Money.js - A JavaScript Currency Conversion Library

Money.js is a JavaScript currency conversion library, done right - with no dependencies, in just over 1 KB.  It is designed to work seamlessly with data from the Open Exchange Rates API project - but can easily use any data source and base currency with just a few lines of setup. And it works as a Node.js and RequireJS (AMD) module, too.

First things first: in order to do currency conversion in JavaScript, you need a reliable source of real-time exchange rates. The industry-standard exchange rate APIs, which people use to make currency trades, may cost anywhere between $100 and $1,000 per month for access!

The fact is though, 99% of apps and shopping carts don't need this expensive level of accuracy!  With that in mind, the Open Exchange Rates API uses algorithmic blending to calculate a consistently accurate and unbiased set of rates for 160 world currencies - and costs 10-20x less than the most popular competitor (with a Forever Free plan for most users).  Also, money.js allows you to use any source of exchange rates.

Forget trying to adapt those 10-year-old "FREE Currency Converter JavaScripts!" into something workable for your enterprise software or shopping cart: money.js is a simple library with one function: to convert a value from any currency to any other currency.

Requirements: None
Demo: http://josscrowcroft.github.com/money.js/#playground
License: MIT License

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