Kleros is a decentralized arbitration platform that uses blockchain technology, game theory, and crowdsourced jurors to resolve disputes across sectors like e-commerce, finance, insurance, and freelancing. It operates as an open-source protocol on Ethereum, providing fast, inexpensive, and transparent dispute resolution enforced by smart contracts. Development is coordinated by Coopérative Kleros, a French cooperative, with a mission to enable access to justice through blockchain.