Protocols

BitTorrent

BitTorrent (BT) is the leader of peer-to-peer file sharing protocols.

Specification

The BitTorrent Protocol Specification

Bencode

Bencoding - encoding for storing and transmitting loosely structured data used in BitTorent.

Implementations:

• Python 2: bittorrent/bencode - implemention from the 'official' BitTorrent client.
• Python 3: hexlab/bencode - Bencode is the encoding used by the p2p file sharing system BitTorrent.
• Rust: P3KI/bendy - library for encoding/decoding bencode with enforced cannonicalization rules.
• Go: zeebo/bencode - Go bencode marshal/unmarshal library.
• JavaScript/Node: themasch/node-bencode - bencode de/encoder for nodejs.
• Ruby: dasch/ruby-bencode - Ruby bindings for the bencode data serialization format.

BitTorrent clients

• qBittorrent qbittorrent/qBittorrent - qBittorrent BitTorrent client (C++/Qt).
• Deluge: deluge-torrent/deluge - Deluge is a BitTorrent client that utilizes a daemon/client model (Python).
• WebTorrent: webtorrent/webtorrent - Streaming torrent client for the web (JavaScript).

BitTorrent trackers

IPFS

InterPlanetary File System (IPFS) is a protocol and peer-to-peer network for storing and sharing data in a distributed file system.

• IPFS: ipfs/ipfs - A peer-to-peer hypermedia protocol to make the web faster, safer, and more open.
• go-ipfs: ipfs/go-ipfs - IPFS implementation in Go.
• js-ipfs: ipfs/js-ipfs - IPFS implementation in JavaScript.

WebRTC

Web Real-Time Communication (WebRTC) is protocol that provides web browsers and mobile applications with real-time communication (RTC).

Messengers

Tox

• Tox: irungentoo/toxcore - the future of online communications.
• tox-rs: tox-rs/tox - toxcore implementation in Rust
• qTox: qTox/qTox - qTox is a chat, voice, video, and file transfer IM client (C++/Qt).
• uTox: uTox/uTox/ - µTox the lightest and fluffiest Tox client (C/GTK).
• toxic: Jfreegman/toxic - an ncurses-based Tox client.
• Antox: Antox/Antox - Android client for Project Tox - Secure Peer to Peer Messaging.

File Synchronization

• Syncthing: syncthing/syncthing - open source continuous file synchronization (Go).
• rsync: rsync - rsync is an open source utility that provides fast incremental file transfer (C).
• Rclone: rclone/rclone - rsync for cloud storage (Go).

Cryptocurrencies

Bitcoin

• Bitcoin: bitcoin/bitcoin - Bitcoin Core integration/staging tree.
• BitcoinJS: bitcoinjs/bitcoinjs-lib - a javascript Bitcoin library for node.js and browsers.

Tutorials and books

• Mastering Bitcoin 2nd Edition - Programming the Open Blockchain: bitcoinbook/bitcoinbook

Ethereum

• Go Ethereum: ethereum/go-ethereum - official Golang implementation of the Ethereum protocol.
• Parity Ethereum: paritytech/parity-ethereum - the fast, light, and robust EVM and WASM client.