To let users upload files, we need the use of the <input type="file"> tag:

<input type="file" />

Now, I want to only allow images to be uploaded. So, to do that:

<input type="file" accept="image/*">

• Use image/png to accept .png images:

  <input type="file" accept="image/png" />
  

• Use image/jpg to accept .jpg images:

  <input type="file" accept="image/jpg" />
  

• Use image/jpeg to accept .jpeg images:

  <input type="file" accept="image/jpeg" />
  

This same thing goes for video and audio:

• For video:

  <input type="file" accept="video/*">
  

• For audio:

  <input type="file" accept="audio/*">
  

It can be also in a combination,

<input type="file" accept="image/*,video/*,audio/*">

Note: This is client-side and the file upload type can be changed. You need to configure and validate the MIME type in your server when the file is received.

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