Comparison

currency.js

currency.js is compact and easy to use. It accepts many input shapes and works well for UI-heavy currency arithmetic.

money-safe keeps a similar low-friction feel for common flows, while keeping decimal strings, minor units, number migration, and JSON payloads distinct.

dinero.js

dinero.js is the most complete money-domain reference in the JavaScript ecosystem.

money-safe aims to be smaller and more direct for backend order, pricing, refund, discount, and allocation flows.

decimal.js

decimal.js is an arbitrary-precision decimal math library.

money-safe is a money-domain library. It focuses on amounts, currencies, minor units, rounding, and allocation rather than general math.