Is Flexbox Visualizer free?

Yes, Flexbox Visualizer is completely free to use with no signup required.

Does Flexbox Visualizer send my data to a server?

No. Flexbox Visualizer runs entirely in your browser using client-side JavaScript. Your data never leaves your device.

Visualize CSS Flexbox layouts. Customize directions, wrap, alignments, and individual item properties with real-time previews.

DevTab

Never leaves your browser

Configure and visualize flexbox alignments with growth, shrink, and wrap selectors.

flex-direction

justify-content

align-items

flex-wrap

Gap (spacing)16px

Flex Items (3)

Click any colored box in the preview context to customize growth, shrink, and align attributes.

Interactive Preview Layout

Box 1

Box 2

Box 3

Generated CSS Code

143 B8 linesBoxes: 3 | Direction: ROW