CSS Grid Generator: Build CSS Grid Layouts with a Visual Editor
Design CSS Grid layouts visually — define rows, columns, gaps, and item placement — and export clean, production-ready CSS code.
Try the free online tool
Runs entirely in your browser — no signup, no uploads.
CSS Grid is the most powerful layout system available in CSS, offering two-dimensional control over both rows and columns simultaneously. With features like named grid areas, the fr unit for flexible space distribution, and explicit placement of items into any cell in the grid, it can express layouts that previously required complex float or flexbox workarounds with just a handful of CSS properties. The challenge is that the mental model for grid — especially named areas and span syntax — takes time to internalize.
Our CSS Grid Generator provides a visual drag-and-drop canvas where you define your grid structure and see the corresponding CSS update live. Add columns and rows by clicking, resize them by dragging, set column and row gap values, and place items into specific grid areas by painting on the canvas. The generated CSS uses modern, clean syntax with grid-template-areas for named placement wherever applicable.
The output includes both the grid container CSS and the individual item CSS rules with grid-area, grid-column, and grid-row properties set appropriately. You can copy the output as a complete, self-contained HTML and CSS snippet, making it straightforward to drop into any project.
What Is CSS Grid?
CSS Grid Layout is a two-dimensional layout system that lets you arrange elements in rows and columns simultaneously. Unlike flexbox, which is primarily one-dimensional (either a row or a column), Grid allows you to position items precisely in both axes at once. This makes it ideal for page-level layouts, card grids, dashboards, and any design that requires alignment in two directions.
Grid works by defining a grid container with the display: grid property, then specifying the structure with grid-template-columns, grid-template-rows, and optionally grid-template-areas. Child elements of the container become grid items that are automatically placed into the grid, or explicitly placed using grid-column, grid-row, or grid-area properties.
The fr unit is CSS Grid's most useful feature for responsive design. fr represents a fraction of the available space in the grid container after fixed sizes are subtracted. Three columns defined as 1fr 2fr 1fr create a layout where the middle column is always twice as wide as the side columns, regardless of the container's total width.
How to Use This Tool
Build your grid layout step by step with the visual editor:
- 1
Define Columns and Rows
Click the + buttons on the right and bottom edges of the canvas to add columns and rows. Each new track starts at 1fr. Click a track header to set its size to a specific value — px, %, fr, auto, or min-content/max-content.
- 2
Set Gap Values
Use the column-gap and row-gap inputs above the canvas to set spacing between tracks. These map to the column-gap and row-gap CSS properties (formerly grid-column-gap and grid-row-gap).
- 3
Place Grid Items
Click and drag on the canvas to define a grid item's span. Items are labeled automatically with numbers. Click any item to rename it — the name becomes the grid-area identifier in the generated CSS.
- 4
Review the Generated CSS
The CSS panel shows the container rules with grid-template-columns, grid-template-rows, and grid-template-areas, followed by individual item rules with grid-area. Copy individual rules or the full block.
- 5
Export the Code
Click Export to download a complete HTML file with embedded CSS, or copy just the CSS to paste into your existing project. Use the Preview tab to see the layout rendered in a live iframe.
Common Use Cases
CSS Grid excels at a range of layout patterns that were previously difficult to achieve:
- Page-level layouts with distinct header, sidebar, main content, and footer regions using grid-template-areas for semantic, readable CSS
- Card grids that automatically fill available space with evenly sized columns using auto-fill or auto-fit with minmax() for built-in responsiveness
- Dashboard layouts where multiple widgets of different sizes must align precisely in both horizontal and vertical directions
- Magazine-style editorial layouts where content blocks span different numbers of columns and rows to create visual variety
- Form layouts that align labels and inputs in a consistent grid without relying on tables or complex margin adjustments
Tips and Best Practices
Write better grid CSS with these guidelines:
- Use grid-template-areas for any grid with named regions — it makes the layout self-documenting and lets you change the layout structure by rearranging ASCII art rather than hunting through item-specific rules
- Prefer fr units for flexible tracks and reserve px units for fixed-width elements like sidebars and navigation columns that should not flex with the viewport
- Use auto-fill with minmax() for responsive card grids: grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)) creates as many columns as fit without a media query
- Avoid explicit placement (grid-column: 3 / 5) for most items in large grids — prefer named areas, which are more robust when the grid structure changes
- Test grid layouts with the browser DevTools grid overlay, which shows line numbers, track sizes, and item placement visually, making debugging much faster than reading CSS alone
Frequently Asked Questions
What is the difference between CSS Grid and Flexbox?
CSS Grid is two-dimensional — it manages layout in both rows and columns simultaneously. Flexbox is one-dimensional — it manages layout along a single axis (row or column). Use Grid for page-level and multi-dimensional layouts; use Flexbox for components whose items flow in a single direction, like navigation bars, button groups, and form rows.
What does the fr unit mean in CSS Grid?
The fr unit represents one fraction of the available space in the grid container after fixed-size tracks are allocated. In a grid with columns defined as 1fr 2fr 1fr, the middle column receives twice as much of the remaining space as each side column. It is the primary tool for building flexible, proportional grid layouts.
How do I make a responsive grid without media queries?
Use repeat(auto-fill, minmax(min, 1fr)) or repeat(auto-fit, minmax(min, 1fr)). For example, grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)) creates as many columns as fit in the container at 200px minimum width, reflowing automatically as the viewport resizes.
What is the difference between auto-fill and auto-fit?
Both create as many columns as fit. The difference appears when there are fewer items than columns. auto-fill keeps empty track space, maintaining the grid structure. auto-fit collapses empty tracks and allows remaining items to grow and fill the space. auto-fit is generally preferred for card grids where you want items to fill the row.
How do I center an item within a grid cell?
Use justify-self: center on the item for horizontal centering, align-self: center for vertical centering, or place-self: center as a shorthand for both. To center all items in all cells, use justify-items: center and align-items: center on the grid container.
Can grid items overlap each other?
Yes. Grid items can be explicitly placed into the same cell or overlapping cells using grid-column and grid-row. Use z-index to control which item appears on top. This technique is useful for layering text over images and creating stacked card effects without absolute positioning.
Does CSS Grid work in all modern browsers?
Yes. CSS Grid has full support in all modern browsers since 2017. The features shown in this generator — including grid-template-areas, fr units, auto-fill, and minmax — are all well-supported. Legacy Internet Explorer (11 and below) supports an older, prefixed version of the spec with significant limitations.
Ready to use this tool?
Free, instant, no account required. Runs entirely in your browser.