The internet never sleeps, which means you can stare at a brightly lit screen around the clock, potentially moving you with your sleep and putting strain on your eyes. Turn off the lights by activating dark mode in your browser.
Many popular mobile apps offer darker color schemes, but on the Web, the color theme of each site is determined by the site's developer. Still, you can make the browsing experience easier on the eyes by changing the color of the menu pages or playing with some experimental features. Here's how to do it in Chrome, Firefox, Safari, Edge and Opera.