What is CSS Box Shadow Generator?

CSS Box Shadow Generator is a visual tool that helps you create CSS box-shadow effects without memorizing the syntax. Instead of writing shadow values by hand, you use intuitive sliders and controls to design the perfect shadow, then copy the generated CSS code directly into your project.

Why visual tools matter: The CSS box-shadow property accepts multiple values in a specific order: horizontal offset, vertical offset, blur radius, spread radius, and color. Getting the right combination can be tricky, especially when layering multiple shadows for realistic effects. This tool gives you instant visual feedback as you adjust each parameter.

Key Highlights

Multiple Shadow Layers

Stack up to 10 independent shadow layers to create complex, realistic effects with depth and dimension.

Built-in Presets

Start from professionally designed shadows like Elevated, Neumorphism, or Material Design styles.

Full Control

Fine-tune offset, blur, spread, color, opacity, and inset for each layer with precision.

Live Preview

See changes instantly as you adjust any value, with real-time visual feedback.

How to Use

Follow these simple steps to create professional shadow effects in minutes:

Adjust Shadow Controls

Use the sliders or type values directly to configure your shadow properties:

Offset X — Moves the shadow left (-) or right (+)
Offset Y — Moves the shadow up (-) or down (+)
Blur — Controls the softness of the shadow edge (0 = sharp)
Spread — Expands (+) or shrinks (-) the shadow size
Color & Opacity — Pick a shadow color and adjust its transparency
Inset — Toggle to create an inner shadow instead of an outer one

Add More Layers (Optional)

Click the + button to add additional shadow layers. Each layer has independent controls. Click on a layer in the list to select it and modify its values. Use the eye icon to show/hide individual layers.

Try Presets (Optional)

Browse the presets grid at the bottom of the controls panel. Click any preset to instantly apply it. You can then customize the values further to match your design.

Customize the Preview

Test your shadow on different backgrounds by changing the Background and Element colors. Switch between Rounded, Square, and Circle shapes to see how the shadow looks on different elements.

Copy the CSS

When satisfied, click the Copy button above the code output. The complete box-shadow CSS property is copied to your clipboard, ready to paste into your stylesheet.

Features

Visual Shadow Controls

Each shadow property has a dedicated slider with a synchronized number input. Drag the slider for quick adjustments or type exact values for precision. Changes are reflected in the preview instantly.

Pro tip: Use sliders for rapid experimentation and number inputs when you need pixel-perfect precision. The dual-input system gives you the best of both worlds.

Multiple Shadow Layers

Real-world shadows are rarely a single layer. This tool lets you stack up to 10 shadow layers, each with independent settings. Combine subtle and strong shadows to achieve depth that looks natural and polished.

Single Layer

Flat Shadow

One-dimensional appearance
Artificial look
Limited depth perception
Less realistic

Multiple Layers

Realistic Shadow

Natural depth and dimension
Professional appearance
Smooth gradients
Lifelike elevation

Shadow Presets

Choose from 9 carefully crafted presets to get started quickly:

Subtle

A light, barely-there shadow for clean interfaces

Elevated

Two-layer shadow for a gentle lift effect

Strong

Bold, prominent shadow that demands attention

Soft

Three-layer diffused shadow for a smooth, realistic look

Neon

Colored glow effect using spread and vivid colors

Inset

Inner shadow for pressed or recessed elements

Neumorphism

Soft UI style with light and dark shadow pair

Material

Google Material Design inspired elevation shadow

Float

High-elevation floating effect with distant shadow

Preview Customization

Change the preview background color and element color to test how your shadow looks on different surfaces. Switch between rounded, square, and circle shapes to match your actual UI elements.

Background Colors

Test shadows on light, dark, or custom backgrounds

Element Colors

Adjust element color to match your design system

Shape Options

Preview on rounded, square, or circular elements

Live CSS Output

The generated CSS code updates in real-time as you make changes. Copy it with one click and paste directly into your project.

Example CSS Output

box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1),
            0 2px 4px rgba(0, 0, 0, 0.06);

Frequently Asked Questions

What is the CSS box-shadow property?

box-shadow is a CSS property that adds shadow effects around an element. It accepts values for horizontal offset, vertical offset, blur radius, spread radius, and color. Multiple shadows can be separated by commas.

Syntax Example

box-shadow: offset-x offset-y blur-radius spread-radius color;

Why do my shadows look flat and unrealistic?

Single-layer shadows with high opacity tend to look artificial. For more realistic results, use multiple layers with low opacity (10-25%) and avoid pure black. The "Soft" and "Elevated" presets demonstrate this technique.

Best practice: Layer 2-3 shadows with decreasing opacity and increasing blur to mimic natural light diffusion.

What does the Inset option do?

The Inset toggle changes the shadow from an outer shadow (default) to an inner shadow. Inner shadows create a pressed or recessed effect, commonly used for input fields and interactive states.

Outer shadows: Create elevation and depth
Inner shadows: Create pressed or carved effects

How many shadow layers can I add?

You can add up to 10 shadow layers. Each layer has independent controls for offset, blur, spread, color, opacity, and inset. You can also toggle the visibility of individual layers.

Performance note: While 10 layers are supported, most realistic effects use 2-4 layers. More layers may impact rendering performance on older devices.

Can I use colored shadows instead of black?

Yes. In fact, colored shadows often look better than black ones. Use the color picker to choose a shadow color that matches or complements your design palette. The "Neon" preset is a great example of colored shadows.

Use brand colors for subtle branded shadows
Use complementary colors for vibrant glow effects
Use dark blue or purple instead of pure black for softer shadows

Is the generated CSS compatible with all browsers?

The box-shadow property is supported by all modern browsers including Chrome, Firefox, Safari, and Edge. No vendor prefixes are needed.

Browser Support 100%