json-bignumber
JSONBigNumber.parse/stringify handling **all** JSON numbers using BigNumber. Based on Douglas Crockford [JSON.js](https://github.com/douglascrockford/JSON-js) package and [bignumber.js](https://github.com/MikeMcl/bignumber.js) library.
js-big-integer
Yet another class for arbitrary-precision integers in pure JavaScript. Small. Well tested.
cbor-bigdecimal
Plugin for node-cbor to add BigDecimal and BigFloat support. Requires bignumber.js
nowjs-core
NowCanDo Javascript Core [nowjs-core] is a library written by TypeScript code maintains under Apache 2.0 licence
hownow
Explainable calculator with internationalization support - track calculation steps and provide transparent, translatable explanations