Freelancing is one of many ways to make money as a digital nomad. Digital nomads include:

Remote Employees: People who work for a company in any capacity but don’t have to commute to an office. This is the most direct way to go nomadic without significantly changing your day job.
Self-Employed Business Owners: Solopreneurs or people with a small team who work online in any capacity, from affiliate marketing to owning an Etsy shop.
Entrepreneurs: Starting a company, typically with investor backing.
Passive Income: Income from real estate, investments, online sales and much more