Open-source alternatives to Complex.js

Numeral-js is a JavaScript number formatting library used to convert raw numeric values into human-readable strings for currencies, percentages, and abbreviations. It includes a numeric string parser to extract raw values from formatted strings by removing symbols and delimiters. The library provides locale-aware formatting to adjust decimal separators and currency symbols based on regional language settings. It also features a data size converter that transforms byte values into readable measurements using base-1000 or base-1024 standards. The system supports the registration of custom form

Chance is a JavaScript library for generating random data, designed to produce realistic test data for automated tests and prototypes. It uses a Mersenne Twister pseudo-random number generator that accepts an optional seed value, enabling reproducible sequences of random values across multiple runs. The library provides a wide range of generators for common data types, including random integers, floats, booleans, characters, strings, and dates, all with configurable ranges and character pools. It can generate realistic geographic data like addresses, as well as financial data such as credit c

Odometer is a JavaScript number animation library and frontend UI tool designed to create fluid counting effects. It functions as a numerical transition component that updates numbers on a page using animated rolling or sliding transitions. The library focuses on numerical value animation and data transition effects, allowing users to transition smoothly between two numerical values. This is used for updating metrics and key performance indicators in dynamic dashboard visualizations to avoid abrupt jumps in data displays.