Open-source alternatives to Web3j

AppKit is a multi-chain wallet connection kit and onboarding framework designed to integrate diverse blockchain networks into a unified interface. It provides a comprehensive suite for connecting applications to EVM, Solana, Bitcoin, TON, and TRON ecosystems, facilitating both self-custodial wallet linking and the creation of new accounts. The project distinguishes itself through a Web3 onboarding system that utilizes social and email-based authentication to generate embedded wallets, reducing cryptographic friction for new users. It further supports advanced identity management via a blockch

Scaffold-eth is a comprehensive development stack and boilerplate for building decentralized applications. It provides a pre-configured starter kit that integrates smart contract development tools with a reactive user interface to accelerate the construction of Ethereum-based projects. The toolkit features dynamic frontend interface generation, which automatically builds a user interface mapped to smart contract functions for rapid logic verification. This allows for testing blockchain logic through a frontend without the need to write custom UI code. The project covers a broad range of deve

web3.js is a comprehensive TypeScript library designed to facilitate interaction with Ethereum-compatible blockchain networks. It serves as a foundational toolkit for decentralized applications, providing the necessary interfaces to query network state, manage cryptographic identities, and execute smart contract transactions. By abstracting the complexities of blockchain communication, the library enables developers to integrate decentralized logic directly into their applications. The library distinguishes itself through a modular architecture that prioritizes extensibility and flexible conn

ethers.js is an Ethereum JavaScript library used to interact with the Ethereum blockchain by querying state and sending transactions via JSON-RPC providers. It functions as a smart contract wrapper, a Web3 provider interface, and a system for managing wallets and cryptographic signatures. The project provides a dedicated Ethereum Name Service resolver for translating human-readable names into blockchain addresses through forward and reverse lookup operations. It also includes an implementation for managing private keys and mnemonic phrases to sign digital data and authorize on-chain transacti

Sui is a blockchain platform featuring an object-centric state model and resource-oriented smart contracts. It utilizes parallel transaction execution to increase network throughput and supports programmable transaction blocks that bundle multiple operations into single atomic units. The platform distinguishes itself with a capability-based access control system and zero-knowledge login mechanisms, enabling users to authenticate via identity providers without seed phrases. It also implements deterministic object addressing to allow predictable state lookups and supports the creation of soulbo

web3.js is a TypeScript development framework and library for integrating applications with the Ethereum blockchain. It serves as an Ethereum JSON RPC library for querying data and sending transactions, a smart contract interface for interacting with on-chain logic, and a wallet integration toolkit for managing private keys. The project provides specialized capabilities for blockchain node communication, enabling the execution of smart contract functions and the management of Ethereum accounts. It includes tools for web3 address resolution to translate human-readable names into machine-readab

Remix is a comprehensive blockchain development environment and Ethereum smart contract IDE. It provides a complete workspace for writing, compiling, deploying, and debugging smart contracts across simulated and public blockchain networks. The project distinguishes itself as a specialized toolchain for EVM debugging and analysis, offering opcode-level transaction stepping and state memory analysis. It also includes a dedicated zero-knowledge proof toolchain for compiling ZK circuits and generating cryptographic proofs, alongside an AI-powered coding assistant for code generation and explanati

This repository should be archived in the future, please go to https://github.com/web3p/web3.php.

Ethereum JSON-RPC multi-transport client. Rust implementation of web3 library. ENS address: rust-web3.eth

Elixir JSON-RPC client for the Ethereum blockchain

A transparent gateway on top of Ethereum nodes for load-balancing, permissions checking.

Kotlin library for Ethereum

PHP interface to Ethereum JSON-RPC API. Fully typed Web3 for PHP 7.X

A resilient Ethereum event listener that bridges your smart contract events and backend microservices

Ethereum library for the Ruby language

This project is a collection of blockchain tools providing an Ethereum client node, a virtual machine runtime for smart contract execution, a blockchain wallet manager, and a programmatic network interface. It implements the necessary components to synchronize blockchain state, validate blocks, and process transactions on the Ethereum network. The software includes a dedicated command line interface for managing node operations and monitoring network status. It features a comprehensive suite of cryptographic utilities for generating account keypairs, managing encrypted secret stores, and sign

The Operator SDK is a framework for building, packaging, and managing custom controllers that extend the Kubernetes API. It serves as a toolset for defining new API types and implementing reconcile loops to automate the lifecycles of complex applications. The project provides specialized support for creating operators based on Helm charts or Ansible playbooks, allowing users to maintain a desired cluster state using existing automation tools. It includes a dedicated system for packaging controllers into standardized container image bundles for distribution via the Operator Lifecycle Manager.

kbone is an isomorphic frontend framework and web-to-mini-program adapter. It serves as a cross-platform UI bridge and DOM simulation library that allows web applications to run inside WeChat Mini Programs by simulating a browser environment for JavaScript code. The project enables the migration of web UI frameworks into restricted environments by providing simulated browser interfaces and APIs. It translates standard web components and routing into native mini program elements and page transitions, allowing a single codebase to function as both a standard website and a mini program. The fra

ABP is an opinionated architectural framework for building enterprise software solutions using .NET and ASP.NET Core. It serves as a structural toolkit for implementing domain-driven design and microservices patterns, providing a modular enterprise architecture where functionality is organized into independent, pluggable modules. The platform is specifically designed to support multi-tenant SaaS architectures, isolating data and configurations for multiple independent customers within a single application instance. It provides enterprise boilerplate infrastructure and pre-configured templates

jscamp is a full-stack web development and education project focused on mastering JavaScript, TypeScript, and AI integration. It provides a structured curriculum and interactive exercises covering language fundamentals, frontend engineering, and backend API development. The project distinguishes itself through the implementation of autonomous AI agents capable of complex task automation, such as modifying files, managing servers, and executing API calls. It includes advanced AI development tools for conversational querying, real-time code suggestions, and automated repository analysis to gene

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

Substrate is a modular blockchain development framework used to build customized blockchain networks with programmable state transitions and consensus mechanisms. It functions as a toolkit for constructing bespoke network protocols and deploying nodes to local environments or global testnets. The framework utilizes a WebAssembly runtime environment to execute state transition logic, ensuring deterministic behavior across all network nodes. It enables the composition of modular logic components and runtime palettes to define the specific rules and behavior of a blockchain. The system covers c

Solana Web3.js is a TypeScript and JavaScript client library for interacting with the Solana blockchain. It functions as a web3 client that provides an RPC wrapper for managing network requests and a toolkit for querying account state and executing on-chain program instructions. The library includes a specialized cryptography interface for generating key pairs and performing asynchronous signing and verification using web cryptography standards. It also provides a serialization tool for encoding and decoding data between JavaScript objects and byte buffers to match on-chain program state. Th

Reth is a modular, high-performance Ethereum execution layer client written in Rust. It serves as a full Ethereum node that syncs, validates, and serves blockchain data, functioning as an archive node implementation, a high-throughput RPC node server, and a snapshot sync tool. The project is built around a modular component architecture that allows assembling custom node behavior by swapping independent Rust crates for consensus, execution, mempool, and networking. The client distinguishes itself through a staged sync pipeline that downloads headers and bodies online before processing the res

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

Bitcore is a blockchain development framework and a set of libraries used to build applications that interact with the Bitcoin network and other blockchain protocols. It provides a multi-chain cryptocurrency wallet implementation, a peer-to-peer client for synchronizing distributed ledger data, and a transaction orchestrator for constructing, signing, and broadcasting transactions. The framework features a standardized JSON-RPC wrapper to normalize communication between applications and diverse blockchain node APIs. It implements hierarchical deterministic wallets that derive keys and address

Ganache-UI is a visual interface and dashboard for managing a local Ethereum blockchain environment. It functions as a local blockchain simulator and node dashboard, providing a graphical way to develop and test smart contracts without connecting to a public network. The project provides tools for monitoring blockchain state, inspecting transaction logs, and visualizing blocks and account balances. It serves as a debugger for Ethereum applications, allowing for the simulation of transactions and verification of contract behavior during the development workflow. The interface handles client-s