Developer Tools

CSS Box Shadow Generator

Create and preview CSS box shadows with live preview. Adjust offset, blur, spread, color, and inset. Copy the CSS code instantly.

Settings

X Offset: px

Y Offset: px

Blur: px

Spread: px

Color

Inset (inner shadow)

Preview

CSS

Chmod Calculator

Calculate Unix file permissions visually. Click checkboxes to set read/write/execute for owner, group, and others. Shows octal and symbolic notation.

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Calculate CSS selector specificity and understand which styles take precedence. Supports ID, class, attribute, pseudo-class, element, and pseudo-element selectors.

CSS Unit Converter

Convert between CSS units: px, rem, em, pt, vw, vh. Set custom base font size and viewport width.