Below is a comprehensive list of all the Bitcoin projects that we track for discussing updates on the Bitcoin.Review podcast.

Bitcoin Core

  • Bitcoin: Bitcoin Core integration/staging tree [Github]
  • HWI: Bitcoin Hardware Wallet Interface [Github]

Coinkite Products

Signing Devices:

  • Ledger
  • Trezor
  • Keystone
  • Seedsigner: Use an air-gapped Raspberry Pi Zero to sign for Bitcoin transactions
  • Specter DIY: DIY airgapped hardware wallet that uses QR codes for communication with the host
  • Krux: Open-source signing device firmware for Bitcoin
  • Krux Installer: A GUI based application to flash Krux firmware on K210 based devices (WIP)
  • Block
  • BitKey: Self-custody bitcoin wallet with an app, hardware, and recovery tools.
  • Frostsnap: Firmware and software for Frostsnap - easy, personalized, secure Bitcoin multisignatures
  • Portal: Firmware and supporting libraries for the Portal Hardware Wallet

Desktop Wallets:

  • Fully Noded: Self sovereign, secure, powerful, easy to use wallet that utilizes your own node as a backend.
  • Electrum: Electrum Bitcoin Wallet
  • Electrs: An efficient re-implementation of Electrum Server in Rust
  • Specter Desktop: A desktop GUI for Bitcoin Core optimised to work with hardware wallets
  • Sparrow Wallet: Desktop Bitcoin Wallet focused on security and privacy. Free and open source.
  • Wasabi Wallet: Open-source, non-custodial, privacy preserving Bitcoin wallet for Windows, Linux, and Mac.
  • Liana: The missing safety net for your coins
  • Mycitadel-Desktop: MyCitadel Wallet app for Linux, Windows & MacOS desktop made with GTK+3

Servers

  • Electrum Personal Server: Maximally lightweight electrum server for a single user
  • Floresta: A fully-validating Bitcoin node powered by Utreexo, with an integrated Electrum Server
  • Phoenixd: Server equivalent of the popular Phoenix wallet for mobile.

Mobile Wallets

Bitcoin Testnet

  • Padawan Wallet: The bitcoin wallet trainer on Android

Lightning Implementations

  • Core Lightning: Lightning Network implementation focusing on spec compliance and performance
  • LND: Lightning Network Daemon
  • LDK: A highly modular Bitcoin Lightning library written in Rust.
  • Eclair: A scala implementation of the Lightning Network.

Lightning Tools and Projects

Lightning Testing

  • lnprototest: Lightning BOLT Protocol Test Framework
  • sim-ln
  • scaling-lightning: A Testing Toolkit for the Lightning Network

Payments

Dev Kits/Primatives/Protocols

Nodes

  • Umbrel: home server OS for self-hosting with an app store
  • RasPiBlitz: do-it-yourself Bitcoin & Lightning Fullnode running on a RaspberryPi 4&5
  • StartOS: Open source Linux distro optimized for self-hosting
  • MyNode
  • Citadel: simple, minimalistic host system components for running a Citadel server
  • MicroBolt: self-hosted Bitcoin & Lightning full node guide on a personal computer

Node management

  • Torq: Advanced node management software that helps lightning node operators analyze and automate their nodes.
  • Thunderhub: ThunderHub LND Lightning Node Manager in your Browser
  • Clams Remote: Remote control your Core Lightning node
  • Bolt.Observer: enterprise-grade solutions for node management, liquidity, and observability.
  • Coffee: Reference implementation for a flexible core lightning plugin manager
  • BitBanana: Lightning Node Management for Android
  • validating-lightning-signer: library and reference implementation for a signer module to secure Lightning nodes.
  • Lightning Orb: cross-platform application for managing an LND / CLN Lightning node.
  • LNDg: GUI for LND Data Analysis and Node Management
  • Nodeyez: Display panels to get the most from your node.
  • CLBOSS: Automated Core Lightning Node Manager
  • Ride the Lightning: A full function web browser app for LND, C-Lightning and Eclair
  • Mutiny-StartOS: Mutiny Wallet for StartOS
  • Utreexo: Hash based dynamic accumulator
  • Utreexod: Fully validating Bitcoin node with Utreexo support
  • Greenlight: Build apps using self-custodial lightning nodes in the cloud

Privacy Tools

  • JoinMarket: Bitcoin CoinJoin implementation with incentive structure to convince people to take part
  • Joininbox: A terminal based graphical menu for JoinMarket
  • Jam: A modern interface for JoinMarket
  • Rust-Payjoin: Supercharged payment batching to save you fees and preserve your privacy

Block Explorers:

  • Mempool.Space: The Mempool Open Source Project™
  • BTC RPC Explorer: Database-free, self-hosted Bitcoin explorer, via RPC to Bitcoin Core.
  • Blockstream Satellite: Protects against network interruptions and provides areas without reliable internet connection access to the Bitcoin network.

Exchanges

Federated Cash

  • Cashu Nutshell: Chaumian Ecash wallet and mint for Bitcoin Lightning
  • Cashu.me: Cashu wallet PWA
  • Cashu Development Kit: CDK is a collection of rust crates for Cashu wallets and mints written in Rust
  • Fedimint: Federated E-Cash Mint
  • Nutstash Wallet: Cashu Wallet with multi-mint and send-to-nostr-key functionality
  • Github
  • Nutstash Browser Extension: Cashu Browser Extension
  • eNuts: A Cashu wallet for Android and iOS
  • Cashcrab: A Cashu wallet with a flutter UI and with as much logic as possible in rust using cashu-crab with nostr integration for contacts and messaging.
  • Minibits Wallet: (Beta) Ecash and Lightning wallet with a focus on ease of use and security

Podcasting 2.0

Rewards

  • The Bitcoin Company: Buy prepaid Visa cards with bitcoin and spend them almost anywhere.
  • Satsback: an evolution of cashback and loyalty rewards.
  • Lolli: Earn free rewards at 25,000+ top stores.
  • Oshi: Integrate Bitcoin rewards into your business with ease.
  • Smiles Bitcoin: Get free Bitcoin rewards for walking, shopping, playing games, and surveys.
  • Joltz: Unlock the Bitcoin economy with Taproot assets.

Mining

  • ESP-Miner: A bitcoin ASIC miner for the ESP32
  • NerdMiner: Open-source Micro Miner

Hobbyist Projects

  • Orange Clock: OrangeClock displays moscow time
  • M17-Project Module_17: M17 modem board for 9600-baud capable radios

Tools & Productivity

  • BIP39-XOR: Encrypt or decrypt BIP39 codewords array using exclusive OR (XOR)/Vernam cipher
  • LabelBase: label management service for Bitcoin transactions and addresses
  • Pylabelbase: official Python API wrapper for LabelBase
  • sms4sats: Send and receive SMS without giving away your phone number
  • Zaprite: Bitcoin invoicing, project management and expense tracking
  • Wavlake: The first-ever Lightning-powered music streaming site
  • SeedHammer: Steel backup specialized for bitcoin multisig wallets
  • TX Pusher: conditional transaction broadcasting tool
  • LiveWallet: An application to help estimate the effect of bitcoin transaction fees on invididual utxos and transactions containing multiple utxos.

Smart contracts

  • BitMask: Bitcoin-only web wallet and browser extension for accessing decentralized web applications on the Bitcoin timechain

Privacy Software

Other

  • BTC Map: Easily find places to spend sats anywhere on the planet.
  • Atomic.finance: Earn returns on your Bitcoin, while holding your keys.
  • Emeralize: A lightning marketplace and lightweight learning management system.