SSEM Markdown Editor icon

SSEM Markdown Editor

by levelupbank

v1.0.2 Updated Feb 7, 2026 2.43MiB
CWS
23
Users
★ 5.00
1 reviews
#42100
of 88.2K
developer
#3556 of 7.7K

Description

**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)
SSEM Markdown Editor screenshot 1SSEM Markdown Editor screenshot 2SSEM Markdown Editor screenshot 3SSEM Markdown Editor screenshot 4SSEM Markdown Editor screenshot 5

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Permissions (2)

Permissions

activeTab Can access the current tab when you click the extension storage Can store data locally in your browser

Details

Version 1.0.2
Updated Feb 7, 2026
Size 2.43MiB
First Seen Mar 26, 2026