When you're trying to work without distraction but need a little background noise, or you're struggling to relax and fall asleep, you might like Noisli. It's a website and app that lets you pick different sounds to play, including rain, a fan, white noise, crickets, and more. Play multiple sounds at the same time if you want to get crazy. The coffee shop is the best— freelancers feeling lonely at their desks can just turn on a background hum of people talking and dishes clattering. Instant fake human contact. Try it out.