DramaFever.com and Viki.com are two popular online video streaming sites that allow users to watch Korean drama series for free. Founded by Koreans living in New York, DramaFever.com is mostly available in North America and several regions in Eurasia, while the Singapore-based Viki.com caters to more countries.
Both DramaFever.com and Viki.com have licensing deals with the three major broadcasting networks in South Korea. Both sites feature subtitled Korean drama series that are free to watch online. The dramas are available in segmented, low-definition videos interspersed with a few commercial interruptions.
KBS World, the official YouTube channel of the South Korean broadcasting network KBS, also releases subtitled episodes of Korean dramas aired by the network.