CSS Flexbox Generator
Generate flex container CSS with direction, wrapping, alignment and gap controls, plus a live numbered-item preview.
Set your values
Adjust the values, then calculate your result.
How to use CSS Flexbox Generator
- Choose direction and wrapping for the container.
- Adjust main-axis and cross-axis alignment plus the gap.
- Inspect the live layout and copy the CSS into your component.
Think in main and cross axes
Flex direction establishes the main axis. Justify-content distributes items along it, while align-items controls their cross-axis placement. Reversed directions change visual order without changing the underlying source order. Wrapping creates additional flex lines when fixed-size preview items no longer fit.
Use container rules as a starting point
The snippet styles the flex container; the preview gives items a fixed demonstration size. Your application’s child sizing, flex-grow, flex-shrink and basis rules affect the final result. This generator does not reorder DOM content or implement a full responsive layout system. Test long labels and narrow containers rather than relying only on the desktop preview.
Is Flexbox the same as CSS Grid?
They are different layout models. Use the separate Grid generator when you want explicit column tracks; this tool explores flex axes and item flow.
Is input uploaded?
Processing takes place in your browser. This tool does not send your input or selected files to a conversion API.