Checks and radios

Create consistent cross-browser and cross-device checkboxes and radios with our completely rewritten checks component.

Approach

Browser default checkboxes and radios are replaced with the help of .form-check, a series of classes for both input types that improves the layout and behavior of their HTML elements, that provide greater customization and cross browser consistency. Checkboxes are for selecting one or several options in a list, while radios are for selecting one option from many.

Structurally, our <input>s and <label>s are sibling elements as opposed to an <input> within a <label>. This is slightly more verbose as you must specify id and for attributes to relate the <input> and <label>. We use the sibling selector (~) for all our <input> states, like :checked or :disabled. When combined with the .form-check-label class, we can easily style the text for each item based on the <input>’s state.

Our checks use custom Bootstrap icons to indicate checked or indeterminate states.

Checks

<div class="form-check">
  <input class="form-check-input" type="checkbox" value="" id="checkDefault">
  <label class="form-check-label" for="checkDefault">
    Default checkbox
  </label>
</div>
<div class="form-check">
  <input class="form-check-input" type="checkbox" value="" id="checkChecked" checked>
  <label class="form-check-label" for="checkChecked">
    Checked checkbox
  </label>
</div>

Indeterminate

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

<div class="form-check">
  <input class="form-check-input" type="checkbox" value="" id="checkIndeterminate">
  <label class="form-check-label" for="checkIndeterminate">
    Indeterminate checkbox
  </label>
</div>
document.addEventListener('DOMContentLoaded', function () {
  const checkbox = document.getElementById('checkIndeterminate');
  if (checkbox) {
    checkbox.indeterminate = true;
  }
});

Disabled checkboxes

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. 

<div class="form-check">
  <input class="form-check-input" type="checkbox" value="" id="checkIndeterminateDisabled" disabled>
  <label class="form-check-label" for="checkIndeterminateDisabled">
    Disabled indeterminate checkbox
  </label>
</div>
<div class="form-check">
  <input class="form-check-input" type="checkbox" value="" id="checkDisabled" disabled>
  <label class="form-check-label" for="checkDisabled">
    Disabled checkbox
  </label>
</div>
<div class="form-check">
  <input class="form-check-input" type="checkbox" value="" id="checkCheckedDisabled" checked disabled>
  <label class="form-check-label" for="checkCheckedDisabled">
    Disabled checked checkbox
  </label>
</div>
document.addEventListener('DOMContentLoaded', function () {
  const checkbox = document.getElementById('checkIndeterminateDisabled');
  if (checkbox) {
    checkbox.indeterminate = true;
  }
});

Radios

<div class="form-check">
  <input class="form-check-input" type="radio" name="radioDefault" id="radioDefault1">
  <label class="form-check-label" for="radioDefault1">
    Default radio
  </label>
</div>
<div class="form-check">
  <input class="form-check-input" type="radio" name="radioDefault" id="radioDefault2" checked>
  <label class="form-check-label" for="radioDefault2">
    Default checked radio
  </label>
</div>

Disabled radios

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. 

<div class="form-check">
  <input class="form-check-input" type="radio" name="radioDisabled" id="radioDisabled" disabled>
  <label class="form-check-label" for="radioDisabled">
    Disabled radio
  </label>
</div>
<div class="form-check">
  <input class="form-check-input" type="radio" name="radioDisabled" id="radioCheckedDisabled" checked disabled>
  <label class="form-check-label" for="radioCheckedDisabled">
    Disabled checked radio
  </label>
</div>

Switches

A switch has the markup of a custom checkbox but uses the .form-switch class to render a toggle switch. Consider using role="switch" to more accurately convey the nature of the control to assistive technologies that support this role. In older assistive technologies, it will simply be announced as a regular checkbox as a fallback. Switches also support the disabled attribute. 

<div class="form-check form-switch">
  <input class="form-check-input" type="checkbox" role="switch" id="switchCheckDefault">
  <label class="form-check-label" for="switchCheckDefault">Default switch checkbox input</label>
</div>
<div class="form-check form-switch">
  <input class="form-check-input" type="checkbox" role="switch" id="switchCheckChecked" checked>
  <label class="form-check-label" for="switchCheckChecked">Checked switch checkbox input</label>
</div>
<div class="form-check form-switch">
  <input class="form-check-input" type="checkbox" role="switch" id="switchCheckDisabled" disabled>
  <label class="form-check-label" for="switchCheckDisabled">Disabled switch checkbox input</label>
</div>
<div class="form-check form-switch">
  <input class="form-check-input" type="checkbox" role="switch" id="switchCheckCheckedDisabled" checked disabled>
  <label class="form-check-label" for="switchCheckCheckedDisabled">Disabled checked switch checkbox input</label>
</div>

Native switches

Progressively enhance your switches for mobile Safari (iOS 17.4+) by adding a switch attribute to your input to enable haptic feedback when toggling switches, just like native iOS switches. There are no style changes attached to using this attribute in Bootstrap as all our switches use custom styles. 

<div class="form-check form-switch">
  <input class="form-check-input" type="checkbox" value="" id="checkNativeSwitch" switch>
  <label class="form-check-label" for="checkNativeSwitch">
    Native switch haptics
  </label>
</div>

Be sure to read more about the switch attribute on the WebKit blog. Safari 17.4+ on macOS and iOS both have native-style switches in HTML while other browsers simply fall back to the standard checkbox appearance. Applying the attribute to a non-Bootstrap checkbox in more recent versions of Safari will render a native switch.

Sized Controls

Adjust the size of controls using form-check-input-sm for smaller controls or form-check-input-lg for larger ones.

Sized Checkboxes
Sized Radio Buttons
Sized Switches
<div class="row g-4">
<!-- Sized Checkboxes -->
<div class="col-lg-6">
  <h6 class="mb-3">Sized Checkboxes</h6>
  <div class="form-check form-check-xs mb-2">
    <input class="form-check-input" type="checkbox" id="xsCheck" checked>
    <label class="form-check-label" for="xsCheck">Extra small checkbox</label>
  </div>
  <div class="form-check form-check-sm mb-2">
    <input class="form-check-input" type="checkbox" id="smCheck" checked>
    <label class="form-check-label" for="smCheck">Small checkbox</label>
  </div>
  <div class="form-check mb-2">
    <input class="form-check-input" type="checkbox" id="defaultCheck" checked>
    <label class="form-check-label" for="defaultCheck">Default checkbox</label>
  </div>
  <div class="form-check form-check-lg mb-2">
    <input class="form-check-input" type="checkbox" id="lgCheck" checked>
    <label class="form-check-label" for="lgCheck">Large checkbox</label>
  </div>
  <div class="form-check form-check-xl">
    <input class="form-check-input" type="checkbox" id="xlCheck" checked>
    <label class="form-check-label" for="xlCheck">Extra large checkbox</label>
  </div>
</div>

<!-- Sized Radios -->

<div class="col-lg-6">
  <h6 class="mb-3">Sized Radio Buttons</h6>
  <div class="form-check form-check-xs mb-2">
    <input class="form-check-input" type="radio" name="sizedRadio" id="xsRadio" checked>
    <label class="form-check-label" for="xsRadio">Extra small radio</label>
  </div>
  <div class="form-check form-check-sm mb-2">
    <input class="form-check-input" type="radio" name="sizedRadio" id="smRadio">
    <label class="form-check-label" for="smRadio">Small radio</label>
  </div>
  <div class="form-check mb-2">
    <input class="form-check-input" type="radio" name="sizedRadio" id="defaultRadio">
    <label class="form-check-label" for="defaultRadio">Default radio</label>
  </div>
  <div class="form-check form-check-lg mb-2">
    <input class="form-check-input" type="radio" name="sizedRadio" id="lgRadio">
    <label class="form-check-label" for="lgRadio">Large radio</label>
  </div>
  <div class="form-check form-check-xl">
    <input class="form-check-input" type="radio" name="sizedRadio" id="xlRadio">
    <label class="form-check-label" for="xlRadio">Extra large radio</label>
  </div>
</div>

<!-- Sized Switches -->

<div class="col-12">
  <h6 class="mb-3">Sized Switches</h6>
  <div class="form-check form-switch switch-xs mb-2">
    <input class="form-check-input" type="checkbox" role="switch" id="xsSwitch" checked>
    <label class="form-check-label" for="xsSwitch">Extra small switch</label>
  </div>
  <div class="form-check form-switch switch-sm mb-2">
    <input class="form-check-input" type="checkbox" role="switch" id="smSwitch" checked>
    <label class="form-check-label" for="smSwitch">Small switch</label>
  </div>
  <div class="form-check form-switch mb-2">
    <input class="form-check-input" type="checkbox" role="switch" id="defaultSwitch" checked>
    <label class="form-check-label" for="defaultSwitch">Default switch</label>
  </div>
  <div class="form-check form-switch switch-lg mb-2">
    <input class="form-check-input" type="checkbox" role="switch" id="lgSwitch" checked>
    <label class="form-check-label" for="lgSwitch">Large switch</label>
  </div>
  <div class="form-check form-switch switch-xl">
    <input class="form-check-input" type="checkbox" role="switch" id="xlSwitch" checked>
    <label class="form-check-label" for="xlSwitch">Extra large switch</label>
  </div>
</div>
</div>

Default (stacked)

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

<div class="form-check">
  <input class="form-check-input" type="checkbox" value="" id="defaultCheck1">
  <label class="form-check-label" for="defaultCheck1">
    Default checkbox
  </label>
</div>
<div class="form-check">
  <input class="form-check-input" type="checkbox" value="" id="defaultCheck2" disabled>
  <label class="form-check-label" for="defaultCheck2">
    Disabled checkbox
  </label>
</div>
<div class="form-check">
  <input class="form-check-input" type="radio" name="exampleRadios" id="exampleRadios1" value="option1" checked>
  <label class="form-check-label" for="exampleRadios1">
    Default radio
  </label>
</div>
<div class="form-check">
  <input class="form-check-input" type="radio" name="exampleRadios" id="exampleRadios2" value="option2">
  <label class="form-check-label" for="exampleRadios2">
    Second default radio
  </label>
</div>
<div class="form-check">
  <input class="form-check-input" type="radio" name="exampleRadios" id="exampleRadios3" value="option3" disabled>
  <label class="form-check-label" for="exampleRadios3">
    Disabled radio
  </label>
</div>

Inline

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

<div class="form-check form-check-inline">
  <input class="form-check-input" type="checkbox" id="inlineCheckbox1" value="option1">
  <label class="form-check-label" for="inlineCheckbox1">1</label>
</div>
<div class="form-check form-check-inline">
  <input class="form-check-input" type="checkbox" id="inlineCheckbox2" value="option2">
  <label class="form-check-label" for="inlineCheckbox2">2</label>
</div>
<div class="form-check form-check-inline">
  <input class="form-check-input" type="checkbox" id="inlineCheckbox3" value="option3" disabled>
  <label class="form-check-label" for="inlineCheckbox3">3 (disabled)</label>
</div>
<div class="form-check form-check-inline">
  <input class="form-check-input" type="radio" name="inlineRadioOptions" id="inlineRadio1" value="option1">
  <label class="form-check-label" for="inlineRadio1">1</label>
</div>
<div class="form-check form-check-inline">
  <input class="form-check-input" type="radio" name="inlineRadioOptions" id="inlineRadio2" value="option2">
  <label class="form-check-label" for="inlineRadio2">2</label>
</div>
<div class="form-check form-check-inline">
  <input class="form-check-input" type="radio" name="inlineRadioOptions" id="inlineRadio3" value="option3" disabled>
  <label class="form-check-label" for="inlineRadio3">3 (disabled)</label>
</div>

Reverse

Put your checkboxes, radios, and switches on the opposite side with the .form-check-reverse modifier class. 

<div class="form-check form-check-reverse">
  <input class="form-check-input" type="checkbox" value="" id="reverseCheck1">
  <label class="form-check-label" for="reverseCheck1">
    Reverse checkbox
  </label>
</div>
<div class="form-check form-check-reverse">
  <input class="form-check-input" type="checkbox" value="" id="reverseCheck2" disabled>
  <label class="form-check-label" for="reverseCheck2">
    Disabled reverse checkbox
  </label>
</div>

<div class="form-check form-switch form-check-reverse">
  <input class="form-check-input" type="checkbox" id="switchCheckReverse">
  <label class="form-check-label" for="switchCheckReverse">Reverse switch checkbox input</label>
</div>

Without 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. 

<div>
  <input class="form-check-input" type="checkbox" id="checkboxNoLabel" value="" aria-label="...">
</div>

<div>
  <input class="form-check-input" type="radio" name="radioNoLabel" id="radioNoLabel1" value="" aria-label="...">
</div>

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

<input type="checkbox" class="btn-check" id="btn-check" autocomplete="off">
<label class="btn btn-primary" for="btn-check">Single toggle</label>

<input type="checkbox" class="btn-check" id="btn-check-2" checked autocomplete="off">
<label class="btn btn-primary" for="btn-check-2">Checked</label>

<input type="checkbox" class="btn-check" id="btn-check-3" autocomplete="off" disabled>
<label class="btn btn-primary" for="btn-check-3">Disabled</label>
<input type="checkbox" class="btn-check" id="btn-check-4" autocomplete="off">
<label class="btn" for="btn-check-4">Single toggle</label>

<input type="checkbox" class="btn-check" id="btn-check-5" checked autocomplete="off">
<label class="btn" for="btn-check-5">Checked</label>

<input type="checkbox" class="btn-check" id="btn-check-6" autocomplete="off" disabled>
<label class="btn" for="btn-check-6">Disabled</label>

Radio toggle buttons

<input type="radio" class="btn-check" name="options" id="option1" autocomplete="off" checked>
<label class="btn btn-secondary" for="option1">Checked</label>

<input type="radio" class="btn-check" name="options" id="option2" autocomplete="off">
<label class="btn btn-secondary" for="option2">Radio</label>

<input type="radio" class="btn-check" name="options" id="option3" autocomplete="off" disabled>
<label class="btn btn-secondary" for="option3">Disabled</label>

<input type="radio" class="btn-check" name="options" id="option4" autocomplete="off">
<label class="btn btn-secondary" for="option4">Radio</label>
<input type="radio" class="btn-check" name="options-base" id="option5" autocomplete="off" checked>
<label class="btn" for="option5">Checked</label>

<input type="radio" class="btn-check" name="options-base" id="option6" autocomplete="off">
<label class="btn" for="option6">Radio</label>

<input type="radio" class="btn-check" name="options-base" id="option7" autocomplete="off" disabled>
<label class="btn" for="option7">Disabled</label>

<input type="radio" class="btn-check" name="options-base" id="option8" autocomplete="off">
<label class="btn" for="option8">Radio</label>

Outlined styles

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



<input type="checkbox" class="btn-check" id="btn-check-outlined" autocomplete="off">
<label class="btn btn-outline-primary m-1" for="btn-check-outlined">Single toggle</label><br>

<input type="checkbox" class="btn-check" id="btn-check-2-outlined" checked autocomplete="off">
<label class="btn btn-outline-secondary m-1" for="btn-check-2-outlined">Checked</label><br>

<input type="radio" class="btn-check" name="options-outlined" id="success-outlined" autocomplete="off" checked>
<label class="btn btn-outline-success m-1" for="success-outlined">Checked success radio</label>

<input type="radio" class="btn-check" name="options-outlined" id="danger-outlined" autocomplete="off">
<label class="btn btn-outline-danger m-1" for="danger-outlined">Danger radio</label>
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