Flexbox Generator

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What is Flexbox Generator?
Free online CSS Flexbox generator. Visually set flex containers main axis, cross axis, alignment, and direction. Real-time preview, one-click CSS export. Suitable for rapid prototyping and layout debugging.
▶Use Cases4 scenarios
  • ◆Navigation bars
  • ◆Card layouts
  • ◆Centering
  • ◆Responsive components
▶How to Use4 steps
  1. 1Choose main/cross axis direction
  2. 2Set alignment
  3. 3Preview in real time
  4. 4Copy CSS code
▶Features4 features
  • ✓Visual controls
  • ✓Live preview
  • ✓Full property set
  • ✓CSS export
▶FAQ7 questions
What is the Flexbox Generator?
An online frontend tool. Input: flex direction, alignment, wrapping, and ordering. Output: the matching CSS with live preview. Use it for rapid prototyping and layout debugging.
When should I use Flexbox?
For 1D layouts like nav bars, button groups, and centering.
Should I use Flexbox or Grid?
Flexbox for 1D, Grid for 2D. They often work together.
When should I use Flexbox vs Grid?
Flexbox for 1D layouts (row or column), Grid for 2D layouts (rows and columns). They work great together.
justify-content vs align-items?
justify-content aligns along the main axis, align-items along the cross axis. Main axis is set by flex-direction.
Does flex-wrap work everywhere?
Yes. flex-wrap is supported in all modern browsers and IE11. It allows items to wrap to the next line.
What is flex-grow vs flex-shrink?
flex-grow controls how much an item grows with extra space. flex-shrink controls how much it shrinks when space is tight.