CSS Grid Generator

The CSS Grid Generator is a free online tool that visually design css grid layouts with named areas, presets, and live code output for css, tailwind, and html. It runs entirely in your browser with no installation or sign-up needed.

Click and drag across cells in the visual preview. Name the area first (or leave blank for auto-name). The CSS output includes grid-template-areas and class selectors.

Each column/row can use fr, px, %, auto, or minmax(min, max). minmax exposes min/max number inputs for responsive tracks.

Best-effort. Uniform fr tracks map to grid-cols-N; mixed units fall back to arbitrary values like grid-cols-[200px_1fr_200px]. CSS output is the authoritative source.

Yes, the CSS Grid Generator is 100% free with no registration, no hidden fees, and no usage limits. All processing happens locally in your browser, ensuring complete privacy.

Absolutely. The CSS Grid Generator processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.

Yes, the CSS Grid Generator is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.

No account or registration is needed. Simply open the CSS Grid Generator in your browser and start using it immediately. There are no sign-up walls or usage restrictions.

The CSS Grid Generator supports a wide range of popular formats and languages. Check the tool interface for the full list of supported options.

The CSS Grid Generator works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.

These three units control how each track is sized. The fr unit represents a fraction of the leftover space after fixed tracks are placed, so two columns set to 1fr each share the remaining width equally and stay flexible as the container resizes. A px value is a fixed pixel width that never changes, ideal for sidebars, rails, or headers that must hold their size. A % is measured against the container's own width or height, so a 25% column always takes a quarter regardless of content. A common pattern mixes them, like a 250px fixed sidebar beside a 1fr flexible main column. In this generator each column and row gets its own unit dropdown, so you can combine fr, px, %, and auto and watch the live preview and CSS update instantly as you experiment.

Use minmax() whenever a track needs to flex between two bounds instead of staying one fixed size. It takes a minimum and a maximum, so minmax(100px, 1fr) lets a column shrink no smaller than 100px but grow to fill leftover space when room allows. This is the backbone of responsive layouts: a sidebar can hold a readable minimum on narrow screens yet expand on wide ones without a media query. Fixed px is better only when a track must never move, such as a precise icon rail. In this tool, choosing minmax from a track's unit dropdown reveals dedicated min and max number inputs, so you set both bounds visually and the generated CSS writes the correct minmax(min, max) value. Try it on a column to see how the preview stretches and caps as you drag the browser width.

Both position children in a grid, but they read very differently. Line-based placement uses numbered grid lines, so a child spans grid-column: 1 / 3 and grid-row: 2 / 4, which is precise but forces you to count lines and re-count whenever tracks change. grid-template-areas instead gives rectangles human names like header, sidebar, and main, then places a child with a single grid-area: header. The structure becomes legible at a glance and far easier to rearrange, since you edit the named map rather than juggling line numbers. Named areas also keep markup self-documenting for teammates. This generator leans on areas: type a name, drag across cells to paint the region, and it emits the grid-template-areas block plus a class selector for each area, while still letting you fine-tune row and column start and end values numerically when you need that precision.

They sound alike but act on different things. justify-items aligns the content inside each grid cell along the row (inline) axis, so setting it to center centers every item within its own cell while the cells themselves stay put. justify-content aligns the whole set of tracks within the grid container when the columns do not fill all the available width, which is where distribution values like space-between, space-around, and space-evenly come in to spread the columns apart. The same pairing exists on the block axis as align-items versus align-content. In short, the -items properties move things inside cells, and the -content properties move the tracks inside the container. This generator exposes all four properties as dropdowns plus independent row and column gap sliders, so you can flip each one and immediately see how the layout shifts before copying the resulting CSS.

The quick rule is dimensions: Flexbox is one-dimensional, laying items along a single row or column, while CSS Grid is two-dimensional, controlling rows and columns at the same time. Reach for Flexbox when you have a line of items that should wrap or distribute along one axis, such as a navigation bar, a button group, or tags. Reach for Grid when you need a true page or component structure where elements must align across both axes, like a dashboard with a header, sidebar, main area, and footer. They are not rivals and often nest: a Grid defines the overall page skeleton, and Flexbox arranges the contents within an individual cell. Because Grid syntax is dense and easy to get subtly wrong, this generator lets you build the two-dimensional structure visually, paint named areas, and copy clean CSS, Tailwind, or HTML straight into your project.