Free · No signup · Instant code

CSS Grid Generator
Visual Layout Builder

Build responsive CSS grid layouts visually. Set columns, rows and gap — get clean, copy-ready CSS and HTML code instantly.

Live preview CSS + HTML output One-click copy Mobile responsive fr, px, % units
CSS Grid Generator Tool
Columns
3
Rows
3
Column Size
Row Size
Gap
px
Live Preview
About This Tool

What Is a CSS Grid Generator?

A CSS grid generator is a visual tool that lets you build CSS grid layouts without writing code from scratch. You set the number of columns, rows, and gap size — the CSS grid generator instantly produces clean, ready-to-use CSS and HTML that you can copy directly into your project.

CSS Grid is the most powerful layout system built into CSS. Unlike Flexbox, which controls elements along a single axis, a CSS grid controls both rows and columns simultaneously — making it ideal for full page layouts, dashboard designs, card grids, gallery layouts, and any two-dimensional arrangement of content.

This free CSS grid generator is built for developers, designers, and anyone learning CSS Grid who wants to prototype layouts visually and skip the trial-and-error of writing grid code manually.

How to Use This CSS Grid Generator

1
Set your columns — use the + / − buttons to choose how many columns your grid needs. Most layouts use 2–4 columns.
2
Set your rows — choose how many rows. You can always add more rows in your actual CSS, but setting the right number here helps preview the layout.
3
Choose column and row size — pick your unit (fr for flexible fractions, px for fixed, % for proportional) and set the value. Using 1fr for all columns makes them equal-width and fully responsive.
4
Set the gap — this controls the spacing between all grid cells. This becomes the CSS gap property in your output code.
5
Copy the code — switch between CSS, HTML, or CSS + HTML tabs and click Copy Code to grab the output, ready to paste into your project.

Key CSS Grid Properties Reference

Understanding these core CSS grid properties will help you customize the generated code for any layout scenario:

grid-template-columns
Defines the number and size of columns. This is the most important CSS grid property for controlling horizontal layout.
e.g. repeat(3, 1fr) → 3 equal columns
grid-template-rows
Defines the number and size of rows. Use auto to let rows size to their content height.
e.g. repeat(2, auto) → 2 content-height rows
gap
Sets spacing between all grid cells in both directions. Shorthand for row-gap and column-gap.
e.g. gap: 16px → 16px between all cells
display: grid
Activates the CSS Grid formatting context on a container element. All direct children become grid items.
e.g. display: grid → enables grid on container
fr unit
The fraction unit distributes available space proportionally. 1fr 2fr 1fr gives the middle column twice the space of the others.
e.g. 1fr 2fr → 1/3 and 2/3 of space
repeat()
Shorthand for repeating track definitions. repeat(4, 1fr) is equivalent to writing 1fr 1fr 1fr 1fr.
e.g. repeat(3, 1fr) = 1fr 1fr 1fr
grid-column
Controls how many columns a grid item spans. Use on individual items to create wider cells in your layout.
e.g. grid-column: span 2 → item takes 2 cols
grid-row
Controls how many rows a grid item spans vertically, useful for featured content or sidebar layouts.
e.g. grid-row: span 2 → item takes 2 rows

CSS Grid vs Flexbox — When to Use Each

CSS Grid and Flexbox are both powerful layout systems but designed for different purposes. The most common question developers have when using a CSS grid generator is whether they should be using Grid at all — or Flexbox instead.

FeatureCSS GridFlexbox
DimensionsTwo-dimensional (rows + columns simultaneously)One-dimensional (row OR column at a time)
Best forFull page layouts, dashboards, card grids, galleriesNavigation bars, button groups, card internals
Alignment controlPrecise placement on both axes at onceExcellent along the main axis
ResponsiveVery powerful with fr units and auto-fit/auto-fillNatural wrapping with flex-wrap
Browser supportAll modern browsers (97%+ global)All modern browsers (99%+ global)
Use together?Yes — Grid for outer page structure, Flexbox for inner component layout. They complement each other perfectly.

Common CSS Grid Layouts You Can Build

This CSS grid generator can produce the foundation code for all of these standard layout patterns:

Holy Grail Layout

Header, footer, main content, left sidebar, right sidebar. The classic web page structure.

Card Grid

Equal-width responsive cards in a multi-column grid. Blog posts, products, portfolio items.

Photo Gallery

Masonry-style or uniform grid of images with consistent gaps and responsive breakpoints.

Dashboard Layout

Data panels, charts, and widgets in a structured two-dimensional grid with varying cell spans.

Blog Layout

Featured hero post spanning full width, with supporting posts in a 3-column grid below.

Product Grid

E-commerce product listing with responsive 2–4 column grid that adapts to screen size.

Here are the exact CSS values to use in this CSS grid generator for the most common layouts:

/* Equal 3-column card grid */ .container { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; } /* Responsive grid — auto-fill, min 280px per column */ .container { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; } /* Holy grail layout */ .page { display: grid; grid-template-columns: 240px 1fr 200px; grid-template-rows: auto 1fr auto; gap: 16px; }

Frequently Asked Questions — CSS Grid Generator

What does a CSS grid generator do?
A CSS grid generator creates the CSS and HTML code for a grid layout based on the settings you choose visually — columns, rows, gap, and unit type. Instead of writing and debugging CSS grid code manually, you set the values in the tool and get clean, ready-to-use code instantly.
What is the fr unit in CSS Grid?
The fr (fraction) unit represents a share of the available space in the grid container. For example, grid-template-columns: 1fr 2fr 1fr creates three columns where the middle one gets twice as much space as the outer ones. fr is the best unit for responsive grids because columns automatically adjust to the container width.
How do I make a CSS grid responsive?
Use fr units instead of px for column widths — this makes columns scale proportionally. For a fully automatic responsive grid, use repeat(auto-fill, minmax(280px, 1fr)) which creates as many columns as will fit, each at least 280px wide. You can also add media queries to change the number of columns at different breakpoints.
What is the difference between gap, row-gap, and column-gap?
gap is the shorthand property that sets spacing between grid cells in both directions at once. row-gap controls only the vertical spacing between rows, and column-gap controls only the horizontal spacing between columns. Writing gap: 16px is equivalent to row-gap: 16px and column-gap: 16px together.
Does CSS Grid work in all browsers?
Yes. CSS Grid has full support in all modern browsers — Chrome 57+, Firefox 52+, Safari 10.1+, and Edge 16+, covering over 97% of global browser usage. No vendor prefixes are needed. The only browsers that don't support it are very old versions of Internet Explorer (IE 11 has partial support with an older spec).
Can I use CSS Grid and Flexbox together?
Absolutely, and this is actually the recommended approach. Use CSS Grid for the outer page or section layout (placing large regions like sidebar, main, header), and use Flexbox inside individual components (aligning items within a card, centering button text, building a nav bar). They are complementary tools, not competing ones.

More Free CSS Tools

Browse the full collection of free CSS grid generator companions and design tools:

Border Radius Generator Glassmorphism Generator PX to CM Converter PX to EM Converter PX to REM Converter All CSS Tools
Copied!
Scroll to Top