Polkadot is an open-source sharing multichain protocol that facilitates the cross-chain transfer of any data or asset types, not just tokens, thereby making a wide range of blockchains interoperable with each other.
Polkadot is built to connect private and consortium chains, public and permissionless networks, oracles, and future technologies that are yet to be created. Polkadot facilitates an internet where independent blockchains can exchange information and transactions in a trustless way via the Polkadot relay chain.
Polkadot is the flagship project by Web3 Foundation, a Swiss Foundation founded to facilitate a fully functional and user-friendly decentralized web.