Solidity coder for non-standard (tight) packing.

Recursive-Length Prefix (RLP) coder for Ethereum applications.

Logger utility functions for ethers with comprehensive error handling and validation capabilities.

Property utility functions for the ethers.js ecosystem, providing object property management and manipulation capabilities.

Network definitions and configuration management for Ethereum and compatible blockchain networks

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