Create custom Soft UI designs with this free online CSS Neumorphism generator. Instantly preview shadows, light angles, and box styles for web development.
AI Generation Prompt
Technical Specification: Free Online CSS Neumorphism Generator
Overview
A clean, professional, and responsive single-page application that allows developers and designers to generate valid CSS for Neumorphic (Soft UI) elements. The tool focuses on ease of use, providing real-time visual feedback for adjustments to shadows, corner radii, and background colors.
Core Features
- Real-Time Preview Canvas: A central preview area displaying a live element that updates instantly as parameters change.
- Shadow Control Suite:
- Distance: Adjustable offset for the shadow layers.
- Intensity: Slider to control shadow opacity.
- Blur Radius: Adjustable Gaussian blur for shadow softness.
- Light Angle: Control the direction of the light source (e.g., top-left, bottom-right).
- Background Color: Color picker to match the app background to the project theme.
- One-Click Code Export: A dedicated code box with a "Copy to Clipboard" feature for seamless CSS integration.
- Shape Toggling: Switch between square, rounded, and circular element shapes.
User Interface (UI) Layout
- Header: Simple, clear title indicating tool functionality.
- Main Content Area: A two-column responsive layout:
- Left Column (Configuration): Contains sliders for Distance, Blur, Intensity, and input fields for hex colors, plus radio buttons for shape selection.
- Right Column (Preview & Output): Top section displays the live element. Bottom section displays the generated CSS in a high-contrast code block with a 'Copy' button.
- Responsive Design: On mobile devices, the left column stacks above the right column to maintain touch-friendly accessibility.
Color Palette & Aesthetics
- Design Philosophy: Strict adherence to a clean, bright, and professional Light Mode.
- Primary Background: #f0f2f5 (A soft, neutral light grey).
- Accent Colors: #3b82f6 (a modern, professional blue) for buttons and active states.
- Typography: Sans-serif, human-readable fonts (e.g., Inter or System UI font stack).
- Transitions: All UI interactions (hover effects on buttons, input changes) will feature smooth 0.2s transitions for a "SaaS-grade" feel.
Technical Implementation Constraints
- Architecture: The entire application must be contained in a single
index.htmlfile. - Sandboxed Compatibility:
- No Storage: No use of
localStorage,sessionStorage, orcookiespermitted. All application states must exist in volatile memory. - Safe UI: Do not use
alert(),confirm(), orprompt(). All notifications (e.g., "Copied to clipboard!") must be implemented as custom, non-intrusive floating toasts or UI elements.
- No Storage: No use of
- Performance: Vanilla JavaScript for all calculations to ensure sub-millisecond updates to the CSS string.
- Buildless: No React, Vue, or build steps. Use standard HTML, CSS3, and modern ES6+ JavaScript.
- External Assets: Google Fonts and small icon libraries (e.g., FontAwesome) are permitted via CDN links in the head tag.
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Frequently Asked Questions
Everything you need to know about using this application.
What is Neumorphism in web design?
Neumorphism, or Soft UI, is a design style characterized by subtle drop shadows and inner shadows that create the illusion of interface elements extruding from or recessing into the background using a single, consistent light source.
Is this CSS Neumorphism generator free to use?
Yes, this tool is completely free, browser-based, and requires no account or installation. You can generate and copy CSS code instantly.
Does this tool save my settings?
No. Due to browser security policies in sandboxed environments, this application does not use cookies, localStorage, or any persistent storage. Your settings are reset upon page refresh.
How do I implement the generated CSS?
Simply click the 'Copy Code' button to grab the CSS snippet, then paste it directly into your stylesheet for the class representing your Neumorphic element.



