CSS Flexbox Layout Generator
Free online CSS flexbox generator. Visually build flexbox layouts and copy clean CSS flex container code instantly with no signup.
Tool Configuration Options
What is a CSS Flexbox Layout Generator?
The CSS Flexbox layout generator is a front-end developer utility that generates modern, cross-browser CSS Flexible Box Module (Flexbox) code. By configuring layout parameters—including flex-direction, justify-content, and align-items—it creates responsive 1-dimensional component alignments for navigation bars, card grids, media objects, and centered modal boxes. Web developers and UI designers use this tool to eliminate layout guesswork and generate production-ready CSS rules instantly.
Execution Privacy:Toolbrix processes this utility using🔒 Processed locally — CSS code generation runs client-side.
How to use this CSS Flexbox Layout Generator
Select Flex Direction: Choose between row (horizontal flow) or column (vertical flow) to define the primary main axis.
Adjust Justify Content: Set alignment along the main axis (flex-start, center, space-between, space-around, or flex-end).
Configure Align Items: Control cross-axis positioning (center, flex-start, stretch, baseline, or flex-end) for uniform element alignment.
Copy Production CSS: Click the Copy button to paste the generated flexbox rules directly into your stylesheet or CSS-in-JS component.
Frequently Asked Questions
Q:What is CSS Flexbox?
CSS Flexbox (Flexible Box Layout) is a W3C CSS layout module designed to align, distribute, and space child elements within a parent container dynamically, even when their sizes are unknown or variable.
Q:What is the difference between main axis and cross axis in Flexbox?
The main axis follows the direction set by flex-direction (horizontal for row, vertical for column). The cross axis runs perpendicular to the main axis.
Q:When should I use Flexbox instead of CSS Grid?
Flexbox is designed for 1-dimensional layouts (a single row or single column of items, such as navbars or button groups), while CSS Grid is designed for 2-dimensional layouts with rows and columns simultaneously.
Q:How do I center a div horizontally and vertically using Flexbox?
Apply display: flex; justify-content: center; align-items: center; to the parent container to achieve two-axis centering.
Q:What does "space-between" do in justify-content?
justify-content: space-between distributes child items evenly along the main axis, placing the first item against the start edge and the last item against the end edge.
Q:Is Flexbox supported across modern web browsers?
Yes. CSS Flexbox is supported natively across all modern web browsers including Chrome, Edge, Safari, Firefox, and mobile browsers with 99%+ global browser support.
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