Light MD Viewer

View and edit Markdown files directly in Chrome with syntax highlighting, mermaid diagrams, and split editor.

A lightweight Chrome extension that renders Markdown files directly in the browser with syntax highlighting, mermaid diagrams, and a built-in editor. Features View mode — clean, readable rendering of .md files with Material Design styling Edit mode — full CodeMirror 6 editor with GFM syntax highlighting and line numbers Split mode — side-by-side editor and live preview Code highlighting — automatic syntax detection for fenced code blocks via highlight.js Mermaid diagrams — flowcharts, sequence diagrams, and more rendered inline Export options — download edited files, copy raw markdown or rendered HTML to clipboard Fully offline — all libraries are bundled locally, no network requests Attention: You have to enable "Allow access to file URLs" in extension's Details for the extension to function properly.