Optio Packages

Easy-to-use config storage via JSON with optional base-64 encryption for sensitive data

is a tiny JS library for one time passcode (OTP). Supports smart input suggestion on iOS and code autofill on Android (it will be filled when you press the copy button on the SMS notification bar)

a flow control system for JS/Node.js

The meta-framework suite designed from scratch for frontend-focused modern web development.

Serenity/JS: Next generation acceptance testing library for modern web applications.

Bare bones Ethereum objects

Multicoin address validator for Bitcoin and other Altcoins.

Component for writing plaintext CSS in JavaScript apps

List of JavaScript types

Communicate with Geth via JSON-RPC

Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported wallets, framework agnostic modern javascript UI with code splitting, CSS customization, mul

Moralis provides a single workflow for building high performance dapps. Fully compatible with your favorite web3 tools and services. This SDK brings the power of Moralis to your Unity projects.

Base64 encoding/decoding in pure JS on both modern Browsers and Node.js. Also supports URL-safe base64

A Karma plugin. Concatentate haml attributes to one line so that haml-js can process them

Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported wallets, framework agnostic modern javascript UI with code splitting, CSS customization, mul

A library for cryptocurrency trading and e-commerce with support for many bitcoin/ether/altcoin exchange markets and merchant APIs

An Ember addon for Fastboot-enabled userAgent parsing via UAParser.js.

CoinPayments is a cloud wallet solution that offers an easy way to integrate a checkout system for numerous cryptocurrencies. Coinpayments now also offers coin conversion via Shapeshift.io.

A JavaScript / Python / PHP cryptocurrency trading library with support for 130+ exchanges

ENtity Relationship Extractor (ENRE) for modern JavaScript/TypeScript