Paper Wallet

A paper wallet is a bitcoin address and / or private key printed or written down on paper.

Paper wallets generated on offline computers are considered one of the most secure ways to store bitcoins. However, if someone gets physical access to the paper wallet they will have access to your private key, and can therefore spend the bitcoins. Encrypted paper wallets, requiring a password to decrypt the private key, can protect against this.

Bitaddress.org is the most established website which allows you to create a paper wallet. The private key is generated using JavaScript in your browser, so it is possible to save the website to your computer and then use it while not connected to the internet.