What is Electrum? Electrum is a desktop bitcoin wallet that is compatible with multiple operating platforms, such as Windows, Mac and Linux. It was developed by a German computer scientist and designed to be lightweight and efficient. Over the years, various developers have contributed to its source code, making it what many people believe to be one of the most trusted wallets available. Although there are more than 900 cryptocurrencies on the market today, Electrum’s sole focus is bitcoin in an attempt to ensure that the platform remains fast and efficient at all times. One of Electrum’s core features is its integration with the major hardware wallets, such as TREZOR, KeepKey and Ledger Nano S. This means you can integrate Electrum with any of these premium hardware wallets. Compatibility Windows, Mac and Linux. Android wallet was also launched in 2016 for mobile use. Electrum is compatible with the major bitcoin hardware wallets.