Robinhood Chain is now live on Chainstack! Deploy reliable nodes for tokenized stocks today.    Start building
  • Agents
  • Pricing

web3.js

Developer library for Web3 apps, smart contracts, wallets, and RPC. A focused building block for the implementation path.

Type

Developer tool

Protocols

Frame 2006 6 logo Ethereum Frame 2005 7 logo BNB Smart Chain Frame 2005 16 logo Polygon Frame 2005 2 logo Arbitrum Base logo Base Optimism logo Optimism Avalanche logo Avalanche

Developer library for Web3 apps, smart contracts, wallets, and RPC. Reach for web3.js when the implementation needs a focused contract, SDK, test, or deployment layer.

Use it for:

  • Build typed blockchain integrations.
  • Read chain state through RPC providers.
  • Send transactions and call smart contracts.
  • Create scripts, backends, and application libraries.

Best fit:

Developers who want a clear tool in the contract, application, or deployment workflow.