Testnet is a separate blockchain used for testing purposes. It allows developers to experiment with new features and applications without the risks associated with using real money. Since testnet transactions are conducted with worthless tokens, developers can identify bugs and improve functionality without financial consequences.Testnets simulate the main network’s environment, enabling users to see how changes will behave under real-world conditions. They often have similar rules and protocols as the main blockchain but lack the economic stakes.Additionally, testnets provide users with a safe space to learn and practice. New users can interact with the blockchain, experiment with wallets, and conduct transactions, helping them gain hands-on experience without the fear of losing funds.Overall, testnets are essential for ensuring that updates and new features work correctly before being deployed on the primary network. They play a vital role in enhancing the reliability and security of blockchain projects.