Flexbox & Grid Layout Builder

Visually explore and generate CSS for Flexbox and Grid layouts.

About This Tool

This interactive tool helps you understand and build CSS layouts using Flexbox and Grid. Whether you're a beginner learning CSS or an experienced developer needing to quickly prototype a layout, this builder provides a visual playground to see how different CSS properties affect your design. Experiment with alignment, spacing, and column structures, then instantly grab the generated CSS code.

Layout Mode

Justify Content

Align Items

Gap (px)

Number of Items

Live Preview

Item 1

Item 2

Item 3

Item 4

Item 5

Generated CSS

display: flex;
justify-content: center;
align-items: center;
gap: 16px;
flex-wrap: wrap;

Flexbox vs. CSS Grid: When to Use Which?

Flexbox

Best for: One-dimensional layouts (rows or columns).

Distributing space among items in a single direction.
Aligning items along an axis.
Creating navigation bars, form elements, or component groups.
Content-out layouts (content dictates size).

CSS Grid

Best for: Two-dimensional layouts (rows and columns simultaneously).

Defining overall page layout (header, sidebar, main content, footer).
Overlapping elements.
Creating complex, responsive web designs.
Layout-in content (layout dictates size).

While both are powerful, choosing between Flexbox and Grid depends on the dimensionality of your layout. Flexbox excels at distributing and aligning content within a single row or column, making it ideal for components. Grid, on the other hand, is designed for laying out entire pages or sections in two dimensions, giving you precise control over rows and columns simultaneously.