CSS Grid/Flexbox Generator
Visual layout builder for CSS Grid and Flexbox with real-time preview and code generation
Layout Builder
Live Preview
CSS Code
.container {
display: grid;
grid-template-columns: repeat(3, 1fr);
grid-template-rows: auto;
gap: 1rem;
justify-items: stretch;
align-items: stretch;
justify-content: start;
align-content: start;
}
.item-1 {
}
.item-2 {
}
.item-3 {
}
.item-4 {
}
.item-5 {
}
.item-6 {
}
HTML Code
<div class="container"> <div class="item-1">Item 1</div> <div class="item-2">Item 2</div> <div class="item-3">Item 3</div> <div class="item-4">Item 4</div> <div class="item-5">Item 5</div> <div class="item-6">Item 6</div> </div>
Tips & Best Practices
CSS Grid is perfect for 2D layouts. Use it for complex page layouts, card grids, and precise positioning with rows and columns.
Use responsive breakpoints to create layouts that adapt seamlessly to different screen sizes. Test your layout on mobile, tablet, and desktop.
Start with a preset layout and customize it to match your needs. Presets include common patterns like header/sidebar/main, card grids, and navigation bars.
How to create CSS Grid and Flexbox layouts visually?
Master modern CSS layout techniques with our comprehensive CSS Grid and Flexbox generator that transforms complex layout creation into an intuitive visual experience. This professional-grade tool empowers developers and designers to build responsive, production-ready layouts through an interactive drag-and-drop interface that generates clean, optimized CSS code instantly. Whether you're crafting enterprise web applications, responsive websites, or mobile-first interfaces, our layout builder supports both CSS Grid for sophisticated two-dimensional layouts and Flexbox for streamlined one-dimensional arrangements.
Experience the power of visual layout design with real-time preview capabilities that let you see every change instantly as you adjust grid columns, row configurations, gap spacing, and alignment properties. Our comprehensive control panel provides precise management of all CSS Grid properties including grid-template-columns with fractional units, auto-fit for responsive designs, and grid-template-areas for semantic layouts. For Flexbox enthusiasts, enjoy complete control over flex-direction, flex-wrap, justify-content, align-items, and gap properties that make creating flexible, adaptive layouts effortless.
Streamline your development workflow with our extensive library of professionally designed layout presets spanning common patterns like header-sidebar-main architectures, responsive card grids with auto-fit columns, navigation bar layouts with space-between alignment, form layouts with consistent spacing, and the classic holy grail layout. Each preset serves as a perfect starting point that you can customize to match your specific design requirements, saving valuable development time while ensuring best practices are followed.
Enhance your productivity with advanced features including layout history with unlimited undo/redo functionality, responsive breakpoint controls for mobile-tablet-desktop testing, visual grid line overlay for precise alignment, and one-click CSS and HTML code generation. The tool produces clean, well-formatted code that follows modern CSS standards and is fully compatible with all major browsers including Chrome, Firefox, Safari, and Edge. Export your layouts as ready-to-use CSS code or complete HTML snippets that integrate seamlessly into any web project or framework.
Features
- Visual CSS Grid and Flexbox layout builder with drag-and-drop interface
- Real-time preview with instant visual feedback
- Complete control over CSS Grid properties (template-columns, rows, areas, gap)
- Full Flexbox property management (direction, wrap, justify, align)
- Responsive design testing with mobile, tablet, and desktop breakpoints
- Pre-built layout presets for common patterns and use cases
- Clean CSS and HTML code generation with one-click copying
- Layout history with unlimited undo/redo functionality
- Visual grid line overlay for precise positioning
- Professional layout patterns and best practices
How to use
- Choose between CSS Grid or Flexbox layout type based on your needs
- Configure layout properties using the intuitive visual controls panel
- Add and position layout items using the Add Item button
- Adjust grid columns, rows, gaps, and alignment properties in real-time
- Preview your layout across different breakpoints (mobile, tablet, desktop)
- Fine-tune your design with visual grid lines for precise positioning
- Copy the generated CSS code or use a preset as starting point
Tips & Best Practices
- All processing happens in your browser — no data is sent to any server.
- Use the copy button to quickly transfer results to your clipboard.
- The tool works offline once loaded — no internet connection required for processing.
- Check the FAQ section below for answers to common questions.
- Share this tool with colleagues using the social sharing buttons.
FAQ
What's the difference between CSS Grid and Flexbox?
CSS Grid is designed for two-dimensional layouts with rows and columns, making it perfect for complex page layouts, card grids, and precise positioning. Flexbox is designed for one-dimensional layouts (either row or column), ideal for navigation bars, form layouts, and flexible content distribution in a single direction.
Can I create responsive layouts with this tool?
Yes! The tool includes responsive breakpoint controls that let you test and preview your layouts on mobile (320px), tablet (768px), and desktop (1024px) screen sizes. You can see exactly how your layout adapts to different devices.
How do I use the generated CSS code?
Simply click the Copy CSS button to copy the generated code to your clipboard, then paste it into your stylesheet or style attribute. The code is clean, well-formatted, and follows modern CSS best practices with proper browser compatibility.
What layout presets are available?
The tool includes presets for common layouts like header/sidebar/main architectures, responsive card grids with auto-fit, navigation bars with space-between, form layouts with consistent spacing, holy grail layouts, and centered content patterns. Each preset can be customized to your needs.
Can I undo changes to my layout?
Yes! The tool includes full layout history with unlimited undo/redo functionality. You can experiment freely and revert any changes. Your layout history is automatically saved as you work.
Is the generated code compatible with all browsers?
Yes! The generated CSS uses modern CSS Grid and Flexbox properties that are fully supported in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. The code follows current web standards and best practices.
What's the best way to learn CSS Grid and Flexbox?
Start with the preset layouts to understand common patterns. Use the visual controls to see how each property affects the layout in real-time. The tool includes helpful hints explaining when to use Grid vs Flexbox and best practices for responsive design.
Can I add custom properties to layout items?
The tool generates base layout styles. You can easily add custom properties like colors, borders, shadows, and typography to the generated code. Each layout item has its own CSS class for easy customization.
How do I create a responsive card grid?
Use the CSS Grid layout with grid-template-columns set to 'repeat(auto-fit, minmax(250px, 1fr))'. This creates a responsive grid that automatically adjusts the number of columns based on available space.
What's grid-template-areas and how do I use it?
Grid-template-areas lets you create semantic grid layouts by naming areas like 'header', 'sidebar', 'main', and 'footer'. Check out the 'Header Sidebar Main' preset to see this in action. It's perfect for defining page structure.
How do I make items span multiple columns or rows?
In CSS Grid, you can use grid-column and grid-row properties. For example, grid-column: 1 / 3 spans columns 1-2, or grid-column: span 2 spans 2 columns. The tool generates these properties for each item, making it easy to create complex layouts.
When should I use CSS Grid vs Flexbox?
Use CSS Grid when you need a two-dimensional layout with both rows and columns (like page layouts, dashboards, image galleries). Use Flexbox when you need a one-dimensional layout in a single direction (like navigation menus, toolbars, card content alignment). For complex layouts, you can combine both!
Can I export my layout as HTML and CSS?
Yes! The tool generates both clean CSS code and HTML structure. Click the Copy CSS button to get the stylesheet code, and the HTML output shows the complete markup. Both are production-ready and follow modern web standards.
How do I center content both horizontally and vertically?
Use the 'Centered Content' preset, or for Flexbox: set justify-content: center and align-items: center. For CSS Grid: use place-items: center or set justify-items: center and align-items: center. The visual preview shows the result instantly.
What's the difference between gap, column-gap, and row-gap?
The gap property sets spacing between all items (both rows and columns). column-gap controls only horizontal spacing between columns, while row-gap controls only vertical spacing between rows. Use gap for uniform spacing, or use column-gap and row-gap separately for different horizontal and vertical spacing.
Can I use this tool for learning CSS layouts?
Absolutely! This tool is perfect for learning because you can see how each property affects the layout in real-time. Try the presets to understand common patterns, then experiment with the controls. The generated CSS code shows exactly what properties create each effect, helping you learn by doing.