Free CSS Conic Gradient Pie Chart Generator

Generate custom, responsive CSS conic-gradient pie charts instantly. Easily define slice percentages, colors, and border styles for your next web project.

Built by@Akhenaten

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Technical Specification: CSS Conic Gradient Pie Chart Generator

Overview

A high-performance, single-file browser utility designed for web developers to visually configure and generate CSS conic-gradient code for pie and donut charts. The application focuses on a "SaaS" aesthetic, providing an intuitive, drag-and-drop-free interface that outputs clean, production-ready CSS.

Core Features

  • Dynamic Slice Management: Users can add or remove an unlimited number of slices dynamically. Each slice allows input for percentage values and color selection.
  • Live Preview Engine: Real-time rendering of the chart in a dedicated preview pane using the actual CSS properties being generated.
  • Donut/Pie Toggle: A setting to control border-radius and inner circle masking, allowing for instant switching between solid pie charts and donut charts.
  • One-Click CSS Export: A 'Copy to Clipboard' feature that captures the complete conic-gradient CSS property, including fallbacks.
  • Responsive Design: The layout adapts from a single-column stack on mobile devices to a side-by-side dashboard layout on desktops.

UI/UX Design

  • Layout:
    • Header: Clean, minimal title and short instruction.
    • Main Area: Split-pane view. Left sidebar contains controls (slice inputs, color pickers). Right/Main area displays the live chart preview and the code output block.
    • Inputs: Use native HTML5 color inputs for seamless performance. Number inputs for percentage tracking.
  • Color Palette (Light Mode Only):
    • Background: #f8fafc (Slate 50)
    • Cards: #ffffff (White) with soft drop shadows (shadow-sm or shadow-md)
    • Primary Buttons: #4f46e5 (Indigo 600)
    • Text: #1e293b (Slate 800)
    • Borders: #e2e8f0 (Slate 200)
  • Animations/Transitions:
    • Smooth fade-ins when adding new slice rows.
    • Instant transition for the chart preview when input values change.
    • Subtle hover states on buttons for an interactive feel.

Developer Directives & Constraints

  • Constraint Compliance:
    • NO LOCALSTORAGE: All state must be handled in memory via JavaScript objects. Do not use localStorage or sessionStorage.
    • SINGLE FILE: Bundle all CSS and JS within the single HTML file. Use CDN links for Tailwind CSS and Lucide Icons.
    • SANDBOX COMPATIBILITY: No alert(), prompt(), or confirm(). Use custom DOM-based modals for any notifications.
    • SECURE LINKS: All external links (if any) must include target="_blank" and rel="noopener noreferrer".
  • Technical Implementation:
    • Use a clean State object in JS to track slice data (Array of { color: string, value: number }).
    • Re-render the chart background string dynamically whenever the State changes.
    • Use navigator.clipboard.writeText() for the code output feature.

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Files being used

index.html
9.3 KB
#css pie chart generator#conic-gradient generator#web development tool#css data visualization#custom pie chart code

Frequently Asked Questions

Everything you need to know about using this application.

How do I implement the generated CSS code?

To use the generated code, simply copy the provided CSS snippet and paste it into the style rule for your target HTML element. The tool utilizes the modern CSS 'conic-gradient' property, which is highly performant and does not require external images or heavy JavaScript charting libraries. Ensure the element has defined dimensions (width and height) and, if you are creating a donut chart, apply a border-radius of 50% and a mask or inner white circle to achieve the desired hollow effect. This approach is ideal for lightweight, responsive UI components.

Does this tool work in all modern browsers?

The CSS 'conic-gradient' property is supported by all major modern browsers, including Chrome, Edge, Firefox, and Safari. By using this native CSS approach, you ensure your charts render instantly without the overhead of SVG or Canvas rendering, making it perfect for rapid data visualization. For legacy browser support, we recommend using a fallback background color or image, though standard adoption for conic-gradient is currently very high across the web development ecosystem.

Can I create donut-style charts with this tool?

Yes, our generator includes options to adjust the design to function as a donut chart. You can adjust the border-radius settings and the inner 'hole' size to transform a standard pie chart into a professional-looking donut visualization. These adjustments are reflected in the live preview and the exported CSS code, giving you full control over the visual aesthetics of your chart directly within the browser interface.

Is my data saved if I refresh the page?

This application operates entirely in-memory for security and performance reasons. Data is not saved to cookies, localStorage, or any external database; once you refresh the browser tab, the current configuration will be reset to the default state. If you need to keep a specific chart design, we recommend copying the generated code snippet into your code editor or project files. This ensures your configurations remain persistent and secure within your own development workflow.

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