Mermaid to Unicode box art

Type Mermaid diagram source below and it is rendered as terminal-style Unicode box-drawing art — entirely in your browser, by the actual Rust renderer from xai-org/grok-build (the Grok CLI) compiled to WebAssembly. Flowcharts, sequence, state, class and ER diagrams are supported; other diagram types fall back to a framed source listing. Rust source, license and build script: grok-mermaid/.

Max width:

The renderer is mermaid.rs from xai-org/grok-build (crates/codegen/xai-grok-markdown/src/mermaid.rs), copyright 2023-2026 SpaceXAI, used under the Apache License 2.0, compiled unmodified (apart from two import lines) to a 190 KB WebAssembly module with no JavaScript reimplementation of any layout logic.