gridplus/cryptobridge-contracts

Higher-order functions and common patterns for asynchronous code

Light, ultra-fast javascript implementation for BigIntegers (base arithmetic operations)

Bitcoin BIP39: Mnemonic code for generating deterministic keys

Full featured Promises/A+ implementation with exceptionally good performance

Provides Block serialization and help functions

A simple module for creating, manipulating and signing Ethereum transactions

A collection of utility functions for Ethereum

Utilities for handling Ethereum keys

A simple SHA-3 / Keccak / Shake hash function for JavaScript supports UTF-8 encoding.

Easily read/write JSON files.

String left pad

This is an implementation of the modified merkle patricia tree as specified in Ethereum's yellow paper.

Tools for creating merkle trees, generating merkle proofs, and verification of merkle proofs.

Recursive Length Prefix Encoding Module

Solidity sha3 in Javascript

Ethereum JavaScript API

yargs the modern, pirate-themed, successor to optimist.