Gemini Mermaid Renderer

Tracking since Apr 1, 2026.

Changelog

• Jun 1, 2026
  description

  "Gemini Mermaid Renderer" is a Chrome extension that instantly converts Mermaid text generated by Gemini into visual diagrams right on the spot.
  
  【Visualize AI responses instantly 📊】
  No more hassle of copying and pasting Mermaid code from Gemini into other tools—view your diagrams directly within the chat interface.
  Convert complex textual information into easy-to-understand visuals, including flowcharts, sequence diagrams, system architecture diagrams, Gantt charts, and more.
  
  【Key Features】
  ・🔍 Zoom Function: Easily inspect even complex or massive system diagrams in detail with zoom-in and zoom-out capabilities.
  ・💾 Save as Image: Download your generated diagrams as PNG images with a single click. Perfect for pasting directly into presentation slides or documents.
  ・🌓 Dark Mode Support: Background and text colors automatically optimize to match your Gemini theme, maintaining a beautiful and readable design.
  
  【How to Use】
  1. Install this extension in Chrome.
  2. Ask Gemini to "Create a diagram of [topic] using Mermaid."
  3. Click the pink "Mermaid" button in the top-right corner of the generated code block to render the diagram!
  
  【Setup Tip】
  Follow the guide displayed upon your first installation to set up custom instructions. This will allow Gemini to start outputting in Mermaid notation automatically, making your workflow even smoother.

  Updated to Ver 2.0.0!
  Now supports the new Gemini UI.
  
  "Gemini Mermaid Renderer" is a Chrome extension that instantly converts text generated by Gemini into visual diagrams using the Mermaid syntax.
  
  [Instantly Visualize AI Responses 📊]
  Skip the hassle of copying and pasting Mermaid code into other tools. View it directly as a diagram right on the chat screen.
  It transforms complex text information into easy-to-understand charts, including flowcharts, sequence diagrams, system architecture diagrams, and Gantt charts.
  
  [Convenient Features]
  • 🔍 Zoom Function: Easily inspect intricate and large system diagrams with zoom in/out controls for crystal-clear detail.
  • 💾 Save as Image: Download generated diagrams as PNG files with a single click. Paste them directly into presentations or documents for immediate use.
  • 🌓 Dark Mode Support: Diagram background and text colors automatically adapt to Gemini's theme, maintaining a clean and visually appealing design.
  
  [How to Use]
  1. Install this extension in Chrome.
  2. Tell Gemini to "Create a diagram of XX using Mermaid."
  3. Click the pink "Mermaid" button at the top right of the generated code block to render the diagram!
  
  [Settings Tip]
  Follow the on-screen guide during initial setup to configure custom instructions. This prompts Gemini to automatically output in Mermaid syntax, significantly boosting convenience.

• Apr 19, 2026
  description

  Adds a 'Mermaid' button to code blocks in Gemini to render Mermaid diagrams.

  "Gemini Mermaid Renderer" is a Chrome extension that instantly converts Mermaid text generated by Gemini into visual diagrams right on the spot.
  
  【Visualize AI responses instantly 📊】
  No more hassle of copying and pasting Mermaid code from Gemini into other tools—view your diagrams directly within the chat interface.
  Convert complex textual information into easy-to-understand visuals, including flowcharts, sequence diagrams, system architecture diagrams, Gantt charts, and more.
  
  【Key Features】
  ・🔍 Zoom Function: Easily inspect even complex or massive system diagrams in detail with zoom-in and zoom-out capabilities.
  ・💾 Save as Image: Download your generated diagrams as PNG images with a single click. Perfect for pasting directly into presentation slides or documents.
  ・🌓 Dark Mode Support: Background and text colors automatically optimize to match your Gemini theme, maintaining a beautiful and readable design.
  
  【How to Use】
  1. Install this extension in Chrome.
  2. Ask Gemini to "Create a diagram of [topic] using Mermaid."
  3. Click the pink "Mermaid" button in the top-right corner of the generated code block to render the diagram!
  
  【Setup Tip】
  Follow the guide displayed upon your first installation to set up custom instructions. This will allow Gemini to start outputting in Mermaid notation automatically, making your workflow even smoother.

• Apr 19, 2026
  short_description

  Adds a 'Mermaid' button to code blocks in Gemini to render Mermaid diagrams.

  Adds a "Mermaid" button to Gemini code blocks to render Mermaid diagrams.

Permissions & access

Permissions

storage

Host access

https://gemini.google.com/*

Screenshots

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