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Yes, all basic tools on NanoTools are completely free to use with no registration required. We offer premium features for power users.

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CSS Flexbox Generator - Create Flex Layouts

Generate CSS Flexbox online for free. Create flex layouts visually. Copy CSS code.

CSS Flexbox Generator

Visual tool to generate CSS Flexbox layouts

Preview

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Flexbox Properties

Flex Direction

Justify Content (Main Axis)

Align Items (Cross Axis)

Flex Wrap

Gap: 0px

Generated CSS

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

What This Tool Does

Generates CSS flexbox layout code
Visual preview of flex container and items
Configure all major flexbox properties
Adjust gap spacing between flex items
Live updates as you change settings

How to Use

1
Set direction
Choose row, column, or reversed variants
2
Configure alignment
Set justify-content and align-items
3
Adjust spacing
Set flex-wrap and gap values
4
Copy CSS
Get generated flexbox code for your project

How it works

1

Set direction

Choose row, column, or reversed variants

2

Configure alignment

Set justify-content and align-items

3

Adjust spacing

Set flex-wrap and gap values

4

Copy CSS

Get generated flexbox code for your project

Use Cases

Creating responsive navigation bars
Building card grid layouts
Centering elements horizontally and vertically
Learning flexbox properties interactively
Rapid prototyping of flex-based designs

Frequently Asked Questions

What is flexbox?

Flexbox is a CSS layout model for arranging items in rows or columns with flexible sizing and alignment.

When should I use flexbox vs grid?

Use flexbox for 1-dimensional layouts (rows or columns). Use grid for 2-dimensional layouts.

What is justify-content?

It aligns items along the main axis (horizontal in row, vertical in column).

What is align-items?

It aligns items along the cross axis (vertical in row, horizontal in column).