CSS Flexbox Generator
Build CSS Flexbox layouts visually — configure all flex properties and see a live preview, then copy the generated CSS.
What Does This Tool Do?
Configure all CSS Flexbox container properties visually (direction, wrap, justify-content, align-items, gap) with a live preview showing how items will be arranged.
Key Features
Live Preview
Items rearrange in real time as you change settings.
All Properties
Direction, wrap, justify, align and gap.
Copy CSS
Complete CSS for container and item.
Item Count
Preview with 2–6 items.
How to Use
- Set flex direction and wrap.
- Choose justify-content and align-items.
- Set the gap between items.
- Watch the live preview update, then copy the CSS.
Frequently Asked Questions
What is the difference between justify-content and align-items?▾
justify-content controls distribution along the main axis (the direction set by flex-direction). align-items controls alignment along the cross axis (perpendicular to the main axis).
When should I use Grid vs Flexbox?▾
Flexbox is best for one-dimensional layouts (a row or a column). Grid is best for two-dimensional layouts (rows AND columns simultaneously).
What does flex-wrap do?▾
By default flex items try to fit on one line. flex-wrap: wrap allows items to move to a new line when they run out of space.
Complete Guide to CSS Flexbox Generator
When To Use This Tool
Use CSS Flexbox Generator whenever you need fast, accurate output without installing software. This tool is designed for speed, clarity, and repeatable results for day-to-day work.
Best Practices for Accurate Results
- Double-check the format of your input before running the tool.
- Test with a small sample first, then process larger data.
- Use Related Tools to verify, convert, or transform the output.
Why Users Prefer AdeDX
AdeDX tools are browser-based, free to use, and built to work across desktop and mobile devices. Most processing happens directly in your browser for fast performance and improved privacy.