Free tool

CSS Box Shadow Generator

Build layered box-shadow values with live previews.

Live previewCopy CSSInstant

100% Free to use
No credit card required
Works offline in your browser

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Why it helps

Design shadows

Adjust blur, spread, and opacity quickly.

Copy-ready

Paste the generated CSS into your UI.

CSS

Box shadow generator

Live preview

Shadow layer

X offset Y offset Blur Spread Color Opacity (%)

Inset shadow

CSS

box-shadow: 0px 12px 24px -6px rgba(31, 41, 55, 0.2);

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How to use Box Shadow Generator for Maximum Social Media Growth

The Box Shadow Generator allows designers, marketers, and photographers to build layered box-shadow values with live previews. instantly in your browser. Maintain pixel-perfect quality and exact aspect ratios required for modern web displays and social feeds.

1. Select & Input

Upload your file or enter content directly in your web browser. 100% private and runs locally on your device.

2. Optimize & Format

Adjust settings, crop dimensions, or refine text tailored for social media algorithms and resolution standards.

3. Publish & AutoPost

Download your high-quality asset or push directly to Auto Poster AI to schedule automated posts across all channels.

Design shadows

Adjust blur, spread, and opacity quickly.

Copy-ready

Paste the generated CSS into your UI.

Why Formatting Consistency Matters

Social media algorithms favor content that meets platform recommendations. Using optimized tools like Box Shadow Generator helps prevent compression artifacts, aspect ratio distortion, and text cut-offs on mobile feeds.