CSS Flexbox Layout Generator
Learn and generate Flexbox layouts by toggling the real properties — direction, justify-content, align-items, wrap and gap — and watching sample items rearrange. Copy the CSS when the layout matches what you want.
- 100% free
- Private & safe
- Runs in your browser
Read our complete guide: CSS Flexbox vs CSS Grid: Complete Cheatsheet & Code Examples
Why use CSS Flexbox Generator?
CSS Flexbox Generator is a quick, no-nonsense developer utility that runs entirely client-side, so your code and data never leave your machine.
- Runs instantly in your browser — nothing to install, nothing uploaded.
- Completely free, with no account, no watermarks and no usage limits.
- Output: CSS for a flex container
- Pick a flex-direction.
- Works on any device — desktop, tablet and phone — and is fully keyboard accessible.
How to use CSS Flexbox Generator
- Pick a flex-direction.
- Choose justify-content and align-items.
- Set wrap and gap.
- Copy the generated flex container CSS.
Examples
- Centering items both ways.
- A spaced-between navigation row.
Supported formats & limits
- Output: CSS for a flex container
Limitations
- Covers container properties; per-item flex-grow/shrink is added by hand.
Frequently asked questions
Does it output item properties?
It focuses on the flex container; add flex-grow/shrink/basis to individual items as needed.
Is the preview accurate?
Yes — it uses real Flexbox in your browser, so what you see is what you get.
Uploaded anywhere?
No, it runs locally.
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