Amazon Web Services (AWS) is an online service from Amazon that provides all sorts of tools and services to help people build websites and apps. The AWS servers are like giant computers that can store and provide access to data, run programs, and help with other tasks. AWS helps you do things like store data online, create websites, run email, host videos, and use computer programs. You can think of it like a giant library where anyone can borrow the tools they need to help them use the internet more effectively.