Box Shadow Generator

Create beautiful CSS box shadows with multiple layers. Perfect for adding depth and elevation to your web designs with a live preview.

Built & Maintained by the devtoolspack Team

Last updated: March 2026

Presets

Shadow Layers (1)

Layer 1

Horizontal: 0px

-5050

Vertical: 4px

-5050

Blur: 6px

0100

Spread: 0px

-5050

Color

Opacity: 25%

0100

Inset shadow (inner shadow)

CSS Code

box-shadow: 0px 4px 6px 0px rgba(0, 0, 0, 0.25);

Mastering Depth with our multi-layered CSS Box Shadow Generator

In modern interface engineering, visual hierarchy is often achieved through the strategic use of shadows to simulate elevation (z-index depth). Our CSS Box Shadow Generator is a professional automation utility designed to help developers create realistic, multi-layered shadow systems. By moving beyond single-layer shadows and embracing ambient and key-light stacking, you can achieve the "premium" depth seen in design systems like Tailwind CSS, Material UI, and Apple Human Interface Guidelines.

This tool provides immediate visual feedback, allowing you to iterate on complex configurations without manual CSS trial-and-error.

Key Engineering Features

Our generator supports the full spectrum of the box-shadow spec:

Multi-Layer Stacking: Overlay an infinite number of shadows to simulate realistic light dispersion and soft ambient occlusion.
Inset & Outset Modes: Seamlessly switch between raised cards and recessed UI elements (like form fields or buttons).
Alpha Channel Control: Fine-tune transparency using HEX-to-RGBA conversion for subtle, sophisticated elevation.
Performance Presets: Instant access to optimized configs for Floating Action Buttons, Hover States, and Modal Overlays.

Privacy and Performance

As a standard across devtoolspack, this utility is a 100% serverless, client-side application. All shadow calculations, RGBA conversions, and real-time previews are rendered strictly within your browser's local sandbox. No design data, hex codes, or layout parameters are ever uploaded to a backend. This ensures the highest possible security for your proprietary design tokens and a zero-latency interactive experience.

Frequently Asked Questions

What is the box-shadow CSS property?

The box-shadow property adds shadow effects around an element's frame. You can set multiple effects separated by commas. A box shadow is described by X and Y offsets, blur and spread radius, and color.

What is the difference between inset and outset shadows?

Outset (default) shadows appear outside the element, creating a raised effect. Inset shadows appear inside the element's frame, creating a recessed or carved effect. You can combine both types for complex designs.

How do multiple shadow layers work?

CSS allows multiple box-shadows separated by commas. The first shadow is on top, and subsequent shadows are layered underneath. This enables complex, realistic shadow effects like material design elevation.

What are the performance implications of box shadows?

Box shadows can impact rendering performance, especially with large blur radius values or many layers. Use them judiciously on elements that don't animate frequently. Consider using filter: drop-shadow() for irregular shapes.

How do I create material design elevation shadows?

Material design uses multiple shadow layers with different blur and spread values to simulate realistic lighting. Use our "elevated" or "lifted" presets as starting points, which combine ambient and key shadows.