web3.js

web3.js

LAUNCH PARTNER

web3.js

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

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 JS objects, subscribe to on-chain events, get block state directly from Ethereum nodes, and more. Web3.js is currently migrating to a modernized version built in TypeScript. The library has over 500,000 weekly downloads and is used by some of industry leading projects such as OpenSea.

User Interface of crypto currency wallet

Sign up for a free Alchemy Account

User Interface of crypto currency wallet

Web3 Dapps and Developer Tools Related To web3.js

Development Frameworks
A fast and convenient smart contract development and deployment framework for EVM blockchains.
Chains
Ethereum
Learn More
RPC Node Providers
A development tools and knowledge company helping onboard devs to Web3.
Chains
Ethereum, Solana, Polygon, Arbitrum, Optimism, Polkadot
Learn More
RPC Node Providers
A tool for Ethereum service provider comparison based on consistency and accuracy.
Chains
Ethereum
Learn More

Best Web3 Libraries

Discover more web3 applications and developer tools.

Build blockchain magic with Alchemy

Alchemy combines the most powerful web3 developer products and tools with resources, community and legendary support.