Repositories list

• sparrow

  Public
  Desktop Bitcoin Wallet focused on security and privacy. Free and open source.

  bitcoinbitcoin-wallet

  bitcoinbitcoin-wallet

  Java

  •

  Apache License 2.0

  •299299 forks•2k2k stars•225225 issues•1919 pull requests•Updated Jul 20, 2026Jul 20, 2026

• drongo

  Public
  Bitcoin Library

  Java

  •

  Apache License 2.0

  •4848 forks•4646 stars•00 issues•33 pull requests•Updated Jul 16, 2026Jul 16, 2026

• duckdb-ufsecp-extension

  Public
  DuckDB extension for silent payments scanning using libufsecp

  C++

  •

  MIT License

  •11 fork•22 stars•00 issues•00 pull requests•Updated Jul 15, 2026Jul 15, 2026

• frigate

  Public
  Frigate Electrum Server

  Java

  •

  Apache License 2.0

  •1212 forks•8686 stars•22 issues•11 pull request•Updated May 30, 2026May 30, 2026

• lark

  Public
  Bitcoin USB Hardware Wallet Interface library

  Java

  •

  Apache License 2.0

  •77 forks•99 stars•00 issues•22 pull requests•Updated May 24, 2026May 24, 2026

• github-actions

  Public
  Reusable GitHub Actions for Sparrow Wallet projects

  22 forks•00 stars•00 issues•11 pull request•Updated Mar 31, 2026Mar 31, 2026

• UltrafastSecp256k1

  Public
  Ultra high-performance secp256k1 ECC library | C++20 | CUDA, Metal, OpenCL, ROCm, WASM | Apple Silicon M1-M4 | 15+ platforms | Branchless, allocation-free hot p…

  C++

  •

  MIT License

  •1919 forks•00 stars•00 issues•00 pull requests•Updated Mar 26, 2026Mar 26, 2026

• usb4java

  Public
  USB library for Java based on libusb

  Java

  •

  MIT License

  •110110 forks•00 stars•00 issues•00 pull requests•Updated Mar 13, 2026Mar 13, 2026

• larkapp

  Public
  Command line application for the Lark USB Hardware Wallet library

  Java

  •

  Apache License 2.0

  •22 forks•2323 stars•00 issues•00 pull requests•Updated Mar 5, 2026Mar 5, 2026

• duckdb-secp256k1-extension

  Public
  DuckDB extension incorporating functions from the secp256k1 library

  C++

  •

  MIT License

  •44 forks•33 stars•00 issues•11 pull request•Updated Mar 5, 2026Mar 5, 2026

• duckdb-cudasp-extension

  Public template
  DuckDB extension for silent payments scanning using CUDA

  Python

  •

  MIT License

  •113113 forks•11 star•00 issues•00 pull requests•Updated Mar 3, 2026Mar 3, 2026

• signpackage

  Public
  Java: Recursively signs certain files, even inside jar files, with "codesign" on macOS.

  Kotlin

  •

  Apache License 2.0

  •88 forks•11 star•00 issues•00 pull requests•Updated Feb 4, 2026Feb 4, 2026

• gECC

  Public
  gECC: A GPU-based high-throughput framework for Elliptic Curve Cryptography

  C++

  •

  MIT License

  •55 forks•00 stars•00 issues•00 pull requests•Updated Oct 30, 2025Oct 30, 2025

• openpnp-capture

  Public
  A cross platform video capture library with a focus on machine vision.

  C

  •

  MIT License

  •7575 forks•00 stars•00 issues•00 pull requests•Updated Oct 21, 2025Oct 21, 2025

• openpnp-capture-java

  Public
  Java bindings for the openpnp-capture video capture library.

  Java

  •

  MIT License

  •1414 forks•00 stars•00 issues•00 pull requests•Updated Oct 21, 2025Oct 21, 2025

• parrot

  Public
  Telegram bot to forward messages pseudonymously to a group

  Java

  •

  Apache License 2.0

  •22 forks•44 stars•00 issues•00 pull requests•Updated Jan 23, 2025Jan 23, 2025

• tern

  Public
  HTTP client for Sparrow Wallet

  Java

  •

  Apache License 2.0

  •00 forks•00 stars•00 issues•00 pull requests•Updated Nov 28, 2024Nov 28, 2024

• hummingbird

  Public
  Java UR implementation

  Java

  •

  Apache License 2.0

  •1515 forks•1515 stars•00 issues•00 pull requests•Updated Oct 24, 2024Oct 24, 2024

• bokmakierie

  Public
  QR reader powered by minimized BoofCV

  Java

  •

  Apache License 2.0

  •22 forks•11 star•00 issues•00 pull requests•Updated Oct 9, 2024Oct 9, 2024

• zbar-windows

  Public
  ZBar is an open source software suite for reading bar codes from various sources, including webcams. As its development stopped in 2012, I took the task of keep…

  C

  •

  GNU Lesser General Public License v2.1

  •236236 forks•22 stars•00 issues•00 pull requests•Updated Jul 16, 2024Jul 16, 2024

• nightjar

  Public
  Whirlpool client single module

  Java

  •22 forks•22 stars•00 issues•00 pull requests•Updated Feb 14, 2024Feb 14, 2024

• AnonymousForwardingBot

  Public
  A telegram bot which forwards forwards all of it's messages to a specific group for ensuring privacy of your users.

  JavaScript

  •

  MIT License

  •1717 forks•00 stars•00 issues•00 pull requests•Updated Feb 8, 2024Feb 8, 2024

• toucan

  Public
  Java implementation of LifeHash

  Java

  •

  Apache License 2.0

  •22 forks•11 star•00 issues•00 pull requests•Updated Jan 5, 2023Jan 5, 2023

• sparrow-planning

  Public
  Sparrow Wallet Project Planning Docs

  44 forks•55 stars•00 issues•00 pull requests•Updated May 22, 2021May 22, 2021

• Bitcoin.org

  Public
  Bitcoin.org Website

  HTML

  •

  Other

  •2.1k2.1k forks•22 stars•00 issues•00 pull requests•Updated Apr 23, 2021Apr 23, 2021

• HWI

  Public
  Bitcoin Hardware Wallet Interface

  Python

  •

  MIT License

  •238238 forks•66 stars•00 issues•00 pull requests•Updated Nov 26, 2020Nov 26, 2020

• Airgapped-Wallet-Community

  Public
  Best practices for a protocol for transmission of messages between hot and cold cryptographic wallets.

  Swift

  •

  Other

  •1414 forks•66 stars•00 issues•00 pull requests•Updated Oct 15, 2020Oct 15, 2020