https://chromewebstore.google.com/detail/ssem-markdown-editor/ldngppooocgjgpollemajdcalofmdamg

v1.0.2 Update

• Fixed Mermaid diagram rendering
• Added quadrantChart, mindmap support

SSEM Markdown Editor is a powerful Chrome extension for viewing and editing Markdown documents directly in your browser.

Features#

View Modes#

• Editor Mode: Edit Markdown source code with syntax highlighting and line numbers
• Split Mode: Side-by-side editor and preview for real-time editing
• Viewer Mode: Clean, beautifully rendered Markdown document view

Editor Features#

• Line numbers
• Syntax highlighting
• Real-time preview (in Split mode)
• Download files with Ctrl/Cmd + S

Document Features#

• Supports file://, http://, https:// protocols
• Supports .md, .mkd, .mdx, .markdown extensions
• Rich syntax plugins: emoji, math equations, flowcharts, Gantt charts, checkboxes, and more
• Light/Dark themes with code highlighting
• Auto-refresh on file changes
• Table of Contents (TOC) sidebar

Keyboard Shortcuts#

• Ctrl/Cmd + S: Download file
• Ctrl/Cmd + E: Toggle view mode
• Alt + Shift + B: Toggle sidebar
• Alt + Shift + C: Toggle centered alignment
• Alt + Shift + R: Toggle auto-refresh
• Alt + Shift + T: Toggle theme

Perfect for developers, writers, and anyone who works with Markdown files!

Built by SSEM DEV (https://ssem.ai)
Based on md-reader by Bener (https://github.com/md-reader/md-reader)