Tool: Mermaid to Unicode box art (grok-mermaid)

Tool

Mermaid to Unicode box art (grok-mermaid)

— Convert Mermaid diagram syntax into terminal-style Unicode box-drawing art rendered entirely in your browser using WebAssembly. The tool supports flowcharts, sequence, state, class, and ER diagrams, with other diagram types falling back to a framed source listing. You can adjust the output width, copy the rendered diagram as text, or generate a shareable link to your diagram.

While exploring the codebase for the newly open-sourced Grok CLI coding agent I came across xai-grok-markdown/src/mermaid.rs, a "self-contained terminal renderer for Mermaid diagrams" written in Rust.

I figured it would be fun to try that out in a browser via WebAssembly. Here's the prompt I ran in Claude Code for web (Fable 5), and this is what the resulting tool looks like: