Grid Generator
100% LocalDesign CSS Grid templates and copy the CSS.
display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: auto; justify-items: stretch; align-items: stretch; gap: 12px;
Grid generator
Configure CSS Grid visually and copy the generated CSS. Runs locally.
Privacy note
This tool runs entirely in your browser. Your input is never uploaded, logged, or sent to AllDevToolsHub or anyone else, and it keeps working offline once the page has loaded.
How to Use Grid Generator
Set Grid Properties
Configure columns, rows, gap, template areas, and alignment.
Preview Layout
The visual grid preview updates as you change values.
Copy CSS
Copy the CSS Grid properties for your container and items.
Grid Generator: the essentials
The CSS Grid Generator is a visual builder for `grid-template-columns/rows`, gaps, and item placement with a live preview and copyable CSS. Skips the back-and-forth of guessing whether you want `repeat(auto-fit, minmax(200px, 1fr))` or `repeat(auto-fill, ...)` and what their actual difference is.
Key points
- Generates standard CSS and color values compatible with all modern browsers.
- Pixel-precise output exports production-ready CSS and design assets.
- All processing runs locally, design values and palettes never leave your machine.
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What is Grid Generator?
Frequently Asked Questions
Technical Deep Dive
Grid Generator
Set grid-template-columns/rows, gaps, and item alignment with a live preview and CSS output.
Pixel-Precise Output
Generates CSS, tokens, or assets that match what your design system expects.
Live Visual Preview
See changes the moment you make them, no copy-paste cycle between tool and IDE.
Copy-Paste Ready
Output is formatted for direct use in stylesheets, Tailwind configs, or Figma tokens.
The Mental Model
A grid container divides space into a 2D matrix of cells. You define the matrix; items take one or more cells.
This creates 3 columns and 3 rows. Items placed without explicit position auto-fill in row order.
The Container Properties
| Property | Purpose |
|---|---|
display: grid |
Activate Grid |
grid-template-columns |
Column tracks |
grid-template-rows |
Row tracks |
grid-template-areas |
Named regions |
gap / row-gap / column-gap |
Space between tracks |
justify-items |
Inline-axis alignment of items in cells |
align-items |
Block-axis alignment of items in cells |
justify-content |
Inline-axis alignment of tracks within container |
align-content |
Block-axis alignment of tracks within container |
grid-auto-flow |
row | column | dense, order of auto-placement |
grid-auto-columns / grid-auto-rows |
Size of implicit tracks |
The Item Properties
| Property | Purpose |
|---|---|
grid-column / grid-row |
Span specific lines |
grid-area |
Shorthand or named area |
justify-self / align-self |
Override container alignment |
Column Sizing Functions
minmax(min, max) lets you specify "no smaller than X, no larger than Y." Combined with repeat(auto-fit, ...), this is the modern responsive grid pattern.
The Responsive Card Grid in One Line
This produces:
- Wide screen (1200px): 4-5 cards per row
- Tablet (800px): 3 cards per row
- Mobile (400px): 1 card, stretched
- No media queries needed.
Before CSS Grid, this required Flexbox + media queries + math. Now it's three lines.
Named Areas Layout
The CSS literally looks like an ASCII layout. For page-level layouts, this is the most readable approach in any web technology.
For responsive layouts, redefine the areas at media queries:
Same elements, different visual order, no DOM changes.
Item Placement by Line Numbers
Lines number from 1 (left edge of first column) to N+1 (right edge of last column). Negative numbers count from the end: -1 is the last line.
Auto-Placement and Dense Packing
Without explicit grid-column / grid-row, items auto-place in row-major order, filling left to right then top to bottom.
With grid-auto-flow: dense, the algorithm backtracks to fill earlier gaps. Useful for masonry-like layouts where some items are wider than others:
Without dense, gaps appear. With dense, smaller items fill earlier slots, producing a tighter packed grid.
Subgrid
The inner grid inherits its parent's column tracks. This lets nested elements align to the parent's grid lines, essential for tables-of-tables layouts. Browser support: Firefox 71+, Safari 16+, Chrome 117+. As of 2024, viable for production with a flexbox fallback.
Privacy Note
The generator computes CSS strings from your input toggles and applies them to a preview element via inline styles. Nothing leaves your browser, the resulting CSS is yours to copy/paste into a stylesheet.