Build CSS Grid layouts with live controls for rows, columns, gaps and placement — then copy production-ready grid CSS straight to your clipboard. This free online tool runs entirely in your browser — no data is ever uploaded to a server. How to Use 1. Set the grid — rows, columns and gap sliders update the preview instantly. 2. Place items — each cell takes your placement rules from the inspector. 3. Tune responsive behavior — adjust template tracks per breakpoint. 4. Export — copy the finished CSS and paste it into any stylesheet. Example Choose 3 rows × 4 columns with a 16 px gap, make the center span 2 cells — the exported grid-template-areas is ready to drop into production.

An interactive Flexbox playground: set flex-direction, justify-content, align-items, flex-wrap, gap, and item count with a live preview — then copy the exact CSS. Fully client-side. This free online flexbox sandbox runs entirely in your browser — no data is ever uploaded to a server. (It is fully client-side: nothing you type is sent anywhere.) How to Use 1. Set flex-direction — row, row-reverse, column, or column-reverse. 2. Align and distribute — pick justify-content and align-items for main- and cross-axis placement. 3. Control wrapping — switch flex-wrap between nowrap, wrap, and wrap-reverse; tune gap and item count. 4. Copy the CSS — the matching rules update live and copy with one click. Example Set justify-content to space-between and switch to column — the items stack with the first pinned to the top and the last to the bottom. Add gap and more items and watch the preview reflow instantly, then copy the exact flex-direction / justify-content / align-items / flex-...