Flexbox Editor
Free online Flexbox layout editor tool, visual real-time preview
Flexbox Properties Reference
flex-direction: row | column | row-reverse | column-reverse. justify-content: flex-start | center | flex-end | space-between | space-around | space-evenly. align-items: stretch | flex-start | center | flex-end | baseline. flex-wrap: nowrap | wrap. gap: spacing between items.
How to Use the Flexbox Editor
Adjust the flex container properties using the controls. The preview shows how items are arranged in real time. Add or remove items to test different configurations. Copy the generated CSS for your project.
▶What is the difference between justify-content and align-items?
justify-content controls alignment along the main axis (horizontal for row, vertical for column). align-items controls alignment along the cross axis (perpendicular to the main axis).
▶How do I center an element with Flexbox?
Set the parent to display: flex; justify-content: center; align-items: center; This centers the child element both horizontally and vertically.
▶What does flex-wrap do?
By default, flex items try to fit on one line (nowrap). Setting flex-wrap: wrap allows items to flow to the next line when they run out of space.