Dinero.js
Create, calculate, and format money in JavaScript and TypeScript
...The library provides an immutable data structure for representing money, ensuring that operations such as addition, subtraction, and conversion do not introduce unintended side effects. It also includes utilities for formatting monetary values according to different locales and currencies, making it suitable for internationalized applications. Dinero.js supports complex financial operations such as comparisons, allocations, and conversions, enabling developers to build robust financial systems with confidence. Its functional architecture and modular design make it highly adaptable and efficient, particularly in modern frontend and backend environments.