Open source

Open source Bitcoin software improves security and speeds up development for everyone

MultiBit

MultiBit is a lightweight desktop Bitcoin wallet used by hundreds of thousands of Bitcoin users (view Alexa rank). It was sold to KeepKey LLC in May 2016.

Lead developer: Jim Burton (now KeepKey LLC)

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MultiBit Merchant

MultiBit Merchant is a developing project that enables anyone to run their own Bitcoin merchant solution. It will enable the construction of Bitcoin-only supply chains and automation of much of the logistics and reporting.

Lead developer: Gary Rowe

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MultiBit Hardware

multibit-hardware is a hardware level library that integrates Trezor Bitcoin wallets with desktop computers. It was sold to KeepKey LLC in May 2016.

Lead developer: Gary Rowe (now KeepKey LLC)

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XChange

As part of our partnership with Xeiam, our development team provide consultancy and development expertise to the XChange open source financial library.

Lead developer: Tim Molter

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Bitcoinj Enforcer Rules

This project provides a verifiable Maven build environment for security-conscious projects like Bitcoinj. It checks Maven SHA1 hashes against a known whitelist to deter dependency-chain attack vectors.

We strongly urge you to use this in all your Bitcoin projects to protect against code injection.

Lead developer: Gary Rowe

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