Cardano is a blockchain platform that aims to provide a more secure and scalable infrastructure for the development of decentralized applications and smart contracts. It is known for its focus on sustainability, scalability, and interoperability, making it suitable for a wide range of use cases such as financial services, supply chain management, identity verification, and voting systems. Additionally, Cardano's architecture allows for high transaction throughput and low fees, making it an attractive option for developers and users alike.