Visual CSS Flexbox Generator Online
Generate CSS Flexbox visually (justify-content, align-items, direction…), in your browser.
🔒 100% client-side — no data sent
Visually build your Flexbox layout and grab the ready-to-copy CSS code (justify-content, align-items, flex-direction and more). The preview updates live, 100% in your browser, with nothing to install. A fast way to understand and generate Flexbox CSS without memorizing every property.
What is it for?
- ▸ Center an element horizontally and vertically with Flexbox
- ▸ Quickly test justify-content and align-items with a live preview
- ▸ Generate the CSS for a navbar or a row of cards
- ▸ Learn how Flexbox works by tweaking options visually
FAQ
How do I center a div with Flexbox?
Set the container to display flex, then justify-content center and align-items center; the generator shows the live preview and the matching CSS to copy.
What is the difference between justify-content and align-items?
justify-content aligns items along the main axis (often horizontal) and align-items along the cross axis; the visual preview lets you see the effect of each instantly.
Is the generated CSS ready to use?
Yes, you copy the produced CSS and paste it straight into your stylesheet; it uses standard Flexbox properties compatible with all modern browsers.