code blocks (highlight.js)
• Mermaid diagram support
• Live reload on file changes
• Export to PDF or static HTML

Feel free to open an issue to discuss ideas before starting work.

License

MIT