Disable scrolling on `<input type=number>`

$(document).on("wheel", "input[type=number]", function (e) {
    $(this).blur();
});

One event listener to rule them all

This is similar to @Simon Perepelitsa's answer in pure js, but a bit simpler, as it puts one event listener on the document element and checks if the focused element is a number input:

document.addEventListener("wheel", function(event){
    if(document.activeElement.type === "number"){
        document.activeElement.blur();
    }
});

If you want to turn off the value scrolling behaviour on some fields, but not others just do this instead:

document.addEventListener("wheel", function(event){
    if(document.activeElement.type === "number" &&
       document.activeElement.classList.contains("noscroll"))
    {
        document.activeElement.blur();
    }
});

with this:

<input type="number" class="noscroll"/>

If an input has the noscroll class it wont change on scroll, otherwise everything stays the same.

Test here with JSFiddle

Prevent the default behavior of the mousewheel event on input-number elements like suggested by others (calling "blur()" would normally not be the preferred way to do it, because that wouldn't be, what the user wants).

BUT. I would avoid listening for the mousewheel event on all input-number elements all the time and only do it, when the element is in focus (that's when the problem exists). Otherwise the user cannot scroll the page when the mouse pointer is anywhere over a input-number element.

Solution for jQuery:

// disable mousewheel on a input number field when in focus
// (to prevent Chromium browsers change the value when scrolling)
$('form').on('focus', 'input[type=number]', function (e) {
  $(this).on('wheel.disableScroll', function (e) {
    e.preventDefault()
  })
})
$('form').on('blur', 'input[type=number]', function (e) {
  $(this).off('wheel.disableScroll')
})

(Delegate focus events to the surrounding form element - to avoid to many event listeners, which are bad for performance.)

You can simply use the HTML onwheel attribute.

This option have no effects on scrolling over other elements of the page.

And add a listener for all inputs don't work in inputs dynamically created posteriorly.

Aditionaly, you can remove the input arrows with CSS.

input[type="number"]::-webkit-outer-spin-button, 
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
input[type="number"] {
    -moz-appearance: textfield;
}

<input type="number" onwheel="this.blur()" />