Keplr Wallet is an open-source, non-custodial multi-chain wallet designed for interacting with blockchain applications, particularly focusing on supporting Inter-Blockchain Communication (IBC) and the Cosmos ecosystem. Its key features include compatibility with IBC blockchains, local storage of private keys, support for over 40 native chains and 70+ non-native chains, a governance solution for validators, and the ability to establish a portable identity across different chains with the Interchain Nameservice.