flru offers a fast, lightweight, and efficient Least Recently Used (LRU) cache implementation perfect for Node.js and browser environments. Prioritizing performance, it provides optimized get, set, and delete operations with customizable cache size using options such as maxAge for time-based evictions. Its small footprint makes it ideal for resource-constrained applications, enabling developers to easily integrate caching functionality for improved performance and reduced latency. flru enhances data access efficiency and optimizes application responsiveness with an easy-to-use API.