Flexbox CSS Generator
The most intuitive way to build CSS Flexbox layouts. Adjust properties visually and get production-ready code instantly.
The Ultimate Visual Flexbox CSS Generator
In modern web design, **CSS Flexbox** (Flexible Box Layout) is the gold standard for creating responsive, dynamic layouts. However, mastering properties like flex-direction, justify-content, and align-items can be a steep learning curve.
Our Flexbox CSS Generator is a visual playground designed to bridge that gap. By manipulating properties in a real-time environment, you can visualize the impact of every line of code, ensuring your layouts are perfect before you even touch your stylesheet.
📐 Real-Time Layout Engine
See exactly how your items distribute. Whether it's a navigation bar or a complex grid, our visualizer updates instantly.
💻 Clean CSS Export
No more bloated code. Get perfectly formatted, production-ready CSS that you can copy and paste directly into your project.
📱 Responsive Testing
Experiment with wrapping behaviors and gap properties to see how your design behaves under different constraints.
How to Use the Flexbox Generator
- Configure Container: Start by setting the direction (Row or Column). This defines your 'Main Axis'.
- Align Content: Use
justify-contentto move items along the main axis andalign-itemsfor the cross axis. - Handle Wrapping: If you have many items, enable
flex-wrapto allow them to break into multiple lines. - Set Spacing: Use the
gapslider to add uniform spacing without needing margins on individual items. - Get Code: Review the generated CSS in the output box and click 'Copy' to use it.
Understanding Main vs. Cross Axis
Flexbox is all about axes. When flex-direction is row, your main axis is horizontal. When it's column, the main axis becomes vertical. This is why justify-content sometimes feels like it changes its behavior—it's always following the main axis!
Essential Flexbox Properties
- flex-grow: Controls how much an item should grow relative to others.
- flex-shrink: Defines if an item should shrink when space is limited.
- flex-basis: Sets the initial size of an item before growing/shrinking.
Frequently Asked Questions
When should I use Flexbox instead of CSS Grid?
Flexbox is ideal for 1D layouts (either a row OR a column), like navbars or item lists. CSS Grid is better for 2D layouts (rows AND columns simultaneously), like a full page structure.
Does this generator support 'gap'?
Yes! The gap property is a modern and clean way to add spacing between flex items. It is now widely supported in all evergreen browsers and included in our export.
Is Flexbox good for mobile-first design?
Absolutely. Flexbox makes it incredibly easy to reorder elements using the order property or switch from row (desktop) to column (mobile) with a single media query.