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mockup-sandbox

Create and preview live web UI components on a canvas using Vite dev servers.

1|Updated Aug 24, 2025
Search Tags:#prototyping#frontend development#ui design#web components#live preview#canvas integration
One-click install
npx skills add https://github.com/Pixoraft/KirpalSecure-site --skill mockup-sandbox-pixoraft
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mockup-sandbox
Source: https://github.com/Pixoraft/KirpalSecure-site/tree/main/.local/skills/mockup-sandbox
Command: npx skills add https://github.com/Pixoraft/KirpalSecure-site --skill mockup-sandbox-pixoraft

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill allows you to create, preview, and iterate on live web UI components directly on the canvas, offering a dynamic alternative to static shapes.

Core Features & Use Cases

  • Live Component Rendering: Display interactive web content (React, HTML, CSS) on the canvas via iframes.
  • Prototyping & Design Iteration: Design, mockup, and compare multiple design variants side-by-side.
  • Responsive Previews: Show how components adapt to different screen sizes (mobile, tablet, desktop).
  • Component State Visualization: Preview loading, error, or empty states.
  • Theme Comparison: Easily compare dark vs. light modes or different color schemes.
  • Use Case: You need to design a new pricing card component for a website. Activate this Skill to create several design variations (e.g., minimal, bold, gradient) and display them next to each other on the canvas for easy comparison and selection.

Quick Start

Use the mockup-sandbox skill to create a pricing card component on the canvas.

Frequently Asked Questions about mockup-sandbox

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I preview live web UI components on a canvas instead of static shapes?▼

You can preview live web UI components on a canvas by running a Vite dev server and embedding isolated component preview URLs in iframes. This allows interactive React, HTML, and CSS content to render dynamically directly on your workspace.

Can I compare multiple UI design variants side-by-side during prototyping?▼

Yes, you can compare multiple UI design variants side-by-side during prototyping by rendering different component versions simultaneously on the canvas. This makes it easy to evaluate minimal, bold, or gradient styling options next to each other.

How do I show responsive previews for mobile, tablet, and desktop screen sizes?▼

Responsive previews for mobile, tablet, and desktop screen sizes are shown by rendering the live web content in iframes configured for different viewport dimensions. This visualizes how your UI components adapt across various device widths.

Does this Vite dev server sandbox support previewing loading and error component states?▼

Yes, the Vite dev server sandbox supports previewing loading, error, and empty component states. It renders these specific UI conditions live on the canvas so you can validate component behavior under various data scenarios.

What is the best way to compare dark and light theme variants for web components?▼

The best way to compare dark and light theme variants is to render the web components live on the canvas with different color schemes applied. You can display themed versions next to each other for immediate visual comparison.

Are there any limitations when using iframe embedding for live component rendering?▼

Iframe embedding for live component rendering relies on isolated preview URLs from a Vite dev server, meaning components must be self-contained to display correctly. Complex state dependencies across multiple components may require careful isolation to preview properly.

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