CSS layout generator

Preview a Flexbox or Grid layout.

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CSS layout generator processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

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Item labels, one per line

Layout

Options and local file

Grid columns

Gap (px)

Flex basis (px)

Open a text file on this device

Optional settings apply only to this tab.

Your result

HTML source

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Updated 2026-09-20

CSS layout generator explained

Generate a responsive Grid or wrapping Flexbox layout from item labels. Change the grid column count, gap or flex basis, then copy or download the same standalone HTML used by the preview.

Next: CSS formatter

Next: CSS specificity calculator

Next: Contrast checker

A worked example

A three-column grid uses repeat(3, minmax(0, 1fr)) so long labels can wrap inside equal-width columns. Flexbox instead wraps items according to their preferred basis and the available space.

Before you use the result

A layout starter, not a full website builder or browser-compatibility audit. The preview has fixed demonstration styling. Grid keeps the selected column count at narrow widths; add media queries when your final design needs different counts.

Cite this page

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ToolOctopus. “CSS layout generator.” Updated 2026-09-20. https://tooloctopus.com/css-layout-studio.

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