CSS Grid Generator
Build CSS Grid layouts visually. Define columns, rows, gaps, alignment and copy the generated CSS instantly.
.container {
display: grid;
grid-template-columns: 1fr 1fr 1fr;
gap: 8px 8px;
}What is CSS Grid Generator?
The CSS Grid Generator is a visual builder for CSS Grid layouts. CSS Grid is the most capable two-dimensional layout system in CSS, enabling you to define both columns and rows simultaneously and place items precisely within the resulting grid. Despite its power, writing grid CSS from scratch — especially 'grid-template-columns', 'grid-template-rows', 'gap', 'justify-items', 'align-items', and the various placement shorthands — requires a solid understanding of the specification and can be time-consuming to iterate.
This tool gives you a live canvas where you can specify the number of columns and rows, set their sizes using fixed units, fractions ('fr'), percentages, or 'auto', and define the gap between cells. Alignment controls for both the grid container and individual items are exposed through dropdowns so you can experiment with 'justify-content', 'align-content', 'justify-items', and 'align-items' without memorising all valid keyword combinations.
As you adjust the layout, the grid preview updates immediately. The generated CSS is shown in full at all times, covering both the container rules and representative child placement declarations. You can copy the complete output and paste it straight into your project, saving the time you would otherwise spend writing and debugging grid syntax manually. This tool is valuable for frontend developers learning grid, experienced engineers who want to prototype a layout quickly, and designers translating a mockup into code without guessing at fraction values.
How to Use CSS Grid Generator
- Define columns and rows
Set the number of columns and rows, then specify sizes using fr units, px, %, or auto for each track.
- Set gap and alignment
Adjust the column and row gaps and choose alignment values for items and the grid container.
- Preview the grid layout
The live canvas updates instantly to show the exact grid you have defined, including gaps and cell proportions.
- Copy the generated CSS
Click Copy to get the complete CSS Grid code for the container and paste it into your stylesheet.
Key Benefits
See your grid rendered in real time — columns, rows, and gaps — before writing a single line of CSS.
Configure track sizes, gaps, justification, and alignment for both the container and its children.
Generated code covers all container properties in a clean, copy-ready format you can drop into any project.
Iterate on column and row definitions visually rather than editing numbers in a stylesheet and refreshing.
Frequently Asked Questions
The fr (fraction) unit represents a fraction of the available space in the grid container. For example, "1fr 2fr 1fr" creates three columns where the middle column is twice as wide as the others, and all three fill the container together.
justify-items aligns grid items within their individual cells along the row axis. justify-content aligns the entire grid within its container when the grid is smaller than the container.
Yes. Combine CSS Grid with media queries or use the repeat() function with auto-fill or auto-fit and minmax() to create fully responsive layouts without breakpoints.
No — they are complementary. Grid excels at two-dimensional layouts (rows and columns simultaneously). Flexbox is better for one-dimensional layouts (a single row or column). Many designs use both.