Checks and radios
Checkbox
Indeterminate

Checkboxes can utilize the :indeterminate pseudo class when manually set via JavaScript (there is no available HTML attribute for specifying it).

CheckboxDisabled

Add the disabled attribute and the associated <label>s are automatically styled to match with a lighter color to help indicate the input’s state.

Radios
RadiosDisabled

Add the disabled attribute and the associated <label>s are automatically styled to match with a lighter color to help indicate the input’s state.

Switches

A switch has the markup of a custom checkbox but uses the .form-switch class to render a toggle switch. Switches also support the disabled attribute.

SwitchesSizes
Checks and RadiosDefault layout (stacked)

By default, any number of checkboxes and radios that are immediate sibling will be vertically stacked and appropriately spaced with .form-check.

Checks and RadiosInline

Group checkboxes or radios on the same horizontal row by adding .form-check-inline to any .form-check.

Checks and RadiosWithout labels

Omit the wrapping .form-check for checkboxes and radios that have no label text. Remember to still provide some form of accessible name for assistive technologies (for instance, using aria-label). See the forms overview accessibility section for details.

Toggle buttons

Create button-like checkboxes and radio buttons by using .btn styles rather than .form-check-label on the <label> elements. These toggle buttons can further be grouped in a button group if needed.

Checkbox toggle buttons

Toggle buttonsRadio

Outlined styles

Different variants of .btn, such at the various outlined styles, are supported.