Markdown Local Preview

Markdown Local Preview is a Chrome extension for reading local Markdown/text files with a clean two-pane interface.

Core features:

Open a single file or an entire local folder
Sidebar tabs for file list and document TOC
Markdown preview with Mermaid diagram rendering
Syntax highlighting (Monokai) for common languages
Relative link handling between local Markdown files
Optional folder authorization to browse sibling Markdown/text files
Chinese/English UI toggle
This extension is designed for local documentation workflows and focuses on file:// content only.

Permissions usage:

file:///* is used to detect local Markdown files and redirect them to the extension viewer.
tabs is used only to open/switch the extension preview tab.
No account is required.
No forced payment, no paywall for core features, no hidden link injection.