What problem does it solve?
Provides a distraction-free, book-like HTTP viewer so users can read long-form markdown (documentation, plans, novels, reports) in the browser without manual HTML authoring or noisy UI chrome. It removes friction when previewing directories of markdown, resolving images, and navigating plan-style content on local machines or across a LAN.
Core Features & Use Cases
- Background HTTP server that serves markdown files as a styled reader and directories as a clickable browser.
- Client-side mermaid diagram rendering, syntax highlighting, theme toggle (light/dark), keyboard shortcuts, mobile FAB navigation, and focused reader UI with progress bar.
- Safe file handling with allowed directory validation, /file/ image serving, port auto-selection, PID management for background instances, and back/next plan navigation for plan-based repos.
- Use case: quickly preview a project's plan directory or a single long-form README with rich diagrams and readable typography on any device.
Quick Start
Start the server and open a markdown file by running the server script with the file path as the file argument.