What Is CSS Grid Generator?

CSS Grid Generator is a visual tool that helps you create CSS Grid layouts without writing code from scratch. Instead of manually typing grid properties, you design your layout by interacting with an intuitive grid canvas.

The tool provides a complete set of grid controls — columns, rows, gaps, alignment, and template areas — all in one place. As you make changes, the corresponding CSS and HTML code updates in real time, ready to copy into your project.

Who Is This For?

Web Developers

Quickly prototype grid layouts without memorizing syntax

Designers

Translate layout ideas into production-ready CSS code

Students

Learn how CSS Grid properties work together visually

Anyone

Get clean, standards-compliant grid code instantly

Key Capabilities

The generator covers the most commonly used CSS Grid features:

Grid Tracks

Define columns and rows with any CSS unit

Flexible units (fr)
Fixed pixels (px)
Auto-sizing
Advanced minmax()

Template Areas

Visually paint named regions on the grid canvas

Click and drag interface
Semantic naming
Color-coded regions

Gap Controls

Set row and column spacing independently

Pixel-perfect spacing
Independent row/column gaps
Real-time preview

Alignment

Configure all alignment properties visually

justify-items & align-items
justify-content & align-content
Visual button controls

Preset Layouts

Start with proven layout patterns

Holy Grail layout
Sidebar patterns
Dashboard grids
Gallery layouts

How to Use CSS Grid Generator

Choose a Starting Point

Pick one of the 5 preset layouts at the top of the controls panel, or start from the default 3×3 grid. Presets instantly configure columns, rows, and template areas for common layout patterns.

Pro tip: Starting with a preset saves time and provides a solid foundation for customization.

Configure the Grid Structure

Use the Grid Setup section to adjust your layout:

Click + or − to add or remove columns and rows (1 to 12)
Edit track values directly — type 1fr, 200px, auto, or any valid CSS value
Set row gap and column gap independently using the gap inputs

Paint Template Areas

Template areas let you name regions of your grid for semantic layout:

Select an area from the area list (or click + to create a new one)
Click or drag on grid cells in the preview to assign them to that area
Click a painted cell again (with the same area selected) to erase it

Each area gets a unique color so you can easily see the layout taking shape.

Adjust Alignment

Fine-tune how items are positioned within the grid using the Alignment section. Four properties are available: justify-items, align-items, justify-content, and align-content.

Smart output: Only non-default values appear in the generated code, keeping your CSS clean.

Copy the Code

Switch between the CSS and HTML tabs to see the generated code. Click the Copy button to copy the currently visible code to your clipboard.

The code is production-ready and follows modern CSS Grid best practices.

Features

Visual Grid Canvas

The interactive preview shows your grid layout in real time. Each cell is clickable and draggable — select an area and paint cells to define named grid regions. The canvas reflects your exact column widths, row heights, and gap settings.

Interactive design: See your changes instantly as you build your layout — no need to switch between code and preview.

Preset Layouts

Start fast with five built-in layout presets:

Holy Grail

Classic header, sidebar, content, and footer layout with fixed sidebars

Sidebar

Two-column layout with a fixed-width sidebar

Dashboard

Equal-sized grid panels for admin interfaces

Gallery

Multi-column grid without named areas, ideal for image galleries

Header-Footer

Single-column layout with header, content, and footer regions

Flexible Track Values

Each column and row track accepts any valid CSS grid value. Use fr units for flexible sizing, px for fixed widths, auto for content-based sizing, or advanced values like minmax(200px, 1fr).

Example Track Values

/* Flexible units */
grid-template-columns: 1fr 2fr 1fr;

/* Fixed widths */
grid-template-columns: 200px 400px 200px;

/* Mixed values */
grid-template-columns: 250px 1fr auto;

/* Advanced sizing */
grid-template-columns: minmax(200px, 1fr) 2fr minmax(150px, 300px);

Template Areas

Create named grid areas by painting cells on the canvas. Add, remove, and select areas from the area list. The tool generates proper grid-template-areas CSS with corresponding area class selectors.

Manual Coding

Traditional Method

Write grid-template-areas syntax
Count dots for empty cells
Manually create area classes
Debug alignment issues

Visual Painting

Grid Generator

Click and drag to paint areas
See layout in real time
Auto-generated CSS classes
Instant visual feedback

Gap and Alignment Controls

Set row and column gaps independently in pixels. Configure all four alignment properties — justify-items, align-items, justify-content, and align-content — with visual button groups.

Clean code output: Default values are automatically omitted from the output code, keeping your CSS minimal and maintainable.

Clean Code Output

The generator produces ready-to-use CSS with a .grid-container class and individual area classes. Switch to the HTML tab for a matching markup structure. Copy either output with one click.

Standards-compliant CSS Grid syntax
Semantic class naming
Minimal, optimized code
Ready for production use

Dark Mode

The tool fully supports dark mode, automatically adapting all colors, borders, and the code output block for comfortable use in any lighting condition.

Frequently Asked Questions

What track values can I use?

You can use any valid CSS Grid track value:

1fr — flexible fraction units
200px — fixed pixel values
auto — content-based sizing
50% — percentage values
min-content / max-content — intrinsic sizing
minmax(200px, 1fr) — responsive sizing with constraints
repeat(3, 1fr) — repeated track patterns

How do template areas work?

Template areas let you assign names to grid regions. Select an area from the list, then click or drag on canvas cells to "paint" them. The tool generates the grid-template-areas property and corresponding CSS classes automatically.

Each named area becomes a semantic region in your layout, making your HTML more readable and your CSS easier to maintain.

Can I have cells without an area?

Yes. Unpainted cells appear as a dot (.) in the generated grid-template-areas value, which is valid CSS Grid syntax for an empty cell.

This is useful when you want to create whitespace or leave certain grid positions empty for visual balance.

Why don't I see alignment properties in the CSS output?

The generator only outputs non-default alignment values to keep your CSS clean and minimal:

justify-items: stretch and align-items: stretch are CSS Grid defaults, so they are omitted
justify-content: start and align-content: start are also defaults
Change them to a different value and they will appear in the code

This approach follows CSS best practices by avoiding unnecessary declarations.

What is the maximum grid size?

You can create grids up to 12 columns × 12 rows (144 cells). This covers the vast majority of real-world layout needs.

Most practical web layouts use between 2-6 columns and 3-8 rows, so the 12×12 limit provides plenty of flexibility for complex designs.

Does this tool work on mobile?

Yes. The layout adapts to smaller screens, and the grid canvas supports touch painting — tap and drag to assign areas on phones and tablets.

All controls are touch-friendly and the interface automatically adjusts for optimal mobile usability.

Is my data stored anywhere?

No. Everything runs entirely in your browser. No grid configurations or generated code are sent to any server.

100% Private Your layouts and code remain completely private and secure on your device.