CSS Flexbox Generator
Visually build Flexbox layouts with live preview and copy-ready CSS for container and items.
How to Use
- Adjust flex-direction, justify-content, align-items, and flex-wrap using the dropdowns.
- Set the gap and number of preview items to match your layout.
- Watch the live preview update instantly.
- Copy the generated container CSS.
Frequently Asked Questions
QWhat's the difference between justify-content and align-items?
justify-content controls alignment along the main axis (horizontal by default); align-items controls alignment along the cross axis (vertical by default).
QWhen should I use Flexbox vs Grid?
Flexbox excels at one-dimensional layouts (a row or a column). CSS Grid is better suited for two-dimensional layouts with both rows and columns.
QIs Flexbox supported in all browsers?
Yes — Flexbox has full support in all modern browsers without vendor prefixes.
About This Tool
Flexbox (CSS Flexible Box Layout) is a one-dimensional layout model for arranging items in rows or columns with powerful alignment and spacing control, defined in the CSS Flexible Box Layout Module.