CSS Flexbox Generator

Visual flexbox layout builder with live preview. Experiment with all flexbox pro...

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Updated

Quick Presets

Container Properties

Live Preview

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2
3

Click an item to edit its properties

Generated CSS

.flex-container {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: flex-start;
  align-items: stretch;
  align-content: stretch;
  gap: 10px;
}
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Generator Features

Container Properties - flex-direction, flex-wrap, justify-content, align-items, align-content, gap
Item Properties - flex-grow, flex-shrink, flex-basis, align-self, order per item
6 Layout Presets - Centered, Space Between, Column, Navbar, Card Grid, Footer
Dynamic Items - Add and remove flex items to test different configurations
Live Preview - Real-time visual preview of your flexbox layout
Smart CSS Output - Only generates item CSS for properties that differ from defaults

Why Use CSS Flexbox Generator?

Visual Layout Builder

See your flexbox layout in real-time as you toggle properties. No guesswork needed.

Full Property Control

Configure every flexbox property: direction, wrap, justify, align, gap, and individual item controls.

Layout Presets

Start with common layouts like Centered, Navbar, Card Grid, and Footer - then customize.

Item-Level Control

Click individual items to set flex-grow, flex-shrink, flex-basis, align-self, and order.

Clean CSS Output

Generates container and item CSS separately. Only outputs non-default item properties.

100% Client-Side

Everything runs in your browser. No data sent to servers, no registration required.

Common Uses for Flexbox

Navigation Bars

Build responsive navbars with logo, links, and actions perfectly aligned.

Card Layouts

Create responsive card grids that wrap and align consistently.

Centering Content

Vertically and horizontally center content with just a few properties.

Page Layouts

Build sidebars, headers, footers, and holy-grail layouts with flexbox.

How It Works

1

Configure Container Properties

Set flex-direction, justify-content, align-items, and other container properties. Use the quick presets for common layouts.

2

Add and Configure Items

Add flex items and click on them to configure individual properties like flex-grow, flex-shrink, and order.

3

Copy the CSS

Once satisfied with your layout, copy the generated CSS code and use it in your project.

Flexbox Tips

Centering Made Easy

Use justify-content: center and align-items: center on a flex container to perfectly center content both horizontally and vertically.

Equal Width Items

Set flex: 1 (flex-grow: 1) on all items to make them share available space equally, regardless of content size.

Wrap for Responsiveness

Use flex-wrap: wrap to allow items to flow to the next line on smaller screens. Combine with a gap value for consistent spacing.

Frequently Asked Questions

CSS Flexbox (Flexible Box Layout) is a one-dimensional layout method for arranging items in rows or columns. It makes it easy to align and distribute space among items in a container, even when their size is unknown or dynamic.
Use Flexbox for one-dimensional layouts (either row OR column), like navigation bars, card rows, or centering content. Use CSS Grid for two-dimensional layouts where you need control over both rows AND columns simultaneously, like complex page layouts.
flex-grow determines how much a flex item should grow relative to other items when there's extra space in the container. A value of 0 means no growth, while higher values mean more growth. If all items have flex-grow: 1, they share space equally.
justify-content aligns items along the main axis (horizontal for row, vertical for column). align-items aligns items along the cross axis (vertical for row, horizontal for column). Think of justify-content as 'spread out' and align-items as 'position within'.
Yes, completely free with no limits. All code generation happens in your browser - nothing is sent to any server. Use it as much as you like!
flex-basis sets the initial size of a flex item before any growing or shrinking happens. It works like width (in row direction) or height (in column direction). Common values include 'auto', pixel values like '200px', or percentages like '50%'.
The order property controls the visual order of flex items without changing the HTML source order. Items with lower order values appear first. The default is 0, so items with negative orders appear before default items.

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