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web3.js

The original Ethereum JavaScript library, now at v4 with TypeScript support and a plugin architecture. Covers contract interaction, event filtering, and transaction management. Preferred for codebases predating viem or teams already invested in the web3.js ecosystem.

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Supported Chains

EthereumBasePolygonRobinhood Chain

Best For

web3.js is useful for builders evaluating Developer Tools across Ethereum, Base, Polygon, Robinhood Chain.

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