Superseded by memory-level. In-memory abstract-leveldown store for Node.js and browsers.
Memdown is an in-memory abstract-leveldown store for Node.js and browsers that provides a key-value database interface. Built in JavaScript, it is designed to work with the levelup library and stores data as strings or Buffers in memory, with all data discarded when the process ends. The project is maintained by the Level community and has been superseded by memory-level, though it remains usable and can be wrapped with encoding-down for non-destructive encoding of data types.