The keccak256 hash function for ethers.

Hash utility functions for Ethereum development including ENS domain hashing, message hashing, and EIP-712 typed data encoding.

BIP32 Hierarchical Deterministic Node operations for Ethereum wallets and key derivation.

Common Ethereum constants used for ethers including addresses, hashes, symbols, and BigNumber mathematical constants.

Contract abstraction meta-class that enables developers to interact with Ethereum smart contracts as native JavaScript objects

Bytes utility functions for converting, validating, and manipulating binary data in Ethereum applications.

A complete and compact Ethereum library for dapps, wallets and any other tools.

Smart contracts for Optimism Layer 2 scaling solution including L1/L2 messaging, bridging, rollup management, and predeploy contracts

Provides Block serialization and help functions for Ethereum blockchain development

Advanced framework for testing smart contracts with enhanced chai matchers, mock contracts, and testing utilities.

ECMAScript JS AST traversal functions with visitor patterns for code analysis and transformation

A query library for ECMAScript AST using a CSS selector like query language.

ECMAScript parsing infrastructure for multipurpose analysis

An Esprima-compatible JavaScript parser built on Acorn

JavaScript language tools monorepo containing espree parser, eslint-scope analyzer, and eslint-visitor-keys utilities

Node.js runtime enhanced with esbuild for loading TypeScript & ESM

Power-assert instrumentor for TypeScript that provides zero-config and programmatic integration

ECMAScript module loader that enables ES module syntax in Node.js 6+ without Babel or bundling

A webpack plugin that integrates ESLint into the webpack build process for automated JavaScript linting

An AST-based pattern checker for JavaScript that provides comprehensive linting capabilities with configurable rules and autofix support.