CSS Grid Generator

The CSS Grid Generator is a free, browser-based tool that builds two-dimensional CSS Grid layouts visually: you set the number of columns and rows, choose track units, adjust the gaps and alignment, and it produces the exact grid-template-columns, grid-template-rows, and alignment CSS you need, alongside matching HTML markup you can paste straight into a project.

Grid is the most powerful layout system CSS has ever shipped, but its many properties and unit types make it easy to lose track of what a value actually does. Watching the preview change as you tweak a setting turns abstract rules into something you can see, which is by far the fastest way to internalize how the grid works.

What Is CSS Grid?

CSS Grid is a two-dimensional layout module that positions elements into rows and columns at the same time. Where older techniques handled a single axis, Grid lets you define a full matrix of tracks and then place items into it, with precise control over spacing and alignment on both axes. It is supported in every modern browser and is the standard choice for page skeletons, dashboards, card galleries, and complex responsive components.

The two anchor properties are grid-template-columns and grid-template-rows, which define the size of each track. Tracks can use flexible fr units, fixed px, percentages, content-based auto, or a responsive minmax() inside repeat() — all of which this generator exposes as simple dropdowns.

How to Use the CSS Grid Generator

1. Set the number of columns and rows and pick a unit for each track (fr, px, %, auto, minmax, or repeat).
2. Adjust column-gap and row-gap to control the spacing between tracks.
3. Choose justify-items and align-items to align content inside each cell, and justify-content and align-content to distribute the whole grid within its container.
4. Use Add item and Remove to change how many boxes fill the grid and watch the live preview update instantly.
5. Copy the generated CSS and HTML from the tabbed output and drop them into your stylesheet and page.

Why Use a Visual Grid Builder?

• Instant feedback: every change is reflected in the live preview, so you learn by seeing rather than guessing.
• Clean output: the generated CSS uses readable repeat() syntax and sensible defaults you can edit further.
• Both halves included: you get the container CSS and the matching item markup, not just a fragment.
• Zero setup: it runs entirely in your browser with no sign-up, no upload, and nothing saved on a server.

Grid Versus Flexbox: When to Use Which

Grid and flexbox solve overlapping but distinct problems. Reach for Grid when you are laying out in two dimensions at once — rows and columns that need to line up, like a page shell or a gallery. Reach for flexbox when you are distributing items along a single axis, such as a navigation bar or a toolbar; if that is your case, the CSS Flexbox Generator is the better companion. In practice real interfaces mix both: a Grid page skeleton whose individual regions use flexbox internally.

Styling the Grid Further

Once the structure is in place, the visual polish usually comes from other properties. You can soften each cell with the CSS Border Radius Generator, add depth to cards with the CSS Box Shadow Generator, and fill panels with a smooth background using the CSS Gradient Generator. To pick consistent track and item colors that match your palette, the HTML Color Picker gives you hex, RGB, and HSL values to drop into the generated rules.

Frequently Asked Questions

What does the CSS Grid Generator do?

It lets you configure a CSS Grid layout visually — columns, rows, track units, gaps, and alignment — and outputs the ready-to-use CSS and HTML with a live preview, so you can copy a working grid into your project in seconds.

What is the difference between fr, px, and minmax units?

An fr unit represents a fraction of the free space so tracks flex to fill the container, px sets a fixed size, and minmax(min, 1fr) gives a track a minimum size while letting it grow — the pattern most used for responsive grids.

What is the difference between justify-items and justify-content?

justify-items aligns the content inside each individual cell along the row axis, while justify-content distributes the entire set of grid tracks within the container when there is leftover space.

Should I use CSS Grid or Flexbox?

Use Grid for two-dimensional layouts where rows and columns align together, and flexbox for one-dimensional rows or columns of items. Many layouts combine the two, using Grid for the overall structure and flexbox inside each region.

Is this tool free and private?

Yes. The CSS Grid Generator is completely free and runs entirely in your browser. Nothing you configure is uploaded or stored on a server.