CSS Flexbox Generator

Build CSS Flexbox layouts visually. Adjust direction, justify, align, wrap & gap with live preview. Copy ready CSS. 100% browser-based. Free online.

}}> {Array.from({length:items}).map((_,i)=>({i+1}))} CSS copy(css)} className="mt-2">Copy CSS ); const steps = [ { "number": 1, "title": "Enter inputs", "description": "Provide the required values for the CSS Flexbox Generator." }, { "number": 2, "title": "Get the result", "description": "Output updates instantly as you type." }, { "number": 3, "title": "Copy or export", "description": "Copy the result to your clipboard with one click." }, { "number": 4, "title": "Reuse anywhere", "description": "Use the output in your project, document, or workflow." } ]; const faqs = [ { "question": "Is the CSS Flexbox Generator free?", "answer": "Yes. All Zubac Tools utilities are free with no sign-up." }, { "question": "Is my data sent to a server?", "answer": "No. Everything runs locally in your browser — your inputs never leave your device." }, { "question": "Does it work offline?", "answer": "Yes, after the first load the tool works without an internet connection." }, { "question": "Can I use it on mobile?", "answer": "Yes. The interface is responsive and works on phones, tablets, and desktops." } ]; const relatedTools = [ { "title": "CSS Grid Generator", "href": "/tools/css-grid-generator" }, { "title": "CSS Clamp Generator", "href": "/tools/css-clamp-generator" }, { "title": "Box Shadow Generator", "href": "/tools/box-shadow-generator" }, { "title": "CSS Unit Converter", "href": "/tools/css-unit-converter" } ]; const seoContent = "

Visual CSS Flexbox Generator

Configure every flex container property with live previews and copy the generated CSS. No sign-up, no upload, no tracking.

Properties Supported

  • flex-direction
  • justify-content
  • align-items
  • flex-wrap
  • gap

Why visual generators help

Flexbox has many interacting properties. A live preview removes guesswork — you see the effect of every change immediately, which makes learning and prototyping much faster.

Related: CSS Grid Generator, CSS Clamp Generator.

"; return ( CSS Flexbox Generator

Privacy-first • Runs locally in your browser

Build flexbox layouts visually and copy production-ready CSS.

{ui}

A frontend developer prototyping a responsive card row sets direction=row, justify=space-between, gap=16, and copies the resulting CSS straight into the project.

About CSS Flexbox Generator

Flexbox solved the vertical-centering meme and remains the right tool for one-dimensional layouts: navigation bars, button rows, card lists. This generator lets you toggle every flex property visually and see the result update live, then copy production-ready CSS.

Flexbox vs Grid

Flexbox when content flows in one direction — a row of nav links, a stack of cards, a sidebar next to a main panel. Use Grid when you need precise two-dimensional placement — a dashboard, a magazine layout, a calendar. They compose well: a grid cell can itself be a flex container, which is the typical pattern for real apps." }} />

justify-content vs align-items

controls horizontal. Remembering 'main = direction you set, cross = perpendicular' is the trick." }} />

The gap Property Replaces Margins

, which prevents shrinking below their content.

Should I use flex or grid for a card list?

Flex for a single row that wraps. Grid if you need columns to align across rows.

What does flex: 1 mean?

Shorthand for

— grow, shrink, basis 0 — meaning the item takes equal share of remaining space.

Is the generated CSS production-ready?

Yes — paste directly into your stylesheet.