nano-memoize is a blazing fast and lightweight memoization library for JavaScript. It expertly caches function results, significantly improving performance by avoiding redundant calculations for identical inputs. Designed for speed and minimal overhead, nano-memoize offers configurable cache sizes and customizable equality checkers, making it adaptable to various use cases. It's ideal for optimizing computationally intensive functions in performance-critical applications, ensuring efficient resource utilization without sacrificing codebase clarity.