Visually define and preview responsive column layouts. Set number of columns, gap size, and width proportions (fractional, pixel, or percentage). Export clean CSS (Grid or Flex) for immediate use.
Set from 1 up to 12 columns to fit your design needs.
Define spacing between columns in px, rem, or % units.
Use equal fractions (1fr), fixed (px), or percentage widths per column.
Toggle output between CSS Grid (`grid-template-columns`) or Flexbox (`flex` basis) syntax.
Copy full CSS snippet for your chosen layout instantly.