CSS Box Shadow Generator

The CSS Box Shadow Generator lets you visually configure horizontal offset, vertical offset, blur radius, spread radius, shadow color, and opacity — then instantly outputs the ready-to-use CSS property and a Bootstrap 5 card component demonstrating the effect. Designed for front-end developers and UI designers who want precise control without memorizing the box-shadow shorthand syntax.

Configuration

Content

Card Title

Card Body Text

Button Label

Shadow

Horizontal Offset (px)

Vertical Offset (px)

Blur Radius (px)

Spread Radius (px)

Shadow Color

Shadow Opacity (%)

Inset Shadow

Design

Card Background Color

Button / Accent Color

Border Radius (px)

Layout

Card Width

Page Background

How to Use

1. Configure the shadow offsets, blur, spread, and color using the controls in the panel. 2. Adjust the preview card's appearance — background color, border radius, and element size — to match your target component. 3. Preview the live result rendered as a Bootstrap 5 card with your exact shadow applied. 4. Copy the generated CSS box-shadow value or download the complete Bootstrap 5 HTML snippet ready to paste into any project.

Why Use This Tool?

Writing box-shadow CSS by hand requires mentally tracking four numeric values plus a color with opacity — a process that easily wastes 10–15 minutes of trial and error per component. This generator eliminates that loop entirely, producing the exact CSS declaration and a working Bootstrap 5 HTML block you can drop straight into production with no third-party dependencies or libraries required.

Frequently Asked Questions

What is the CSS Box Shadow Generator?

It is a free browser-based tool that lets you interactively configure every parameter of the CSS box-shadow property and instantly outputs both the CSS declaration and a complete Bootstrap 5 HTML component showing the effect.

Can I generate inset shadows and multiple shadows?

Yes — enable the Inset toggle to switch from an outer drop shadow to an inner inset shadow, which is commonly used for pressed button states, inner glow effects, and recessed input fields. The generated CSS declaration includes the 'inset' keyword automatically when selected.

Is it free?

Yes — the CSS Box Shadow Generator is completely free with no signup required. Built by the CanvasBuilder.co team.