Open-source alternatives to Bitcoinjs Lib

Canopy is the official Go implementation of a blockchain node that runs a recursive network architecture, enabling new blockchains to launch as dependent layers that can later graduate into fully independent security roots. The project provides a hybrid consensus mechanism that combines Byzantine fault-tolerant Proof-of-Stake with Verifiable-Delay Functions, delivering instant finality while protecting against long-range attacks through trustless chain age verification. Validators secure multiple chains simultaneously through restaking, where a single bonded stake serves as collateral across t

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

Web3.py is a Python library that provides a comprehensive interface for interacting with the Ethereum blockchain. It functions as a JSON-RPC client, allowing applications to connect to blockchain nodes via HTTP, WebSocket, or IPC to read network state and send transactions. The library includes a dedicated smart contract interface that uses Application Binary Interface definitions to deploy contracts and execute on-chain functions. It also features a cryptography toolkit for signing transactions and hashing data with Keccak, alongside utilities for translating Ethereum Name Service domain nam

Learning Bitcoin from the Command Line is an interactive tutorial that teaches Bitcoin Core node operation, JSON-RPC programming, and Lightning Network payments entirely from the terminal. The guide covers running a full Bitcoin Core node on a remote server with automated setup scripts, controlling the node through shell commands and JSON-RPC calls, and communicating with Bitcoin Core by sending JSON-formatted requests over HTTP. The tutorial provides hands-on instruction for writing and executing custom Bitcoin locking and unlocking scripts using Bitcoin's stack-based scripting language, bui

Electrum is an open-source, non-custodial Bitcoin wallet client that manages keys, transactions, and balances using Simplified Payment Verification (SPV) for lightweight transaction verification without downloading the full blockchain. It operates through a persistent background daemon that exposes a JSON-RPC interface for wallet operations and automation, and generates wallet keys from a mnemonic seed phrase using hierarchical deterministic key derivation. The wallet distinguishes itself through support for cold storage security with offline transaction signing on air-gapped devices, integra

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

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

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,

Mist is a desktop application that serves as both an Ethereum wallet client and a decentralized application browser. It manages Ethereum accounts, synchronizes blockchain data, and provides a dedicated interface for interacting with DApps hosted on the Ethereum network. The application distinguishes itself by bundling an embedded Ethereum node that can be orchestrated and configured through command-line flags, with support for both IPC and RPC transport protocols. It includes a sandboxed DApp browser that isolates each application's execution context, and a transaction signing gateway that au

Grin is a protocol implementation and blockchain node that provides a confidential transaction system. It uses Pedersen Commitments and homomorphic encryption to verify value integrity and ensure a consistent money supply without revealing specific transaction amounts or participant identities. The project distinguishes itself through an interactive transaction exchange model, where wallets coordinate multi-round data exchanges to build signed transactions. To maintain anonymity, the system supports onion-routed transaction delivery and masks originating IP addresses through specialized relay

Lux is a blockchain infrastructure project providing a distributed ledger and a smart contract platform. It utilizes a hybrid proof-of-work and proof-of-stake consensus mechanism to secure decentralized transactions and maintain network stability. The project features a peer-to-peer ecosystem that includes a decentralized file storage system for immutable data, a masternode network for governance, and a cross-chain asset bridge. It distinguishes itself with an ASIC-resistant hashing algorithm optimized for general-purpose CPUs and a decentralized order book for matching trades without a centr

This project is a mobile Bitcoin wallet and standalone node for Android devices. It enables the management of private keys and the processing of cryptocurrency transactions directly on the device without relying on a centralized backend server. The application distinguishes itself by supporting decentralized node operations, allowing users to maintain a direct connection to the blockchain network. It also integrates near-field communication to read payment requests from passive tags, automating the population of transaction details. The wallet includes capabilities for portfolio tracking wit

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

WebTorrent is a JavaScript client library and peer-to-peer file sharing tool that implements the BitTorrent protocol. It enables the seeding and downloading of files via magnet links and info hashes across both the browser and Node.js environments. The project distinguishes itself by using WebRTC data channels to establish direct browser-to-browser networking, allowing decentralized data transfer across different domains without a central server. It specifically focuses on streaming torrent media, enabling incremental video and audio playback by prioritizing sequential pieces of a file before

BlockTrail NodeJS SDK This is the BlockTrail NodeJS SDK. This SDK contains methods for easily interacting with the BlockTrail API. Below are examples to get you started. For additional examples, please see our official documentation at https://www.blocktrail.com/api/docs/lang/nodejs

✨ Bitcoin TypeScript/JavaScript Library for NodeJS, Browser and Mobile ✨

GitTorrent is a decentralized Git distribution system that enables the sharing and cloning of repositories across a peer-to-peer network. It replaces central hosting providers by using the BitTorrent protocol to transport Git objects and a custom transport mechanism for fetch and push operations. The project manages decentralized identity by mapping usernames to cryptographic keys through a blockchain identity registry. This system uses a blockchain to establish ownership and a distributed key-value store to manage signed user profiles and repository metadata without a central authority. Rep

Geth is a comprehensive execution client for the Ethereum network, serving as a foundational node implementation that processes transactions, maintains the distributed ledger state, and participates in peer-to-peer consensus. It provides a robust infrastructure for synchronizing, validating, and serving blockchain data, utilizing a persistent Merkle Patricia Trie database to ensure the cryptographic integrity of historical records. As a sandboxed smart contract runtime, it executes bytecode according to deterministic protocol rules, enabling the deployment and interaction of decentralized appl

pdfkit is a JavaScript PDF generation library used to programmatically create binary PDF documents in Node.js and browser environments. It functions as a vector graphics engine for rendering paths, shapes, gradients, and tiling patterns, and as a tool for producing rich text and tagged documents that follow international accessibility standards for screen reader compatibility. The library includes a security and encryption utility for applying document encryption and restricting user permissions regarding printing, copying, or editing. It also serves as a form and annotation tool, enabling th

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Hyperledger Fabric is a permissioned blockchain framework and enterprise blockchain platform designed for maintaining shared, immutable records of transactions across a network of authorized participants. It provides the infrastructure to build and manage private distributed ledgers that prioritize data confidentiality and scalability. The platform is distinguished by a modular architecture and a pluggable consensus engine. This design allows internal system implementations to be swapped with custom modules to adapt the ledger's behavior and consensus mechanisms to specific technical or indus

An implementation of IPFS in TypeScript

Isomorphic-git is a full implementation of the Git version control system written in JavaScript. It serves as a programmatic client library that allows developers to perform core version control operations without requiring a system-level Git binary installation. The library is designed as an isomorphic codebase, meaning it runs identically across both client-side web browser environments and server-side Node.js runtimes. It achieves this by using a filesystem-agnostic storage model and a pure JavaScript implementation of the Git core logic and the Smart HTTP protocol. The project covers a c

Audited & minimal JS implementation of elliptic curve cryptography.

Fastest 5KB JS implementation of secp256k1 signatures & ECDH.

Audited & minimal library for creating, signing & decoding Bitcoin transactions.

SheetJS is a comprehensive library for parsing, manipulating, and generating complex spreadsheet file formats. It functions as a universal data processor that maps diverse binary, XML, and text-based file structures into a unified internal object model, allowing developers to create, read, and transform workbook data programmatically. The library distinguishes itself through a portable logic layer that provides a consistent execution environment across web browsers, server-side runtimes, and native desktop or mobile applications. By utilizing stream-based processing, it handles large files in