# openexchangerates/money.js

money.js is a tiny (1kb) javascript currency conversion library, for web & nodeJS

Repository: https://github.com/openexchangerates/money.js
Canonical: https://ross.abutalabs.com/products/moneyjs
Homepage: http://openexchangerates.github.io/money.js
Language: CSS
License: MIT
License Family: permissive
Last push: 2022-09-09T12:08:19+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5440, "days_push": 1454, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1476, forks 124 (observed 2026-08-28T04:04:50.248928+00:00)

## What it is
money.js is a tiny (~1kb) dependency-free JavaScript library for currency conversion and exchange rate calculation between any currencies. It works client-side or in NodeJS, and integrates with the Open Exchange Rates API or any other exchange rate data source.

## Use cases
- convert money between currencies in javascript
- calculate exchange rates in a shopping cart
- convert currency values in a nodejs app
- parse a formatted price string and convert it
- integrate exchange rate data from any api
- display prices in multiple currencies on a website

## When to choose
- you need a lightweight, dependency-free currency conversion utility for browser or node
- you already have exchange rate data (e.g. from Open Exchange Rates) and just need conversion math
- you want a simple standalone function rather than a full money/accounting library

## When to avoid
- you need live exchange rates bundled in - you must supply rate data yourself
- you need currency formatting, rounding, or money arithmetic beyond simple conversion
- you need actively developed features or recent bug fixes

## Facets
- artifact type: library
- maturity: maintenance
- function: sdk
- domain: fintech, web-development, developer-tools
- platform: browser, cross-platform
- tags: currency-conversion, exchange-rates, javascript, money, tiny-library, nodejs

## Member repositories
- openexchangerates/money.js (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:50.248928+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:34:28.423997+00:00, confidence not recorded.
  - readme: https://github.com/openexchangerates/money.js (fetched 2026-08-28T04:04:50.248928+00:00, sha 8d22c9e28f94)
  - homepage: http://openexchangerates.github.io/money.js (fetched 2026-08-29T11:41:39.540823+00:00, sha 6a29d6213cb5)
- Data as of 2026-08-30T08:39:29.467469+00:00.