CSS Box Shadow Generator

Design smooth, multi-layered, photorealistic box shadows with real-time visual preview and instant CSS or Tailwind export.

At a glance

CSS Box Shadow Generator is a free web tool that generates smooth, realistic CSS box shadows with live preview. It toggles inner inset shadows for sunken card aesthetics, embossed buttons, and modern search inputs. Your inputs never leave your device, and there is no sign-up or install.

Developer Suite: CSS Box Shadow CSS Gradient CSS to Tailwind Color Converter CSS Minifier HTML to JSX

100% Client-Side Multi-Layer Shadow Studio

Design smooth, realistic elevation shadows with real-time visual preview and instant CSS, Tailwind arbitrary class, and CSS variable code generation.

Instant Math
Presets:
Interactive Stage
Background:
Shadow Element 2 Layers Active
16px
GPU Accelerated
(Editing Layer 1)
0px
4px
14px
0px
12%
Click to copy
CSS box-shadow Rule 
box-shadow: ...
Tailwind CSS Arbitrary Utility 
shadow-[...]
CSS Custom Property (Variable) 
--box-shadow: ...

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Why Use This CSS Box Shadow Generator?

Multi-Layer Shadow Stacking: Stack up to 6 independent shadow layers to create photorealistic, smooth elevations and natural ambient light depth.
Granular Parameter Sliders: Fine-tune horizontal offset (X), vertical offset (Y), blur radius, spread radius, color, and alpha opacity in real time.
Inset Shadow Support: Toggle inner inset shadows for sunken card aesthetics, embossed buttons, and modern search inputs.
Curated Designer Presets: Instant one-click presets for Subtle Elevation, Smooth Layered, Floating Modal, Neo-Brutalist Hard, Neon Glow, and Embossed Inset.
Polyglot Code Generation: Export production-ready standard CSS rules with -webkit- fallbacks, Tailwind CSS arbitrary classes, and CSS Custom Properties.
100% Client-Side Execution: All shadow math and styling occur instantly in your browser memory with zero server lag or external telemetry.

How to Use CSS Box Shadow Generator

1

Customize Layer Offsets

Adjust the horizontal, vertical, blur radius, spread radius, and opacity sliders on the active shadow layer.

2

Add Multiple Layers

Click 'Add Layer' or 'Duplicate' to stack subtle layers for smooth, realistic elevation and natural lighting depth.

3

Copy Code

Click to copy the generated standard CSS ruleset, Tailwind arbitrary utility class, or CSS Custom Property into your web project.

Worked example: Smooth Layered Card Elevation

The engine converts each hex color plus alpha to rgba, formats offsets with optional inset prefix, and joins layers into standard CSS.

Shadow Layer Parameters Source 
Layers: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1)
Compiled CSS Box-Shadow Rule Processed 
box-shadow: 0px 4px 6px -1px rgba(0,0,0,0.1), 0px 2px 4px -2px rgba(0,0,0,0.1);

Technical Specifications & Engine Details

Technical specifications and engine details for CSS Box Shadow Generator
Specification Details
Supported Formats OPTIONS → CSS, TAILWIND
Execution Mode 100% Client-Side In-Browser (client)
Browser Requirements Requires modern web browser with ECMAScript 6+ and standard DOM Web APIs.
Performance Constraints Client browser memory limit (typically 1–2 GB RAM); processing speed depends on local device CPU.
Maintained by Pragyan Pahadi

100% Client-Side Privacy Guarantee

All shadow math synthesis, preview rendering, and code generation occur 100% locally in your web browser. Zero design data is sent to external servers.

Frequently Asked Questions

What is CSS box-shadow and how does it work?
The CSS box-shadow property attaches one or more drop-shadows to an element's frame. It is described by X and Y offsets from the element, blur and spread radii, and color. Multiple shadows can be separated by commas to create realistic depth.
How do I make smooth, realistic shadows in CSS?
Real-world shadows have ambient light scattering. Instead of a single harsh shadow, realistic digital shadows stack multiple subtle layers (e.g., a tight dark contact shadow paired with a wide, soft, low-opacity ambient blur).
Does this generator support inset shadows?
Yes. Check the 'Inset Shadow' box on any layer to turn it into an inner shadow, drawing the shadow inside the element's boundary for an embossed or carved look.
How can I use the generated shadow in Tailwind CSS?
Tailwind CSS supports arbitrary values with brackets. Our generator formats your custom multi-layer shadow as a valid shadow-[...] utility class that you can directly paste into your class attributes.

Methodology

Rankings and recommendations here are never paid for.

Last updated .

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