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Mermaid diagram syntax converted to ASCII art with new tool

By PulseAugur Editorial · [2 sources] ·

Simon Willison has developed a tool called mermaid-ascii that converts Mermaid diagram syntax into ASCII and Unicode art. This tool, built using a Go library compiled to WebAssembly, supports various diagram features like labeled edges, subgraphs, and color definitions. Willison also explored an alternative Go library by AlexanderGrooff, which he had Claude Fable-5 compile to WebAssembly for comparison, noting its additional support for colors. AI

IMPACT This tool offers a novel way to visualize diagrams, potentially aiding developers and designers in creating text-based representations.

RANK_REASON The item describes a new software tool for converting diagrams to ASCII art.

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AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

Mermaid diagram syntax converted to ASCII art with new tool

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The item describes a new software tool for converting diagrams to ASCII art.
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COVERAGE [2]

  1. Simon Willison TIER_1 Română(RO) ·

    Mermaid to ASCII art (mermaid-ascii)

    <p><strong>Tool:</strong> <a href="https://tools.simonwillison.net/mermaid-ascii">Mermaid to ASCII art (mermaid-ascii)</a></p> <p>After building the <a href="https://simonwillison.net/2026/Jul/16/grok-mermaid/">Mermaid to ASCII tool based on Grok Build's Rust code</a> I learned t…

  2. Mastodon — mastodon.social TIER_1 English(EN) · [email protected] ·

    Mermaid to ASCII art (mermaid-ascii) https://simonwillison.net/2026/Jul/16/mermaid-ascii/#atom-everything # Tools # Python # AI

    Mermaid to ASCII art (mermaid-ascii) https://simonwillison.net/2026/Jul/16/mermaid-ascii/#atom-everything # Tools # Python # AI

    LINKS simonwillison.net/…/mermaid-ascii

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