When should I use Flexbox vs Grid?

Use Flexbox for 1D layouts, Grid for 2D layouts.

CSS Layout Generator — Visual Grid & Flexbox Code Builder

🔒100% Browser Processing

No data is ever sent to any server

📝No Registration

Use immediately without creating an account

⚡Real-time Preview

Changes are instantly reflected in preview and code

📐 Visual Preview Drag the bottom edge of the dashed box to resize

flex-direction

flex-wrap

justify-content

align-items

align-content

gap

grid-template-columns

grid-template-rows

gap

justify-items

align-items

justify-content

align-content

📖 About This Tool

An online tool for intuitively creating CSS Flexbox and Grid layouts with a visual GUI and real-time preview.

Supports both Flexbox and CSS Grid. All processing runs in your browser.

🔰 How to Use

Select Layout Method

Choose Flexbox or CSS Grid.

Adjust Properties

Set CSS properties and check results in real-time preview.

Copy CSS Code

Copy the generated CSS and paste it into your project.

📚 Glossary

Flexbox: CSS3 layout module for 1D (row or column) item alignment.
CSS Grid: CSS3 2D layout module controlling rows and columns simultaneously.
justify-content: Controls main-axis item alignment.
align-items: Controls cross-axis item alignment.
gap: Sets spacing between Grid or Flexbox items.

❓ FAQ

Q. When should I use Flexbox vs Grid?: A. Flexbox for 1D, Grid for 2D layouts.
Q. Can it generate responsive CSS?: A. Media queries are not generated, but base layout CSS is produced.
Q. Is data sent to a server?: A. No. Everything runs in your browser.

💡 Use Cases

🎨

Web Design

Quickly design header, footer, and sidebar layouts.

⚡

Prototyping

Rapidly create layout prototypes.

📚

CSS Learning

Visually understand Flexbox and Grid behavior.

📋

Code Snippets

Quickly generate CSS for common layout patterns.

📖 What is CSS Flexbox?

A CSS method for 1D layouts: Flexbox arranges elements along a single direction. Ideal for navigation menus, button groups, and centering. Just add display: flex to the parent.
Key properties: flex-direction sets the axis, justify-content controls main-axis alignment, align-items controls cross-axis. Add flex-wrap: wrap for responsive card grids.

📖 What is CSS Grid? vs Flexbox

Modern CSS for 2D layouts: CSS Grid controls rows and columns simultaneously. Ideal for page structure. Define grids with grid-template-columns and grid-template-rows.
When to use which: Flexbox for "arranging in one direction", Grid for "dividing into rows and columns".

📖 Common Layout Patterns

Equal 3-Column (Grid): display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
Center Alignment (Flexbox): display: flex; justify-content: center; align-items: center;
Sidebar Layout: Grid: grid-template-columns: 250px 1fr;

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