Show HN: Mermaid Chart VS Code Plugin: Mermaid.js Diagrams in Visual Studio Code

Mermaid Chart VS Code Plugin: Create and Edit Mermaid.js Diagrams in Visual Studio Code 21 March 2025 • 5 mins The Mermaid Chart VS Code Plugin is a powerful developer diagramming tool that brings Mermaid.js diagramming directly into your Visual Studio Code environment. Whether you’re visualizing software architecture, documenting API flows, fixing bad documentation, or managing flowcharts and sequence diagrams, this plugin integrates seamlessly into your workflow. Key Features of the Mermaid Chart VS Code Plugin for Diagramming Edit Mermaid.js Diagrams in VS Code Without an Account No sign-ups, no interruptions. You can open and edit .mmd files instantly using the built-in Mermaid Chart Editor, no account required. This is ideal for quick diagram updates and low-friction workflows. Automatic File Recognition and Mermaid.js Syntax Highlighting The plugin recognizes .mmd files automatically in the VS Code file explorer. You also get native Mermaid.js syntax highlighting, making y ... Read full article.