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Free CSS Grid Generator Online - TestMu AI (Formerly LambdaTest)

Design grid layouts visually in your browser. Set row/col count, configure tracks and spacing gaps, and interactively build item spans to export clean CSS Grid styling code and HTML markup instantly.

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Presets:

Container Settings

Column Tracks
Col 1:
Col 2:
Col 3:
Col 4:
Row Tracks
Row 1:
Row 2:
Row 3:

Workspace (Click cells to span items)

Click a cell for Start boundary, then click another for End boundary.
Header1/5 col, 1/2 row
Sidebar1/2 col, 2/4 row
Main Content2/5 col, 2/3 row
Footer2/5 col, 3/4 row
Grid Items
Col:/
Row:/
Col:/
Row:/
Col:/
Row:/
Col:/
Row:/

ConvertGenerate Style

Reset Reset

Output

Adjust the controls, add your grid items, and click Generate Style.

What is the CSS Grid generator?

The CSS Grid generator is a free online developer tool that allows you to visually design 2D layouts using the CSS Grid system. CSS Grid is one of the most powerful layout modules available in CSS, but manually configuring column rules, row heights, visual templates, and gaps can be complicated.

Our visual layout editor simplifies this process. You can define the number of columns and rows, slide gaps dynamically, select classic starting presets, and drag elements on the visual canvas. Once satisfied, copy the matching stylesheet and HTML code directly to integrate the design into your page.

How to use the CSS Grid generator?

Building structured responsive layouts with our generator takes only a few steps. Follow these instructions:

  • Define Container Track Setup: Set your row and column counts. Choose widths and heights using standard fractions (1fr), viewport values, pixels, or automatic scaling rules.
  • Adjust Spacing Gaps: Move the row-gap and column-gap range sliders to adjust gutters between items visually.
  • Interactively Draw Grid Items: Click and drag your cursor over cell blocks inside the preview grid to draw item regions. Use the panel controls to name items or adjust start and end track lines.
  • Export Styles and Markup: Check the generated CSS and HTML structures in the output panels. Copy the code or download the files.

Features of the CSS Grid generator

Our web interface provides extensive design tools to build layout skeletons quickly:

  • Drag-to-Draw Canvas: Click, hold, and drag your cursor across grid rows and columns to define layout regions visually.
  • Presets Gallery: Apply classic responsive layout structures like Holy Grail, Dashboard, or classic 3-Column setups with one click.
  • Explicit Track Width Control: Specify exact sizing parameters for rows and columns individually using absolute or relative CSS units.
  • Secure Client-Side Calculations: Layout parameters are handled inside your browser. No styles or codes are sent to external databases.

Benefits of the CSS Grid generator

Designing visually accelerates front-end development. The primary benefits of using our builder include:

  • Zero CSS Overhead: Eliminates manual calculations for fractional spans, positioning grid lines, and spelling track area definitions.
  • Streamlined Design Flow: Prototype layout templates visually before committing HTML tags to code editor files. Pair with our sibling tools such as the HEX to RGB converter to streamline asset designs.
  • Code Consistency: Produces clean, standards-compliant CSS stylesheets. Test your stylesheet outputs using the CSS Validator or verify layout tags using the HTML Tester to keep site standards clean.

This utility is maintained by TestMu AI, creators of a comprehensive automated testing platform. Our visual designer helps web developers construct responsive page layouts with complete precision.

Frequently Asked Questions (FAQs)

What is CSS Grid and when should I use it?

CSS Grid is a two-dimensional layout system that handles both rows and columns simultaneously. You should use it for structural web layouts (like dashboards, headers, sidebars, or page sections) where elements need alignment along vertical and horizontal lines.

Is the CSS Grid Generator free to use?

Yes, the CSS Grid Generator is completely free to use online with no signup, limits, or configurations required. Design layouts visually and generate clean HTML/CSS instantly. This tool is built and maintained by TestMu AI.

What is the 'fr' unit in CSS Grid tracks?

The 'fr' unit represents a fraction of the remaining free space inside the grid container. For example, columns specified as '1fr 2fr' will allocate twice as much of the container's free space to the second column as the first.

Can I overlap items inside the grid layout?

Yes. By defining grid-row and grid-column area spans that intersect, items can overlap inside a container. Setting z-index determines the stacking order of overlapping items.

When should I choose Grid over Flexbox?

Choose CSS Grid when planning complex two-dimensional layouts where elements align across both axes. Choose Flexbox for one-dimensional layouts where items align primarily in a single direction, such as navigation links or button groups.

Is my generated CSS and HTML secure?

Yes. All grid calculations, visual rendering coordinates, and stylesheet exports are processed locally in your browser. No layout data is uploaded to remote servers, keeping your code structures private.

What are visual grid builder presets?

Presets are pre-configured layouts (like Holy Grail layout or dashboard layouts) that set row/column counts and sizes automatically. They serve as a quick starting point to customize web layouts without entering dimensions manually.

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World’s largest virtual agentic engineering & quality conference

WHENAUG 19-21
WHEREVirtual · Global
Register Now