This table compares the features of the different clients. All of the listed clients are open-source.
- Wallet Security
- How well the client protects your private keys from people with access to the machine the wallet is stored on. The private keys can be encrypted, for example.
- Network Security
- Clients which more fully implement the Bitcoin network protocol are safer -- they can't be as easily tricked by powerful attackers. A client which fully implements the protocol will always use the correct block chain and will never allow double-spends or invalid transactions to exist in the block chain under any circumstances. Clients which only partially implement the protocol typically trust that 50% or more of the network's mining power is honest. Some clients trust one or more remote servers to protect them from double-spends and other network attacks.
- Setup Time
- Some clients require that you download and verify a large amount of data before you can send or receive BTC.
- When the project was started.
|Client||Get Started||Audience||Wallet Security||Network Security||Backups||Setup Time||Disk Space||Maturity||Multi-user||Available for|
|Armory||Download||Power users||Encrypted, on-device||Addon||One-time||Varies||2+ GB||Jul 2011||Multi-wallet|
|Bitcoin Wallet||Download||Everyone||Isolated, on-device||Partial||Manual||1 hour||30 MB||Mar 2011||on JB tablets||& BB|
|Bitcoin-Qt||Download||End-users||Encrypted, on-device||Full||Manual||Hours||2+ GB||May 2011||No|
|bitcoind||Download||Programmers||Encrypted, on-device||Full||Manual||Hours||2+ GB||Aug 2009||Virtual accounts|
|Electrum||Download||Power users||Encrypted, on-device||Minimal||Memorized||Minutes||5 MB||Nov 2011||No|
|MultiBit||Download||End-users||None, on-device||Partial||No||1 hour||50 MB||Jul 2011||Multi-wallet|
|My Wallet||Web-based||Everyone||Encrypted, on a server||Remote||Automatic||Minutes||None||Dec 2011||Yes|
This table shows additional information about various Bitcoin clients that may be relevant to developers.
|Bitcoin Wallet||Link||Google Code||GPLv3||Bitcointalk / Google Groups||SPV|
|Bitcoin-Qt / bitcoind||Link||Github||MIT||Sourceforge||Integrated|