Cloudflare Workers is a serverless computing platform that allows developers to run small pieces of code, known as 'workers,' directly on Cloudflare’s global network. This enables websites and applications to automate tasks, handle requests, and deliver content closer to users without managing traditional servers. By executing code at the network edge, Cloudflare Workers can improve performance, enhance security, and reduce latency for web services. It is commonly used for tasks like API handling, custom routing, and content modification, making web development more efficient and scalable.