mermaid

A web tool that converts Mermaid diagram syntax into ASCII and Unicode box-drawing art, rendered entirely in the browser using a Go library compiled to WebAssembly. Supports flowcharts, sequence diagrams, colors, and customizable output.

Simon Willison built a browser-based tool using WebAssembly to convert Mermaid diagrams into Unicode box art, inspired by an open-sourced Rust component from the Grok CLI coding agent.

A free, no-signup Mermaid diagram editor with live preview, instant SVG/PNG export, and shareable links that run entirely in the browser. Optionally connects to GitHub to auto-generate architecture diagrams from source code.

Grok Build v0.2.51 adds Mermaid diagram enhancements, a /code-review command, and bug fixes. Also notes v0.2.45 with Mermaid image rendering.

Merman is a headless Rust implementation of Mermaid.js that parses, lays out, and renders diagrams (SVG, raster, ASCII) without a browser or JavaScript runtime, targeting parity with Mermaid.js v11.15.0.

Adds support for rendering Mermaid diagrams in chat and an interactive preview within the llama.cpp web UI.

beautiful-mermaid is an open-source tool implemented in pure TypeScript that renders Mermaid diagrams as beautiful SVGs or terminal-friendly ASCII art. It supports 15 built-in themes and has zero DOM dependencies, making it suitable for use in AI-assisted programming.