HTML <button> formenctype Attribute

❮ HTML <button> tag


A form with two submit buttons. The first submit button submits the form data with default character encoding, and the second submits the form data without character encoding:

<form action="/action_page_binary.asp" method="post">
  <label for="fname">First name:</label>
  <input type="text" id="fname" name="fname" value="StÃ¥le"><br><br>
  <button type="submit">Submit with character encoding</button>
  <button type="submit" formenctype="text/plain">Submit without character encoding</button>
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Definition and Usage

The formenctype attribute specifies how form-data should be encoded before sending it to a server. This attribute overrides the form's enctype attribute.

The formenctype attribute is only used for buttons with type="submit".

Browser Support

The numbers in the table specify the first browser version that fully supports the attribute.

formenctype 9.0 10.0 4.0 5.1 11.5


<button type="submit" formenctype="value">

Attribute Values

Value Description
application/x-www-form-urlencoded Default. All characters will be encoded before sent
multipart/form-data No characters are encoded (use this when you are using forms that have a file upload control)
text/plain Spaces are converted to "+" symbols, but no characters are encoded

❮ HTML <button> tag