When I'm trying to view pixel art up close, chrome starts blurring the image. I want to make it so that even when the image is zoomed in, I can still see the pixels in crisp detail, not a blurred one.
This isn't possible directly from the browser.
The smoothing is applied via an algorithm and most modern browsers do similar and in IE, Firefox and Chrome there is no way to turn this off.
You do have other options, here are the 2 main points from the link above, both are Chrome addons.
You could apply the CSS code below in the browser, which will turn it off!