Checkbox

Preview

About

Checkbox with a "spring pop" animation when checked/unchecked. There's also KasyCheckboxTile for a full-width list row with a larger tap area.

• value / onChanged: checked state and callback (passing null to onChanged disables the control).
• label / description: text next to the box, via KasyControlField internally.
• isInvalid: error styling (red tones).
• semanticLabel: accessible name when there's no label (box-only checkbox).
• style (KasyCheckboxStyle): full visual control — size, shape (roundedSquare default or circle), activeColor/activeGradient, inactiveColor, borderColor, checkColor, checkedIcon/uncheckedIcon (cross-fading between the two), borderWidth, iconPop (icon "pops" when checked).
• States: default, invalid, disabled (when onChanged is null).

Last updated on 08/23/2026