Consumer-to-consumer eCommerce is an online version of flea markets and artisan markets. A C2C marketplace holds thousands of users, both sellers and buyers, and facilitates transactions between them.

It is also known as an artist or designer marketplace where one stakeholder offers their services (like designs or artwork), and the other buys products at a competitive price.

The only difference between the consumer-to-consumer marketplace model and B2B/B2C is that the seller is not necessarily a business entity. They are simultaneously both sellers – providing their services to shoppers and consumers – using the services of a third-party platform.