CSS Flexbox Generator
Create flexbox layouts visually with live preview and code export
Embed This Tool
Add this tool to your website with customizable styling
How to Use
- 1 Choose a preset or start from scratch — Select a preset layout like centered, sidebar, or navbar, or adjust settings manually.
- 2 Configure container properties — Set flex-direction, justify-content, align-items, flex-wrap, and gap values.
- 3 Customize individual items — Click on any item to adjust its flex-grow, flex-shrink, flex-basis, align-self, and order.
- 4 Test responsive behavior — Use the viewport toggle to preview your layout at mobile, tablet, and desktop sizes.
- 5 Copy the generated code — Copy the CSS and HTML code to use in your project.
Frequently Asked Questions
What is CSS Flexbox?
Flexbox (Flexible Box Layout) is a CSS layout model that provides an efficient way to arrange, align, and distribute space among items in a container. It works along a single axis (row or column) and is ideal for UI components like navigation bars, card layouts, and centering elements.
When should I use Flexbox vs CSS Grid?
Use Flexbox for one-dimensional layouts (single row or column), like navigation menus, button groups, or centering elements. Use CSS Grid for two-dimensional layouts where you need control over both rows and columns simultaneously, like complex page layouts or image galleries.
What does flex-grow do?
The flex-grow property determines how much an item should grow relative to other flex items in the container. A value of 0 means the item won't grow, while a value of 1 or higher means it will expand to fill available space proportionally.
How does justify-content vs align-items work?
justify-content aligns items along the main axis (horizontal for row, vertical for column). align-items aligns items along the cross axis (perpendicular to main). For example, in a row layout, justify-content controls horizontal positioning and align-items controls vertical positioning.