Advanced multisig desktop BTC wallet with API interface, "Secure Bitcoin Storage Made Easy."
Offline, Paper, Cold storage
Paper wallet, Software wallet
Allows users to buy BTC using a large number of transacting services, including Neteller and Skrill.
Dark Wallet BTC
One of the first Chrome-based browser extensions, allows for client-side storage of private keys.
A Linux-specific wallet devoted to users of ZCash (ZEC), can generate paper wallets.
A bitcoin fork that now serves as a dual wallet for both Bitcoin Clasic (BCC) and Bitcoin Cash (BCH).