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Free CSS Flexbox Playground

Learn and experiment with CSS Flexbox visually. Adjust container properties, see items respond in real time, and copy the generated CSS. No signup required.

100% free — no account needed

Container Controls
Item Controls

Item 1

Item 2

Item 3

Preview
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Generated CSS
.container {
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: stretch;
  flex-wrap: nowrap;
  gap: 12px;
}

Free CSS Flexbox Playground Features

Experiment with flex properties interactively

Container Controls

Direction, justify-content, align-items, wrap, and gap — all adjustable.

Copy CSS

Generated CSS for the container ready to use in your project.

5 Layout Presets

Centered, navbar, sidebar, grid-like, and footer layouts.

Live Preview

See colored flex items respond to your changes in real time.

FAQ

When should I use Flexbox vs Grid?

Flexbox is best for one-dimensional layouts (rows OR columns). Grid is for two-dimensional layouts (rows AND columns). Many layouts use both.

What does flex-wrap do?

By default, flex items stay on one line and shrink. flex-wrap: wrap allows items to flow to the next line when they don't fit.

What's the difference between justify-content and align-items?

justify-content aligns items along the main axis (horizontal in row, vertical in column). align-items aligns along the cross axis (perpendicular).

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