1. Desktop wallets: Software that is installed on a computer and designed to securely store cryptocurrencies.
2. Mobile wallets: Applications for mobile devices allowing users to store, transact and track their cryptocurrency holdings.
3. Web wallets: Online wallets stored in the cloud that can be accessed from any device connected to the Internet.
4. Hardware wallets: Physical wallets that store cryptocurrencies offline using a special device.
5. Paper wallets: Wallets printed out with both the public and private keys for use offline.
6. Brain wallets: A wallet created by memorizing a password or passphrase.