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Katsuragi review

Free#21 of 33 in AI Wireframe Generators

A developer-focused wireframing CLI for text specs, exports, previews, and webpage conversion.

7.3/10Editor score
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Katsuragi7.3 Visit Katsuragi

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Katsuragi is an open-source command-line wireframe generator from En-Links LLC. It converts text-based .kui specifications into SVG, PNG, or HTML wireframes, giving developers, engineers working with AI coding assistants, and teams managing UI specifications in version control a structured way to describe interfaces. Its component set covers text, boxes, buttons, inputs, and image placeholders, while reusable layout syntax, grid systems, configurable ratios, gaps, padding, and built-in themes support more than a basic sketching workflow.

Its strongest fit is an AI-assisted, text-first process. Katsuragi is compatible with Claude Code, Cursor, Aider, and other LLM CLI tools, so interface definitions can sit alongside code and be reviewed as text. A browser live preview with auto-reload provides visual feedback while specifications change. The tool also converts static webpages into .kui wireframes and supports batch conversion, which broadens its value for teams documenting existing pages or processing multiple wireframes. Installation through npm or direct execution with npx keeps the workflow centered on developer tooling.

Katsuragi is most suitable for teams that prefer declarative UI descriptions, repository-based collaboration, and generated outputs over a visual drag-and-drop editor. Its export formats and webpage conversion make it useful for documentation, early layout exploration, and AI-assisted implementation planning. It is less suitable for product teams that need interactive prototypes, rich behavioral modeling, or a primarily visual design environment. Choose it when text-based specifications and LLM CLI compatibility are central requirements; consider another category tool when interaction design or broader platform coverage is the priority.

Katsuragi pros and cons

  • Where it wins
    • Git-diffable .kui specifications support version-controlled UI work.
    • Exports wireframes to SVG, PNG, and HTML.
    • Works with Claude Code, Cursor, and Aider workflows.
  • Where it doesn't
    • Focused on static wireframes rather than interactive prototypes.
    • Requires comfort with text-based specifications and CLI workflows.
    • Platform coverage beyond documented LLM CLI tools is limited.

Katsuragi fact sheet, pricing and score →

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