Generate CSS grid

Generate CSS Grid tracks, gaps, alignment, and named-area placement rules.

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ToolCSS Grid Generator
Input
Output
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How it works

Track sizes, repeat notation, gaps, alignment, and named areas become display:grid and child-placement declarations. Fractional tracks divide leftover space after fixed tracks and gaps.

  • repeat() and fr units express responsive layouts.
  • Explicit tracks remain available for asymmetric designs.

Worked example

Photo gallery grid (3x2)
Generate a 3-column, 2-row equal grid layout with 16px gaps
Input
											Columns: 3
Rows: 2
Column gap: 16
Row gap: 16
Column sizing: equal
Custom columns: 
Row sizing: auto
Custom rows: 
Align items: stretch
Justify items: stretch
Output
												/* Grid Container */
.grid-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, auto);
  column-gap: 16px;
  row-gap: 16px;
  align-items: stretch;
  justify-items: stretch;
}

/* Grid Items */
.grid-item {
  padding: 16px;
  background-color: #4a90d9;
  color: white;
  border-radius: 4px;
  text-align: center;
}

<!-- HTML -->
<div class="grid-container">
  <div class="grid-item">Item 1</div>
  <div class="grid-item">Item 2</div>
  <div class="grid-item">Item 3</div>
  <div class="grid-item">Item 4</div>
  <div class="grid-item">Item 5</div>
  <div class="grid-item">Item 6</div>
</div>

When to use this

Dashboards, forms, and responsive galleries generate grid layouts.

Edge cases

  • minmax() can overflow when its minimum is too large.
  • Placing a child outside declared tracks creates implicit tracks.
  • Percentage tracks plus gaps can exceed the container.

References