HTML

accept only image files upload html

<input type="file" name="myImage" accept="image/x-png,image/gif,image/jpeg" />

input file accept image

<input type="file" name="myImage" accept="image/png, image/gif, image/jpeg" />
<input type="file" name="myImage" accept="image/*" />

html make file input only images

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