Flexbox Generator

Configure a CSS Flexbox container and preview the layout immediately. Adjust direction, wrapping, alignment, spacing, and individual items, then copy the generated CSS into your project.

Features

Visual flex container controlsLive preview with itemsAll flexbox propertiesResponsive designCopy CSS codeCommon layout presets

Flexbox Generator

Quick Presets

Container Properties

flex-direction

flex-wrap

justify-content

align-items

gap: 0px

Items

Number of Items

flex-grow: 0

flex-shrink: 1

flex-basis

Live Preview

Container:

H:px

Container: 200px height • Items: 3

Generated CSS

.flex-container {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  justify-content: flex-start;
  align-items: stretch;
  align-content: stretch;
}

Flexbox Quick Guide

Main Axis (justify-content)

flex-start - Start of container

flex-end - End of container

center - Center of container

space-between - Even spacing

space-around - Equal space around

space-evenly - Equal space everywhere

Cross Axis (align-items)

stretch - Fill container

flex-start - Start of cross axis

flex-end - End of cross axis

center - Center of cross axis

baseline - Text baseline

Item Properties

flex-grow - How much to grow

flex-shrink - How much to shrink

flex-basis - Initial size

Shorthand: flex: grow shrink basis

How to use the Flexbox Generator

1Start from a preset or the default flex container.
2Set direction, wrap, justify-content, align-items, and gap.
3Add or configure preview items to test the layout.
4Copy the generated CSS and apply it to your container and children.

Common uses

Center content vertically and horizontally.
Build navigation bars and responsive rows.
Prototype wrapping card and control layouts.

Container and item behavior

Flexbox controls layout along a main axis and a cross axis. Direction changes which axis is primary, so justify-content and align-items can appear to exchange visual roles.

Frequently asked questions

When should I use Flexbox instead of Grid?

Flexbox is well suited to one-dimensional rows or columns. CSS Grid is usually better when rows and columns must be controlled together.

Can the preview wrap items?

Yes. Enable wrapping and adjust the available space and item settings.

Can I copy the CSS?

Yes. The generator provides copy-ready layout styles.

Flexbox Generator

Features