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HTML < input> accept Attribute

Last Updated : 12 Jul, 2025

The HTML <input> accept attribute is used to control the type of files that can be selected for input, restricting the file selection to specific formats such as image/* for images or .pdf for PDF files.

Syntax:

<input accept = "file_extension | audio/* | video/* | image/* | media_type">

HTML


 <html>
  <body>
    <form>
      <label for="fileUpload">Upload an image file:</label>
      <input type="file" id="fileUpload" name="fileUpload" accept="image/*">
      <input type="submit" value="Submit">
    </form>
  </body>
</html>

The accept="image/*" attribute restricts the file input to accept only image files, enhancing user experience by filtering selectable files in the dialog.
The <input type="file"> element allows users to browse and select files from their device for upload.

Attribute Values:

Value Description

file_extension

Specify the file extension(s) like .gif, .jpg, .png, .doc) the user can pick from.

audio/*

The user can pick all sound files.

image/*

A valid media type, with no parameters. Look at IANA Media Types for a complete list of standard media types.

media_type

A valid media type without parameters.

More example of HTML <input> accept Attribute

HTML <input> accept Attribute html


 <html >
  <body>
    <form>
      <label for="imageUpload">Upload an image (JPEG or PNG):</label>
      <input type="file" id="imageUpload" name="imageUpload" accept=".jpeg, .jpg, .png">
      <input type="submit" value="Submit">
    </form>
  </body>
</html>

The accept attribute is set to .jpeg, .jpg, .png, allowing users to select image files with these specific extensions.
This ensures that only JPEG and PNG images can be selected for upload.

Styled File Input for PDF Documents HTML


 <html>
<head>
	<style>
		.file-input {
			display: inline-block;
			padding: 10px 20px;
			font-size: 16px;
			cursor: pointer;
			background-color: #4CAF50;
			color: white;
			border: none;
			border-radius: 4px;
		}
		.file-input:hover {
			background-color: #45a049;
		}
		#pdfUpload {
			display: none;
		}
	</style>
</head>
<body>
	<form>
		<label for="pdfUpload" class="file-input">Choose a PDF file</label>
		<input type="file" id="pdfUpload" name="pdfUpload" accept="application/pdf">
		<input type="submit" value="Submit">
	</form>
</body>
</html>

The file input is styled to appear as a button labeled "Choose a PDF file," enhancing the user interface.
The accept attribute is set to application/pdf, restricting file selection to PDF documents only.

Best Practices for Using the HTML <input> accept Attribute:

Specify Exact File Types: Clearly define acceptable file types using MIME types or file extensions to guide users in selecting appropriate files.
Implement Server-Side Validation: While the accept attribute provides a hint to users, always validate the file type on the server to ensure security and proper handling.
Provide User Instructions: Offer clear guidance or labels indicating the types of files accepted to enhance user experience and reduce errors.

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