Go implementation of the Ethereum protocol

An incremental parsing system for programming tools

Bitcoin Core GUI staging repository

Bitcoin Script Debugger

Minisketch: an optimized library for BCH-based set reconciliation

Bitcoin Improvement Proposals

Wallet

Bitcoin Core integration/staging tree

Bitcoin.org Website

Bitcoin Core project website

qBittorrent BitTorrent client

Accept Bitcoin payments. Free, open-source & self-hosted, Bitcoin payment processor.

Bitcoin Wallet app for your Android device. Standalone Bitcoin node, no centralized backend required.

A full stack for bitcoin and blockchain-based applications

Mastering Bitcoin 3rd Edition - Programming the Open Blockchain