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How to make radio buttons in Bootstrap 5?

The radio buttons are used when there is a list of options and we need to choose only one option from the given list. The radio buttons can be created using form classes in general and sometimes we can use button groups to create them in Bootstrap 5. Let's see the examples.

Creating radio buttons using the form class

  • Each radio buttons are wrapped into the .form-check class
  • The <input> and <label> are used as sibling element .
  • Add .form-check-input class with type="radio" and name="flexradioDefault" within the <input> tag. An unique id is also added.
  • Add .form-check-label class within <label> along with for attribute which points to id of <input>.
  • Add .checked within <input> for checked radio buttons.
  • The radio buttons will be vertically stacked one after another.

Here is an example of creating radio buttons in bootstrap 5.

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap </title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/css/bootstrap.min.css" rel="stylesheet"> 
  <script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.9.2/dist/umd/popper.min.js" integrity="sha384-IQsoLXl5PILFhosVNubq5LC7Qb9DXgDA9i+tQ8Zj3iwWAwPtgFTxbJ8NT4GN1R8p" crossorigin="anonymous"></script>
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/js/bootstrap.min.js" integrity="sha384-Atwg2Pkwv9vp0ygtn1JAojH0nYbwNJLPhwyoVbhoPwBhjQPR5VtM2+xf0Uwh9KtT" crossorigin="anonymous"></script></head>
<body>
	<div class="form-check">
	  <input class="form-check-input" type="radio" name="flexRadioDefault" id="flexRadioDefault1">
	  <label class="form-check-label" for="flexRadioDefault1">
		 radio button 1
	  </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">
		radio button 2
	  </label>
	</div
</body>
</html>

Output:

Here is the output of the above program.

radio buttons using form

Inline radio buttons

To place the radio buttons horizontally in a single row, we can use the .form-check-inline class with the .form-check class. Here is an example of creating inline radio buttons.

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap </title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/css/bootstrap.min.css" rel="stylesheet"> 
  <script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.9.2/dist/umd/popper.min.js" integrity="sha384-IQsoLXl5PILFhosVNubq5LC7Qb9DXgDA9i+tQ8Zj3iwWAwPtgFTxbJ8NT4GN1R8p" crossorigin="anonymous"></script>
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/js/bootstrap.min.js" integrity="sha384-Atwg2Pkwv9vp0ygtn1JAojH0nYbwNJLPhwyoVbhoPwBhjQPR5VtM2+xf0Uwh9KtT" crossorigin="anonymous"></script></head>
<body>

	<div class="form-check form-check-inline">
	  <input class="form-check-input" type="radio" name="flexRadioDefault" id="flexRadioDefault1">
	  <label class="form-check-label" for="flexRadioDefault1">
		 radio button 1
	  </label>
	</div>
	<div class="form-check form-check-inline">
	  <input class="form-check-input" type="radio" name="flexRadioDefault" id="flexRadioDefault2" checked>
	  <label class="form-check-label" for="flexRadioDefault2">
		radio button 2
	  </label>
	</div
</body>
</html>

Output:

Here is the output of the inline radio buttons.

inline radio buttons

Radio buttons using button group

  • The radio buttons can be also created with the .btn class instead of .form-check-label. These radio buttons will be styled as buttons. Further, these radio buttons can be grouped with the .btn-group class.
  • Add .btn-radio class with type="radio" within<input> . Also add some unigue name to id and assign autocomplete="off". So the checkbox remains unmarked.
  • The <label> will be assigned with .btn class and for attribute will point to id of <input> element.
  • The checkboxes in the button group are placed in horizontal lines.

Here is an example to create radio buttons using a button group.

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap </title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/css/bootstrap.min.css" rel="stylesheet"> 
  <script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.9.2/dist/umd/popper.min.js" integrity="sha384-IQsoLXl5PILFhosVNubq5LC7Qb9DXgDA9i+tQ8Zj3iwWAwPtgFTxbJ8NT4GN1R8p" crossorigin="anonymous"></script>
  <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/js/bootstrap.min.js" integrity="sha384-Atwg2Pkwv9vp0ygtn1JAojH0nYbwNJLPhwyoVbhoPwBhjQPR5VtM2+xf0Uwh9KtT" crossorigin="anonymous"></script></head>
<body>
	<div class="btn-group" role="group" aria-label="Basic radio toggle button group">
	  <input type="radio" class="btn-check" name="btnradio" id="btnradio1" autocomplete="off" checked>
	  <label class="btn btn-outline-primary" for="btnradio1">Radio 1</label>

	  <input type="radio" class="btn-check" name="btnradio" id="btnradio2" autocomplete="off">
	  <label class="btn btn-outline-primary" for="btnradio2">Radio 2</label>

	  <input type="radio" class="btn-check" name="btnradio" id="btnradio3" autocomplete="off">
	  <label class="btn btn-outline-primary" for="btnradio3">Radio 3</label>
	</div>
</body>
</html>

Output:

Here is the output showing radio buttons using the button group.

radio button with button group

Conclusion

Here we have learned to create radio buttons using Bootstrap 5. The radio buttons can be aligned horizontally and vertically using form classes. The radio buttons can be added using button group classes.