Flexbox Generator
Build CSS Flexbox layouts visually — set direction, wrap, alignment and gaps, tune each item's grow, shrink and basis, and go responsive per breakpoint. Copy clean CSS or Tailwind. Everything runs in your browser.
Overview
This Flexbox generator makes CSS Flexbox visual and immediate. Set the flex-direction and wrap, then dial in justify-content, align-items and align-content while a real flex container renders live on the canvas. Give each item its own flex-grow, flex-shrink and flex-basis, adjust align-self and order, and set row and column gaps. When you need it to adapt, choose a breakpoint and override any container or item property for that screen; the tool writes the matching @media queries for you. Toggle the output between clean vanilla CSS and equivalent Tailwind classes — both come from the same model so they never disagree — and preview the result at mobile, tablet, desktop or any freeform width before copying. Everything runs in your browser: no account, no uploads, and it works offline.
Key Features
- Visual flexbox builder with a live, editable canvas that renders your real layout
- Control flex-direction, flex-wrap, justify-content, align-items and align-content
- Tune each item's flex-grow, flex-shrink, flex-basis, align-self and order
- Row and column gaps with an optional linked value
- Per-breakpoint overrides that emit real @media queries and Tailwind responsive prefixes
- Responsive live preview with mobile, tablet, desktop presets plus freeform drag-to-resize
- Copy clean vanilla CSS, the HTML markup, or equivalent Tailwind classes in one click
- Curated starter layouts (navbar, media object, split, pricing row and more)
- Works fully offline and adapts to light and dark mode
Common Use Cases
- Build navbars and toolbars — Lay out logos, links and actions with justify-content and gaps, then copy the CSS or Tailwind straight into your header.
- Align cards and media objects — Compose media objects, split panels and equal-width card rows with grow, shrink and basis, and see them wrap responsively.
- Author responsive flex layouts — Design a base row and override direction, wrap or alignment per breakpoint to control how content stacks on smaller screens.
- Learn Flexbox by seeing it — Connect each control to the generated flex, justify-content and align-items rules to understand how Flexbox actually behaves.
How It Works
Set the flow
Choose the direction and whether items wrap, then set how they are justified and aligned along both axes. The canvas renders your real flex container live.
Tune the items
Give each item its grow, shrink and basis, adjust align-self and order, and set the gap between items.
Make it responsive
Pick a breakpoint and override direction, wrap, alignment, gaps or any item property for that screen size. The matching @media queries are generated for you.
Copy the code
Switch between clean CSS and Tailwind output, preview it live at any device width, and copy the result — no sign-up and nothing uploaded.