Mermaid Previewer Sidebar

by redreamzishao · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 18 Oct 2026

Instantly preview Mermaid diagrams in a Chrome sidebar. Ideal for ChatGPT, markdown notes, and flowchart editing.

Users

152

+8 in 30 days

Rating

3.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#72K

#60K among extensions

Version

0.0.1

updated 11 Jun 2025

Users

monthly, 16 months

Latest, 18 Oct 2026: 152 usersMove the mouse over the chart for any month

Ratings count

monthly, 16 months

Latest, 18 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Mermaid Previewer Sidebar

This Chrome extension enables real-time preview of Mermaid.js diagrams in a persistent sidebar, making diagram creation seamless and efficient. Perfect for AI chat workflows (ChatGPT, Gemini, Claude), Markdown editing, technical documentation, and flowchart design. 🟢 Key Features: Real-time rendering of Mermaid diagrams as you type Multiple themes including hand-drawn/sketch styles for visual variety Easy download of diagrams as PNG or SVG files Persistent sidebar that works alongside your browser tabs One-click copy & paste support when chatting with AI assistants Fully compatible with Markdown and popular note-taking apps 🚀 Enhance your productivity by instantly visualizing flowcharts, sequence diagrams, and graphs without switching contexts. Ideal for developers, writers, and anyone who uses Mermaid for quick diagramming.