Ethereum - Blockchain APP Platform

•    Go

Ethereum is a  decentralized platform that runs smart contracts: applications that run exactly as programmed without any possibility of downtime, censorship, fraud or third party interference. These apps run on a custom built  blockchain, an enormously powerful shared global infrastructure that can move value around and represent the ownership of property. 

blockchain-demo - A web-based demonstration of blockchain concepts.

•    HTML

A web-based demonstration of blockchain concepts.

Sia - Your decentralized private cloud

•    Go

Sia is a new decentralized cloud storage platform that radically alters the landscape of cloud storage. By leveraging smart contracts, client-side encryption, and sophisticated redundancy (via Reed-Solomon codes), Sia allows users to safely store their data with hosts that they do not know or trust. The result is a cloud storage marketplace where hosts compete to offer the best service at the lowest price. And since there is no barrier to entry for hosts, anyone with spare storage capacity can join the network and start making money.

bitcoin-wallet - Bitcoin Wallet app for your Android device

•    Java

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

blockstack-browser - The Blockstack Browser

•    Javascript

The Blockstack Browser allows you to explore the Blockstack internet.Blockstack Browser requires a local instance of Blockstack Core to run. To get started, first install Blockstack Core and then proceed with the installation of Blockstack Browser.

blockstack-core - The reference implementation of Blockstack

•    Python

blockstack-core is the reference implementation of the Blockstack protocol.Blockstack is a new decentralized internet where you own your data and your apps run locally without remote servers.

go-ethereum - Official Go implementation of the Ethereum protocol

•    Go

Official golang implementation of the Ethereum protocol.Automated builds are available for stable releases and the unstable master branch. Binary archives are published at https://geth.ethereum.org/downloads/.

mist - Mist. Browse and use Ðapps on the Ethereum network.

•    Javascript

The Mist browser is the tool of choice to browse and use Ðapps.For the Mist API see the MISTAPI.md.

insight - A bitcoin blockchain explorer and API

•    Javascript

A Bitcoin blockchain explorer web application service for Bitcore Node using the Insight API.Please see the guide at https://bitcore.io/guides/full-node for information about getting a block explorer running. This is only the front-end component of the block explorer, and is packaged together with all of the necessary components in Bitcore.

OpenZeppelin - A Framework to build secure smart contracts on Ethereum

•    Javascript

OpenZeppelin is a library for writing secure Smart Contracts on Ethereum. With OpenZeppelin, you can build distributed applications, protocols and organizations. It is meant to provide secure, tested and audited code to enable the new generation of distributed applications, protocols and organizations. OpenZeppelin is a community effort to reduce the hurdle to develop and use them.

Truffle - The most popular Ethereum development framework

•    Javascript

Truffle is the most popular development framework for Ethereum with a mission to make your life a whole lot easier.

parity - Fast, light, robust Ethereum implementation.

•    Rust

Be sure to check out our wiki and the internal documentation for more information.Parity's goal is to be the fastest, lightest, and most secure Ethereum client. We are developing Parity using the sophisticated and cutting-edge Rust programming language. Parity is licensed under the GPLv3, and can be used for all your Ethereum needs.

Steem - The blockchain for Smart Media Tokens (SMTs) and decentralized applications.

•    C++

Steem is a Delegated Proof of Stake blockchain that uses a "Proof of Brain" social consensus algorithm for token allocation. It is a blockchain-based rewards platform for publishers to monetize content and grow community.

ipynb_playground - Various ipython notebooks

•    Jupyter

Best viewed on nbviewer.

bitcoin-on-nodejs - 《Node.js区块链开发》（网名《Nodejs开发加密货币》），纸质书籍和在线培训已经全部开启

•    Javascript

《Node.js区块链开发》（网名《Nodejs开发加密货币》），纸质书籍和在线培训已经全部开启

manticore - Symbolic execution tool

•    Python

Manticore is a symbolic execution tool for analysis of binaries and smart contracts. Manticore is supported on Linux and requires Python 2.7. Ubuntu 16.04 is strongly recommended. Ethereum smart contract analysis requires the solc program in your $PATH.

blockchain - 区块链 - 中文资源

区块链 - 中文资源

VERGE - official source code repository for VERGE cryptocurrency

•    C

Binary (pre-compiled) wallets are available on all platforms at https://vergecurrency.com. Note: Important! Only download pre-compiled wallets from the official Verge website or official Github repos.

blockchain_guide - Introduce blockchain related technologies, from theory to practice with bitcoin, ethereum and hyperledger

•    Go

Introduce blockchain related technologies, from theory to practice with bitcoin, ethereum and hyperledger.

composer - Composer is a framework for building Blockchain business networks

•    Javascript

This site will help you get up and running by developing a sample blockchain application to buy and sell houses and apartments in a digital property business network. There is a specific channel on RocketChat for contributors.