Projects sharing features with Bitcoin Wallet

This project is a multi-chain cryptocurrency wallet and self-custodial asset manager. It allows users to store, manage, and transfer digital assets across multiple blockchain networks while maintaining exclusive local control over private keys. The application implements multisignature security, requiring a quorum of digital signatures from multiple participants to authorize transactions for shared funds. It also provides tools for self-custodial management, including hierarchical deterministic key derivation and local private key storage. The platform covers a range of financial operations,

BlueWallet is a Bitcoin wallet application that provides a mobile interface for managing Bitcoin assets, including standard wallets and specialized tools for Lightning Network payments. It serves as a coordinator for various wallet types, including multisig vaults and watch-only interfaces. The project distinguishes itself through advanced security and privacy features, such as decoy storage architecture to hide assets during forced disclosure and custom entropy generation using physical dice or coins. It supports air-gapped transaction management via QR codes and PSBT integration for hardwar

This project provides a collection of infrastructure components for multichain wallet integration, including a cryptographic library for cross-chain transaction signing and a curated repository for cryptocurrency asset metadata. It serves as a central hub for managing token logos, contract addresses, and technical specifications for digital assets across multiple blockchains. The system includes a Model Context Protocol server that exposes real-time blockchain data and technical documentation to large language models. It further extends this AI integration by providing a standardized tool-cal

Rotki is a local-first financial management suite designed for cryptocurrency portfolio tracking, tax accounting, and decentralized finance analytics. It functions as a self-hosted application that secures all financial records, transaction history, and user credentials within an encrypted local database, ensuring that sensitive data remains entirely under user control. The platform distinguishes itself through a privacy-preserving architecture that eliminates reliance on centralized cloud storage or third-party data providers. Users maintain full control over their connectivity by configurin

This project is a blockchain node software implementation that maintains a decentralized ledger using the Ouroboros proof-of-stake consensus protocol. It provides a complete environment for operating a distributed record, including a cryptocurrency wallet backend and a peer-to-peer network layer. The system is distinguished by its use of a UTXO-based ledger model and a diffusion-based state synchronization layer for node communication. It integrates a Public Key Infrastructure with TLS-authenticated communication to secure inter-node traffic and employs hierarchical deterministic key derivati

This project is a simplified blockchain implementation built in Go. It functions as a distributed ledger featuring peer-to-peer nodes and a transaction system based on unspent transaction outputs. The implementation includes a cryptographic digital wallet for managing public-private key pairs and addresses. It ensures data integrity through a sequential linked-block ledger and utilizes Merkle trees for efficient transaction verification. The system incorporates a proof-of-work consensus mechanism and uses TCP-based communication to synchronize state across network nodes. It provides a framew

This project is a Substrate-based blockchain protocol implementation and a modular Rust blockchain runtime. It provides a framework for executing a distributed ledger protocol to maintain a synchronized network of nodes. The system features a peer-to-peer node implementation that manages decentralized communication and local key-value database storage. It includes a BFT-based consensus engine for coordinating block authoring and finality, as well as a WebAssembly-based runtime for isolated execution of state transitions. The protocol organizes domain-specific logic through a modular pallet a

IPFS is a peer-to-peer hypermedia protocol and content-addressed storage system that identifies data by cryptographic hashes rather than network locations. It enables the creation of a decentralized web by organizing files and directories as directed acyclic graphs of linked content identifiers. The project differentiates itself through the use of a distributed hash table for locating peers and a system of signed records to map human-readable names to changing content. It also provides HTTP gateways that translate standard web requests into peer-to-peer queries, allowing decentralized data to

Naivechain is an educational blockchain implementation designed to demonstrate the fundamentals of distributed ledgers. It functions as a proof-of-work blockchain where nodes solve computational puzzles to validate new blocks and secure the network. The system operates as a peer-to-peer network using WebSockets to propagate transactions and synchronize state across nodes. It includes an asymmetric key wallet for generating public and private key pairs, enabling users to sign transactions and manage digital identities. Node administration and ledger data retrieval are handled through an HTTP

This project is a cross-platform credential management suite designed to store sensitive information in encrypted local databases. It functions as a secure desktop application that provides a unified environment for organizing secrets, generating passwords, and managing multi-factor authentication tokens. By utilizing industry-standard file formats, the application ensures that stored credentials remain secure and interoperable across different operating systems. The software distinguishes itself through deep integration with hardware-backed security and system-level services. It supports phy

Web3Modal is a wallet connection interface and onboarding toolkit used to link external cryptocurrency wallets to applications across multiple blockchain networks. It provides a unified user interface for managing digital wallet connections and tracking user authentication sessions. The project features an embedded social wallet system that enables non-custodial wallet provisioning via social logins and email to remove the requirement for seed phrases. It also includes an account abstraction framework for deploying programmable smart accounts and a multi-chain provider router to manage transa

This project is an Android password manager application that provides an end-to-end encrypted vault for storing and synchronizing login credentials, secure notes, and identities. It functions as a secure storage system using zero-knowledge encryption to ensure that only the user can decrypt their stored data. The application integrates directly with the Android system to provide an autofill service that populates usernames and passwords into mobile apps and browser login fields. It also serves as a passkey management wallet for FIDO2 cryptographic passkeys and a time-based one-time password a

Paperless-ng is a self-hosted document management system designed to archive physical paperwork as searchable digital files. It functions as a private server for scanning, indexing, and organizing a digital library of documents through a web interface. The system acts as an encrypted file archive, utilizing a privacy guard backend to secure stored documents. It provides automatic on-the-fly decryption during the download process to ensure that archived records remain protected while in storage. The platform incorporates optical character recognition to convert scanned images and PDFs into se

KeePassX is a cross-platform password vault application and database manager that stores usernames and passwords in an encrypted file. It utilizes the KeePass database format to secure records using a master password or an optional key file. The application includes an automatic form filler that populates login fields in external applications and a secure password generator for creating high-entropy randomized passwords. The system provides tools for organizing credentials through custom metadata and grouping, alongside utilities for searching records and importing or exporting data.

Monero is a privacy-focused cryptocurrency and proof-of-work blockchain designed for private digital payments. It utilizes a peer-to-peer network and a distributed ledger to allow users to send and receive currency while hiding transaction senders, receivers, and amounts. The system achieves financial confidentiality through the use of ring signatures for sender obfuscation and RingCT with Bulletproofs to hide transaction values. To ensure network security and decentralization, it employs a memory-hard proof-of-work algorithm optimized for general-purpose CPUs. The project provides a full no

VeraCrypt is a cross-platform disk encryption utility used to create encrypted file containers and secure entire disk partitions. It functions as a tool for full disk encryption and a manager for encrypted volumes, providing a means to protect sensitive data on local disks and removable media across multiple operating systems. The software is distinguished by its support for plausible deniability, allowing the creation of hidden volumes nested within other encrypted volumes to conceal the existence of data. It also implements hardware-based access control, requiring physical security tokens,

This project is a protocol tool, server, and indexer for managing digital artifacts and commodities on the Bitcoin blockchain. It provides the core infrastructure for inscribing arbitrary data onto individual satoshis to create permanent, immutable assets and collectibles. The system implements the Runes protocol for creating, minting, and transferring native digital commodities. It distinguishes itself by tracking satoshi rarity based on mining order and establishing parent-child provenance mapping to verify the lineage and authenticity of on-chain inscriptions. The project covers a broad s

andOTP is an open-source multi-factor authentication client for Android. It functions as a time-based and HMAC-based one-time password authenticator for managing two-factor authentication tokens. The application serves as an encrypted vault for authentication secrets, utilizing hardware keystores, passwords, or PINs to secure the account database. It is specifically designed to support automated backups by exporting account databases via system broadcasts for integration with external automation tools. The software covers the management of authentication tokens through QR code scanning and t

OmniRoute is a unified LLM API gateway that connects multiple AI providers to a single endpoint. Its primary purpose is to simplify the integration of various AI models into tools and agents by translating different provider formats into a standardized API. The project distinguishes itself through a multi-strategy request routing system that optimizes for cost, speed, and availability, including automatic model fallbacks and a circuit-breaker resilience model to isolate provider failures. It employs a local-first security posture, using AES-256-GCM encryption to store API keys and conversatio

This project provides a high-performance key-value storage solution for mobile applications, utilizing memory-mapped files to enable rapid read and write operations. It functions as a persistent data layer that integrates directly with the JavaScript runtime to minimize overhead, while supporting reactive state synchronization to ensure interface components update automatically when stored data changes. The storage system distinguishes itself through its ability to manage multiple independent database instances, which organizes data by module and prevents collisions between application compon

Rainbow is a mobile application for storing, sending, and managing digital assets on the Ethereum blockchain and compatible networks. It functions as a mobile wallet and gallery for managing cryptocurrency and non-fungible tokens. The project includes an integrated web browser that injects a wallet provider to enable interaction with decentralized applications. It features a transaction simulator that previews the outcome of smart contract interactions before a user signs a request, and a crypto asset aggregator for swapping currencies and depositing fiat funds via third-party providers. The

Ente is a privacy-focused platform for end-to-end encrypted storage and two-factor authentication management. It functions as a zero-knowledge identity provider, ensuring that all cryptographic operations, key derivation, and data encryption occur locally on the user's device. By maintaining this architecture, the service provider remains unable to access or decrypt any stored personal information or authentication credentials. The platform distinguishes itself through a combination of on-device intelligence and resilient data distribution. It utilizes a local machine learning engine to perfo

Cointop is a cryptocurrency terminal user interface designed for monitoring real-time market statistics, prices, and asset trends. It serves as a market dashboard and portfolio tracker, enabling the management of personal asset holdings and the calculation of profit and loss within a command line environment. The project distinguishes itself with a server capability that allows the interface to be hosted and accessed remotely via secure shell sessions. It also includes a notification system that triggers desktop alerts when specific assets reach predefined price thresholds. The application p

Massa is a multithreaded Layer 1 blockchain and decentralized application platform. It serves as a programmable ledger for deploying smart contracts and executing decentralized operations using a multithreaded architecture to process transactions in parallel. The project features a blockchain web hosting gateway for storing immutable websites and front-end code directly on the ledger to ensure censorship resistance. It also functions as a cross-chain asset bridge for transferring digital assets between different blockchain networks and provides a system for autonomous smart contract execution

SEAL is a homomorphic encryption library and C++ cryptography framework that enables mathematical operations on encrypted data without requiring decryption. It provides a toolset for performing additions and multiplications on encrypted integers and complex numbers to support privacy-preserving computation. The framework implements the BFV and CKKS schemes, allowing for both modular arithmetic on encrypted integers and approximate arithmetic on fixed-precision floating-point numbers. It includes specialized wrappers to integrate these cryptographic workflows into .NET environments and support

This project is a curated collection of technical documentation and tutorials designed to guide developers through the mechanics of the Bitcoin blockchain. It serves as a structured learning path for those building applications that interact with decentralized financial systems, covering the fundamental concepts required to implement secure software within the ecosystem. The resource provides a comprehensive curriculum for understanding the core technical pillars of the network, including cryptographic key management, transaction construction, and protocol interaction. By organizing these mat