Bitcoin Armory is a client that sits on top of the official bitcoin client. Bitcoinj is a totally different client, separate from the official bitcoin client. Does Electrum also need the official bitcoin client, or is it separate?

1 Answer 1


No, Electrum doesn't require Bitcoin-Qt to be installed on your computer. Electrum and BitcoinJ aren't full clients, though, so they do rely on Bitcoin-Qt at some level -- Electrum through the Stratum network and BitcoinJ through the Bitcoin network's SPV mode.

  • 2
    It might be also good to add that Electrum doesn't require a local copy of the blockchain.
    – 7anner
    Jun 14, 2013 at 16:50
  • @theymos Electrum uses Electrum Servers that store the blockchain and broadcast signed transactions
    – rdymac
    Jun 19, 2013 at 1:22
  • 1
    @rdymac Yeah, and those servers run Bitcoin-Qt.
    – theymos
    Jun 19, 2013 at 3:18
  • Sorry, I was answering to @7anner
    – rdymac
    Jun 19, 2013 at 23:46

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