CSS Grid Gap Visualizer
Visualize CSS grid row and column gaps with a live preview.
See your grid gaps
row-gap and column-gap control the gutters in a CSS grid, and getting them balanced is a visual decision. This visualizer renders a live grid as you adjust the gaps so you can see how the spacing feels rather than guessing at pixel values.
Seeing the gutters in context makes it easy to find spacing that looks even and intentional across a real layout. Set the row and column gaps, watch the grid respond, and copy the gap CSS for your container.
Balanced gaps, previewed
Seeing row-gap and column-gap render live makes the gutter a visual decision instead of a guess. The grid is drawn in your browser, nothing uploaded.
Frequently asked questions
What is the difference between column-gap and row-gap?
column-gap sets the space between columns and row-gap the space between rows. The shorthand gap: 16px 24px sets row then column.
Why use gap instead of margins?
Gap only adds space between items, never on the outer edges, so you do not need negative margins or :last-child fixes.
How many columns does the preview show?
The columns field sets repeat(n, 1fr) on nine numbered boxes, so you can see how gaps look at 2, 3, or 4 columns.
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