How to Create Custom Input File with Bootstrap 5 ?

Last Updated : 28 Nov, 2023

This article will show you how to create a custom input file using the Bootstrap 5 library. Bootstrap 5 has various styling file input classes and functionalities that can enhance the visual appearance of custom file input. There are two different approaches along with their implementation. In both conditions, uploading a single file and multiple files from the local drive to the application.

Using Bootstrap Custom File Input with Button

Here, we have used the input-group which wraps the file input and a button. Then the file input is styled using the form-control class. Also, we have used the Modal component to provide feedback to the user when the file is successfully uploaded. Here, the single file upload is been handled by the file input.

Example: In this example, we will be creating a custom input file with Bootstrap 5 with Button.

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <meta charset="UTF-8"> 
    <meta name="viewport" content= 
        "width=device-width, initial-scale=1"> 
    <title>Custom Input File</title> 
    <link href= 
"https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" 
        rel="stylesheet"> 
</head> 
  
<body> 
    <div class="container mt-5"> 
        <h1 class="text-success"> 
            GeeksforGeeks 
        </h1> 
          
        <h3 class="mb-4"> 
            Approach 1: Using Bootstrap Custom  
            File Input with Button 
        </h3> 
          
        <div class="input-group mb-3"> 
            <input type="file" class="form-control" id="customFile"> 
            <button class="btn btn-primary" 
                type="button" data-bs-toggle="modal"
                data-bs-target="#uploadModal">Upload</button> 
        </div> 
  
        <div class="modal fade" id="uploadModal" 
            tabindex="-1" aria-labelledby="uploadModalLabel"
            aria-hidden="true"> 
            <div class="modal-dialog"> 
                <div class="modal-content"> 
                    <div class="modal-header"> 
                        <h5 class="modal-title" 
                            id="uploadModalLabel"> 
                            Upload Successful 
                        </h5> 
                        <button type="button" 
                            class="btn-close" 
                            data-bs-dismiss="modal" 
                            aria-label="Close"> 
                        </button> 
                    </div> 
                    <div class="modal-body"> 
                        Your file has been successfully uploaded. 
                    </div> 
                    <div class="modal-footer"> 
                        <button type="button" 
                            class="btn btn-secondary" 
                            data-bs-dismiss="modal"> 
                            Close 
                        </button> 
                    </div> 
                </div> 
            </div> 
        </div> 
    </div> 
    <script src= 
"https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"> 
    </script> 
</body> 
  
</html>

Output:

Output1

Using Bootstrap Input Group with Icon

Here, we have used the input-group class along with the icon using the input-group-text class. There is an icon through which the user can upload multiple files in the application. We have used JavaScript to display the uploaded images on the screen in a proper layout.

Example: In this example, we will be creating a custom input file with Bootstrap 5 with Icon.

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <meta charset="UTF-8"> 
    <meta name="viewport" content= 
        "width=device-width, initial-scale=1"> 
    <title>Custom Input File</title> 
    <link href= 
"https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css"
        rel="stylesheet"> 
    <link href= 
"https://cdnjs.cloudflare.com/ajax/libs/bootstrap-icons/1.11.2/font/bootstrap-icons.min.css"
        rel="stylesheet"> 
</head> 
  
<body> 
    <div class="container mt-5"> 
        <h1 class="text-success"> 
            GeeksforGeeks 
        </h1> 
          
        <h3 class="mb-4"> 
            Approach 2: Using Bootstrap Input Group with Icon 
        </h3> 
          
        <div class="input-group mb-3"> 
            <label class="input-group-text" for="customFile"> 
                <i class="bi bi-file-earmark-image"></i> 
            </label> 
            <input type="file" class="form-control visually-hidden" 
                id="customFile" accept="image/*" multiple 
                onchange="showFiles(this)"> 
            <button class="btn btn-success" type="button" 
                onclick="document.getElementById('customFile').click()"> 
                Choose Files 
            </button> 
        </div> 
  
        <div class="mt-3"> 
            <div class="row" id="imagePreviews"></div> 
        </div> 
    </div> 
  
    <script src= 
"https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"> 
    </script> 
      
    <script> 
        function showFiles(input) { 
            const previewsContainer = 
                document.getElementById('imagePreviews'); 
                  
            previewsContainer.innerHTML = ''; 
            const files = input.files; 
            for (let i = 0; i < files.length; i++) { 
                const file = files[i]; 
                const reader = new FileReader(); 
                reader.onload = function (e) { 
                    const preview = document.createElement('div'); 
                    preview.classList.add('col-md-4', 'mb-3'); 
                    preview.innerHTML = ` 
            <img src="${e.target.result}" alt="Preview" class="img-fluid rounded"> 
            <div class="text-center mt-2"> 
              <span class="badge bg-secondary">${file.name}</span> 
            </div> 
          `; 
                    previewsContainer.appendChild(preview); 
                }; 
                reader.readAsDataURL(file); 
            } 
        } 
    </script> 
</body> 
  
</html>