CSS Flexbox Generator

Create and customize CSS Flexbox layouts visually. Configure direction, wrap, alignment, gap, and item order with a live preview.

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Preview Flex items are numbered for reference

What is CSS Flexbox?

CSS Flexbox (Flexible Box Layout) is a one-dimensional layout system that distributes space along a single axis. It gives you powerful control over alignment, direction, order, and sizing of elements within a container.

This tool features:

  • Real-time preview — See the flex layout update instantly as you adjust controls.
  • Full Flexbox control — Configure direction, wrap, alignment, content distribution, and gap.
  • Visual item display — Flex items are numbered and color-coded for easy reference.
  • Copy HTML & CSS — Export both the HTML structure and CSS code with one click.

CSS Flexbox Properties

Property Description Example
flex-direction Defines the main axis direction row
flex-wrap Controls whether items wrap to a new line wrap
justify-content Aligns items along the main axis center
align-items Aligns items along the cross axis center
align-content Aligns multi-line flex lines along the cross axis space-between
gap Sets the gap between flex items 8px

How to Use

  1. Set the flex properties — Choose direction, wrap, and alignment options from the dropdowns.
  2. Customize spacing and sizing — Adjust gap, item count, and item width using the sliders.
  3. Preview the layout — See how items behave with different flex properties in real time.
  4. Copy the code — Click Copy HTML or Copy CSS to export your flex layout.

Frequently Asked Questions

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

justify-content aligns items along the main axis (horizontal in a row layout), while align-items aligns items along the cross axis (vertical in a row layout). In a column layout, these axes are swapped.

When should I use Flexbox vs Grid?

Use Flexbox for one-dimensional layouts (single row or column). Use CSS Grid for two-dimensional layouts (rows AND columns). Flexbox excels at distributing space and aligning content along a single axis.

Is this tool free to use?

Yes. All processing happens entirely in your browser. No data is sent to any server.

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Last updated: 30 Jun 2026

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