CSS grid layout tool for designing multi-column and multi-row web layouts without memorizing grid syntax. Configure tracks, gaps, and spanning areas visually, then copy the CSS output straight into your project. Fully free and browser-based with no account needed and no files uploaded.
The Grid Generator is a visual tool for building CSS Grid layouts. You specify the number of columns and rows, define the column and row sizing using fixed pixel values, percentages, or the fr (fractional) unit, and configure gap spacing between grid cells. The tool renders a live visual preview of the grid structure and generates the CSS grid-template-columns, grid-template-rows, and gap properties needed to implement it. CSS Grid is the most powerful layout system available in CSS, enabling two-dimensional layouts that were previously impossible without complex floats or JavaScript. The generator is useful for developers learning CSS Grid, designers communicating layout intent, and developers who need to quickly generate the boilerplate for a specific grid configuration.
CSS Grid revolutionized web layout when it achieved broad browser support in 2017, offering a native two-dimensional layout system that replaced the complex float-based and table-based approaches that had dominated web development for over a decade. The key concept that distinguishes Grid from Flexbox is that Grid manages layout in two dimensions simultaneously (columns and rows), while Flexbox manages layout in one dimension at a time (either a row or a column). This makes Grid ideal for overall page layout (header, sidebar, content, footer) and two-dimensional content grids (image galleries, card grids), while Flexbox remains better for one-dimensional UI components (navigation bars, button groups). The fr unit is the most powerful and distinctive feature of CSS Grid. fr represents a fraction of the available space in the grid container, distributed after non-flexible tracks are accounted for. grid-template-columns: 1fr 2fr 1fr creates three columns where the middle column is twice as wide as the outer columns, automatically adjusting as the container resizes. This eliminates the need for percentage calculations and produces inherently responsive layouts. The repeat() function simplifies the definition of repeating track patterns: grid-template-columns: repeat(3, 1fr) is equivalent to 1fr 1fr 1fr. Combined with auto-fill and minmax(), repeat() enables auto-responsive grids that adjust the number of columns based on available space: grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)) creates as many 250px-minimum columns as will fit, wrapping to new rows automatically without media queries.