Design & Export Responsive CSS Grids
Interactively configure columns, rows, tracks, and gaps. Drag or tap to create named areas, and instantly export ready-to-use CSS, Tailwind CSS, or React JSX markup.
Interactive Visual Matrix
Drag or tap cellsGenerated Code Exporter
/* Container Grid Layout */
.grid-container {
display: grid;
grid-template-columns: 220px 1fr 200px;
grid-template-rows: 70px 1fr 60px;
gap: 16px;
grid-template-areas:
"header header header"
"sidebar content aside"
"footer footer footer";
}
/* Grid Child Areas */
.header {
grid-area: header;
}
.sidebar {
grid-area: sidebar;
}
.content {
grid-area: content;
}
.aside {
grid-area: aside;
}
.footer {
grid-area: footer;
}Complete CSS Grid Layout Cheatsheet & Best Practices
CSS Grid Layout is the most powerful 2-dimensional layout system available in modern browsers. It allows you to handle both rows and columns simultaneously, unlike Flexbox which is inherently 1-dimensional.
The Fraction Unit (`fr`)
The fr unit represents a fraction of the available free space in the grid container. For example, grid-template-columns: 1fr 2fr 1fr divides available width into 4 equal parts, allocating 50% to the middle column and 25% to the sides.
`minmax()` Function
The minmax(min, max) function establishes track sizing bounds. For example, minmax(200px, 1fr) ensures a sidebar will never shrink below 200px on narrow viewports while naturally expanding when extra space is available.
`grid-template-areas`
Assign semantic string names to your grid cells. This makes responsive redesigns effortless: just change the grid-template-areas string inside a media query without touching child HTML markup or coordinates!
When to Use CSS Grid vs Flexbox
| Feature | CSS Grid Layout | CSS Flexbox |
|---|---|---|
| Dimensionality | 2-Dimensional (Rows AND Columns) | 1-Dimensional (Row OR Column) |
| Layout Philosophy | Grid-first (Container defines the structure) | Content-first (Children dictate their own sizing) |
| Overlapping Items | Native support using grid line placement or z-index | Requires absolute positioning or negative margins |
| Ideal Use Cases | Page layouts, dashboards, bento grids, card galleries | Navbars, button groups, badge lists, form fields |
Frequently Asked Questions
Use repeat(auto-fit, minmax(260px, 1fr)). The browser will automatically wrap columns when they would drop below 260px, creating a fluid layout that fits any screen size smoothly without explicit breakpoint queries.
Both create as many columns as will fit. However, when there are fewer items than available space, auto-fit collapses empty tracks to 0px so items stretch to fill the row, whereas auto-fill reserves the empty tracks as blank spaces.
Yes, CSS Grid has over 98% global support across modern web browsers (Chrome, Safari, Firefox, Edge, iOS Safari, and Android Chrome). All code exported by this tool runs 100% natively without external polyfills.
Zero data retention. All layout calculations, visual rendering, and code generation execute 100% locally inside your web browser using client-side JavaScript. No cookies, trackers, or remote APIs are used.