Tribler is an open source peer-to-peer decentralized client with various features for watching videos online. The user interface of Tribler is very basic and focused on ease of use, instead of diversity of features. Tribler is based on the BitTorrent protocol and uses an overlay network for content searching, which makes the program operate independent of external websites and renders it immune to limiting external action, for example, government restraint. Due to this overlay network Tribler does not require an external website or indexing service to discover content. Tribler features include: video-only searching, experimental video streaming, and an integrated video player. Tribler is available for Linux, Windows, OS X and Android.[6]