Free CSS Box Shadow Generator

Visual CSS Box Shadow Builder

This tool lets you build a CSS box-shadow visually — adjusting horizontal and vertical offset, blur radius, spread, color, and opacity with sliders — while seeing a live preview and generating the exact CSS code to copy into your stylesheet.

Understanding Box Shadow Properties

• Horizontal offset — moves the shadow left (negative) or right (positive) of the element.
• Vertical offset — moves the shadow up (negative) or down (positive) of the element.
• Blur radius — controls how soft or sharp the shadow's edges are; higher values create a more diffuse, spread-out shadow.
• Spread — expands (positive) or shrinks (negative) the shadow's overall size independent of blur.
• Color and opacity — sets the shadow's color and how transparent or solid it appears.
• Inset — flips the shadow from an outer drop shadow to an inner, recessed shadow.

Common Box Shadow Use Cases

• Cards and panels — a subtle shadow lifts UI elements visually off the background.
• Buttons — a small shadow adds depth and a sense of interactivity.
• Modals and dropdowns — a stronger shadow helps floating elements stand out clearly from page content behind them.
• Input fields — an inset shadow can create a subtle recessed, "pressed-in" appearance.

Privacy and Local Processing

All shadow building happens directly in your browser — nothing is sent to a server.