The web is healthy when the financial cost of self-expression isn’t a barrier. This installment of the Dweb series describes WebTorrent – an implementation of the BitTorrent protocol that runs in a web browser. It’s written completely in JavaScript – the language of the web – and uses WebRTC for true peer-to-peer transport. No browser plugin, extension, or installation is required. The distributed approach removes the cost of running centralized servers at data centers, allowing websites to scale sustainably.