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web3.js

What is web3.js

A TypeScript/JavaScript library used to let DApps interact with the Ethereum blockchain.

ethereum

What is web3.js?

Web3.js was created as a way for developers to easily connect their DApps with information on the Ethereum blockchain. Using its modular libraries, developers can interact with smart contracts as if they are TypeScript/JavaScript objects, subscribe to on-chain events, get block state directly from Ethereum nodes, and more. Its version 4 has been rewritten in TypeScript and provided new features like Plugins. The library has over 500,000 weekly downloads and is used by some of industry leading projects such as Truffle.

web3.js Alternatives:

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Etherspot TransactionKit
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light.js
light.js

A high-level reactive JS library optimized for light clients.

Web3.py
Web3.py

Web3.py is a Python library for interacting with Ethereum.

web3j
web3j

Lightweight Java and Android library for integration with Ethereum clients.