Simple and portable (but not inflexible) GUI library in C that uses the native GUI technologies of each platform it supports.

The future of online communications.

Minimalistic C client for Redis >= 1.2

Redshift adjusts the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night.

A Redis HTTP interface with JSON output

Core Lightning — Lightning Network implementation focusing on spec compliance and performance

Optimized C library for EC operations on curve secp256k1

🔒 Trezor Firmware Monorepo

Awesome Bitcoin toolkit for ObjC and Swift

Block's Bitcoin Cold Storage solution.

Bitcoin Script Debugger

HTTP server implementation for Qt based on node.js' http parser

Rust language bindings for Bitcoin secp256k1 library.

Simplicity is a blockchain programming language designed as an alternative to Bitcoin script.

Useful primitives for wallets

SPV bitcoin C library

A bitcoin library in C, SPV wallet & more.

An Android wallet for the Lightning Network

Tiny Bitcoin Library written in C

Tool for converting Bitcoin keys and addresses

Lightning Network (BOLT)

Simple constant-time AES implementation

MCU code for the BitBox01 hardware wallet

A QT/C++ client for Open-Transactions.

iMatix GSL code generator, used by ZeroMQ

A predecessor of the BitBoxApp. The actual desktop and mobile app is at https://github.com/digitalbitbox/dbb-app.

Confirmed Transaction Reference Code

C++ library to access Bitpays Wallet Service (Copay) https://github.com/bitpay/bitcore-wallet-service

A C++ port of picocoin's ccoin