Flexbox Generator
Visually build a CSS Flexbox layout with live preview and copy the generated flex CSS — set flex-direction, flex-wrap, justify-content, align-items, align-content, gap, and the number of items.
The Flexbox Generator is a free, visual tool for building CSS Flexbox layouts without writing code by hand. Choose a flex-direction, set wrapping, pick how items are spread with justify-content and align-items, add a gap, and change the number of flex items — then watch a live preview update in real time. When the layout looks right, copy the generated display: flex CSS and paste it straight into your stylesheet.
What is a Flexbox generator?
Flexbox is a one-dimensional CSS layout model that distributes space along a single row or column. A Flexbox generator gives you selects and inputs for the container properties — flex-direction, flex-wrap, justify-content, align-items, align-content, and gap — and turns your choices into ready-to-use CSS. Instead of memorizing the syntax, you adjust the controls, see the result instantly, and copy the code.
How to use the Flexbox generator
Building a flex layout takes only a few steps:
- Pick a flex-direction: row, row-reverse, column, or column-reverse.
- Choose a flex-wrap value to let items wrap onto new lines.
- Use justify-content to position items along the main axis and align-items along the cross axis.
- Set align-content to control spacing of wrapped lines, and add a gap between items.
- Choose how many items to preview, then copy the generated CSS for your container.
What is the difference between justify-content and align-items?
justify-content positions flex items along the main axis — the direction set by flex-direction. With a row direction that is horizontal, and with a column direction it is vertical. align-items positions items along the cross axis, the perpendicular direction. Values like center, flex-start, and flex-end work on both, while space-between, space-around, and space-evenly distribute leftover space along the main axis only.
When does align-content apply?
align-content only has an effect when items wrap onto multiple lines, so it needs flex-wrap set to wrap or wrap-reverse and enough items to fill more than one line. It controls how those wrapped lines are spaced within the container. With a single line of items, align-content does nothing and align-items handles cross-axis positioning instead.
Why use this Flexbox generator?
- 100% free with no ads, sign-up, or limits.
- Live preview updates instantly as you change any setting.
- Generates clean, standard CSS you can copy with one click.
- Covers flex-direction, flex-wrap, justify-content, align-items, align-content, and gap.
- Runs entirely in your browser — nothing is uploaded.
- Great for learning how Flexbox properties affect a layout.
Frequently asked questions
Is the Flexbox generator free?
Yes. Every tool on ToolsSoup is completely free, with no account, sign-up, or hidden limits.
Does the generated CSS work in all browsers?
Yes. Flexbox is supported by all modern browsers, so the display: flex code this tool produces works everywhere current versions of Chrome, Firefox, Safari, and Edge run.
What is the difference between Flexbox and CSS Grid?
Flexbox lays out items in one dimension — a single row or column — while CSS Grid handles two dimensions with rows and columns at once. Use Flexbox for toolbars, navbars, and simple alignment, and Grid for full page or card layouts.
Is my data uploaded anywhere?
No. The generator runs entirely in your browser, so nothing you configure is sent to or stored on any server.