Upwork is a prominent online platform that connects freelancers with clients seeking various services. 

It operates as a marketplace where businesses can find independent professionals across diverse fields, including writing, graphic design, software development, and marketing.

Upwork was formed from the merger of two earlier platforms, eLance and oDesk, in 2015. It has since become one of the largest freelance marketplaces globally, boasting over 12 million active freelancers and 5 million client accounts.

The company’s comprehensive approach to remote work makes it a go-to platform for many seeking flexible employment options. Upwork serves as a significant player in the gig economy.

But Upwork appears to be using a controversial bidding system where job seekers have to pay for the chance to perhaps win an assignment. This is illegal in many, if not most, countries.