CSS Flexbox Generator
NewVisually build Flexbox layouts with flex-direction, wrap, justify-content, align-items, and gap controls, plus a live preview of adjustable item counts.
Frequently Asked Questions
How is this different from the CSS Flexbox Cheatsheet?
The cheatsheet is a static reference listing every Flexbox property and value. This tool is an interactive builder — you pick values from dropdowns and sliders, see a live preview update instantly, and copy the exact resulting CSS.
Why does changing flex-direction change how the preview items are sized?
When direction is row, items get a wider default min-width and shorter min-height, and vice versa for column, just so the flex behavior (wrapping, alignment) is visually obvious regardless of which direction you pick.
Can I control how many items are in the preview?
Yes — use Add item / Remove item to test wrapping and justify-content/align-items behavior with anywhere from 1 to 10 items, since alignment properties often look different depending on item count.
Does the generated CSS include the item styles too?
No — the output focuses on the container's Flexbox properties (display, flex-direction, flex-wrap, justify-content, align-items, gap), since item-level properties like flex-grow are typically set per-item in real layouts rather than generated generically.