Checkboxes
<div class="form-check"><input class="form-check-input" type="checkbox" value="" id="flexCheckDefault"><label class="form-check-label" for="flexCheckDefault">Default checkbox </label></div><div class="form-check"><input class="form-check-input" type="checkbox" value="" id="flexCheckChecked" checked><label class="form-check-label" for="flexCheckChecked">Checked checkbox </label></div>
Radio Buttons
<div class="form-check"><input class="form-check-input" type="radio" name="flexRadioDefault" id="flexRadioDefault1"><label class="form-check-label" for="flexRadioDefault1">Default radio </label></div><div class="form-check"><input class="form-check-input" type="radio" name="flexRadioDefault" id="flexRadioDefault2" checked><label class="form-check-label" for="flexRadioDefault2">Default checked radio </label></div>
Switches Button
<div class="form-check form-switch"><input class="form-check-input" type="checkbox" id="flexSwitchCheckDefault"><label class="form-check-label" for="flexSwitchCheckDefault">Default switch checkbox input</label></div><div class="form-check form-switch"><input class="form-check-input" type="checkbox" id="flexSwitchCheckChecked" checked><label class="form-check-label" for="flexSwitchCheckChecked">Checked switch checkbox input</label></div><div class="form-check form-switch"><input class="form-check-input" type="checkbox" id="flexSwitchCheckDisabled" disabled><label class="form-check-label" for="flexSwitchCheckDisabled">Disabled switch checkbox input</label></div><div class="form-check form-switch"><input class="form-check-input" type="checkbox" id="flexSwitchCheckCheckedDisabled" checked disabled><label class="form-check-label" for="flexSwitchCheckCheckedDisabled">Disabled checked switch checkbox input</label></div>