https://pretty.fish/
Article
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Web-based Mermaid diagram editor with live preview and infinite canvas
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Supports multi-page projects and grouping of diagrams
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Offers better themes and drag-arrange capabilities vs. standard Mermaid tools
Discussion
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Commenters found UX rough: pan broken on trackpad, resize handles incomplete
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Several asked for true visual/click-to-edit diagramming, not just a fancier text editor
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d2lang.com suggested as a superior Mermaid alternative with nicer visuals
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Name and domain universally praised as genuinely clever
Discuss on HN
