Light MD Viewer by Hayyarden
View and edit Markdown files directly in your browser with syntax highlighting, mermaid diagrams, and split editor.
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About this extension
A lightweight 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
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
Rated 0 by 0 reviewers
Permissions and data
Required permissions:
- Download files and read and modify the browser’s download history
Optional permissions:
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Version
- 1.0.1
- Size
- 1.37 MB
- Last updated
- 6 days ago (May 1, 2026)
- Related Categories
- License
- MIT License
- Version History
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