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CSS Box Shadow Generator

Build smooth, realistic, multi-layered CSS box shadows with live preview, inset controls, and copy-ready CSS & Tailwind code.

🔒 100% In-Browser Elevation Stacking: Instant GPU-accelerated preview calculations with zero server logging.
Live Shadow Canvas
Canvas Backdrop:
Interactive Element2 Stacked Layers
Box Radius (20px)
Box Background
Layer #1
Horizontal (X)0px
Vertical (Y)10px
Blur Radius25px
Spread Radius-5px
Color:
Opacity:15%
Layer #2
Horizontal (X)0px
Vertical (Y)4px
Blur Radius6px
Spread Radius-2px
Color:
Opacity:10%
Curated Elevation Presets
CSS Box Shadow Code
box-shadow: 0px 10px 25px -5px rgba(0, 0, 0, 0.15),
             0px 4px 6px -2px rgba(0, 0, 0, 0.10);
Tailwind CSS Arbitrary Shadow
shadow-[0px_10px_25px_-5px_rgba(0,_0,_0,_0.15),_0px_4px_6px_-2px_rgba(0,_0,_0,_0.10)]
100% Private. Your data never leaves your device.
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What is CSS Box Shadow Generator?

Layering subtle CSS box shadows creates visual hierarchy and realistic physical depth in modern user interfaces. Our CSS Box Shadow Generator allows you to stack multiple shadow layers with independent horizontal/vertical offsets, blur radii, spread values, opacity controls, inset toggles, and instant CSS and Tailwind exports in browser memory.

Designed for accuracy, speed, and privacy, this tool runs entirely on your local device with zero network latency.

How to Use the CSS Box Shadow Generator

  1. 1
    Adjust the Offset X and Offset Y sliders to set the directional light source and shadow displacement.
  2. 2
    Fine-tune the Blur Radius to soften the shadow and Spread Radius to expand or contract its perimeter.
  3. 3
    Toggle the "Inset" checkbox to switch between external drop shadows and internal inset shadows.
  4. 4
    Add multiple shadow layers to build realistic diffuse elevation stacks, then copy the CSS or Tailwind code.

Formula & Calculation Logic

Implements W3C CSS Backgrounds and Borders Module Level 3 specification. Multiple shadow layers are separated by commas and rendered front-to-back in declaration order.

CSS Syntax: box-shadow: [inset] <offset-x> <offset-y> <blur-radius> <spread-radius> <color>

CSS Box Shadow Generator Frequently Asked Questions

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