A freelancer is an individual who offers services to clients on a contract basis, rather than being employed full-time by a single company. Freelancers work independently, often for multiple clients, and are typically hired for specific projects or tasks. They can work in various fields such as writing, graphic design, programming, marketing, and consulting. Freelancers have the flexibility to choose their clients, set their rates, and manage their schedules, but they are also responsible for their own taxes, benefits, and job security.