CSS Flexbox & Grid Playground
A CSS Flexbox & Grid Playground is an interactive tool for assembling Flexbox or CSS Grid layouts via toggles and sliders that update a live preview in real time, with the corresponding CSS snippet generated for you to copy — all in-browser.
.container {
display: flex;
flex-direction: row;
flex-wrap: wrap;
justify-content: flex-start;
align-items: stretch;
align-content: stretch;
gap: 8px;
}About CSS Flexbox & Grid Playground
Switch between Flexbox and Grid modes. For Flexbox, control direction, wrap, justify-content, align-items, align-content, and gap, then add or remove flex items to see how align-self and order behave. For Grid, set columns and rows via `grid-template-columns`/`rows` shorthand, gaps, and item placement. The live preview updates as you change each property and the matching CSS is always one click from your clipboard.
What CSS Flexbox & Grid Playground does
- Switch between Flexbox and CSS Grid mode in one click
- Every Flexbox property (direction, wrap, justify-content, align-items, align-content, gap)
- Full Grid editor with grid-template-columns/rows shorthand and gaps
- Live preview updates as you change each property
- Generated CSS uses only evergreen-browser properties (no vendor prefixes)
- Layout state is encoded in the URL — bookmark or share to reproduce
When to reach for CSS Flexbox & Grid Playground
- Prototyping a one-row navbar layout in 30 seconds
- Debugging why a flex child refuses to wrap the way you expect
- Generating a quick Grid layout for a dashboard card row
- Teaching a teammate how align-items differs from align-content
How to use CSS Flexbox & Grid Playground
- 01
Pick Flexbox or Grid
Top-of-page toggle switches between the two layout systems and the corresponding controls.
- 02
Tweak properties
Every Flexbox / Grid property is a labeled toggle or selector — the live preview updates instantly.
- 03
Copy the CSS
The generated CSS sits alongside the preview. Click Copy to grab it.
When to use CSS Flexbox & Grid Playground vs alternatives
| Alternative | Use CSS Flexbox & Grid Playground when… | Use the alternative when… |
|---|---|---|
| Flexbox Froggy / Grid Garden | you want a working layout out the other end you can paste into production CSS. | you want to learn the rules through gamified exercises. |
| DevTools inspector | you are designing a new layout from scratch, not tweaking an existing one. | you are debugging an existing layout in a live page. |