level/memory-level

Memory Level is an in-memory database for Node.js and browsers that provides a fully persistent red-black tree implementation, serving as a successor to memdown and level-mem. It's designed for developers who need a fast, temporary storage solution that maintains sorted key-value pairs and supports complex queries like iterators with range operations. The project is particularly useful for testing, caching, or any scenario where you need a LevelDB-compatible interface without the overhead of disk persistence.