CSS Flexbox Layout Generator & Visual Builder

FLEXBOX CONTAINER CONTROLS

flex-direction

justify-content

align-items

flex-wrap

gap (px)

Item Count

LIVE VISUAL PREVIEW & CSS CODE

Visual Canvas Preview

Generated CSS

CSS Flexible Box Layout (Flexbox) Specification

CSS Flexbox provides a 1-dimensional layout system for aligning UI components, navigation bars, and responsive card grids along rows or columns.

Flexbox Property Matrix

display: flex: Activates flex layout mode on the container element.
justify-content: Aligns flex items along the primary axis.
align-items: Aligns flex items along the cross axis.
gap: Sets spacing distance between adjacent flex items.

Related CSS & Design Tools

Calculate CSS Clamp responsive typography with the CSS Clamp Calculator, check color contrast with the Color Contrast Checker, or convert px to rem with the PX to REM Converter.

Frequently Asked Questions

Common questions about this tool.

How does the CSS Flexbox Generator work? ▼

Configure flexbox container properties (direction, alignment, wrapping, gap) and child item properties. The generator renders a real-time visual preview and generates clean CSS flexbox code.

What is the difference between `justify-content` and `align-items`? ▼

`justify-content` controls alignment along the main axis (horizontal by default for `row`), while `align-items` controls alignment along the cross axis (vertical by default).

Is my CSS code stored on external servers? ▼

100% private. All visual previews and CSS code generation execute locally in your web browser.

Can I copy the generated CSS code into my project? ▼

Yes! Click "Copy CSS Code" to copy `.container` and `.item` flexbox rules directly into your stylesheet.

How do I build CSS Grid layouts? ▼

Use our dedicated <a href="/tools/css-grid-generator/">CSS Grid Layout Generator</a> tool.