CSS Flexbox Generator

Build flexible one-dimensional layouts without the guesswork. Our free CSS Flexbox Generator lets you set the direction, alignment and spacing of your items, previews the result live, and hands you clean, copy-ready CSS.

How to Use

1. Choose the flex direction — row, column or their reverses.
2. Set how items are distributed along the main axis with justify-content.
3. Set the cross-axis alignment with align-items.
4. Adjust the gap between items and the number of preview items.
5. Click Copy CSS, paste it into your stylesheet and add the flex-container class to your wrapper.

Key Features

• Live preview that reacts to every change instantly.
• Full control over direction, justification, alignment and gap.
• Clean, modern CSS using the gap property.
• One-click copy button with confirmation.
• Free to use with no sign-up, on any device.

FAQs

What is Flexbox?

Flexbox is a one-dimensional CSS layout model for arranging items in a row or a column. It excels at navigation bars, centred content, card rows and any layout that flows in a single direction.

What is the difference between justify-content and align-items?

justify-content distributes items along the main axis (horizontally in a row), while align-items aligns them along the cross axis (vertically in a row).

When should I use Flexbox instead of CSS Grid?

Use Flexbox for one-dimensional layouts — a row or column of items. Use CSS Grid when you need control over both rows and columns at once, such as a full page layout.

Is the gap property supported in Flexbox?

Yes. All modern browsers support gap in flex containers, so you no longer need margins on every item to space them out.

How do I use the generated CSS?

Copy the code into your stylesheet, add the flex-container class to a wrapper element, and place your items inside it — they will lay out exactly as in the preview.

Related Tools

You may also like our CSS Grid Generator, CSS Button Generator and CSS Card Generator.