= CouchDB = Apache CouchDB, commonly referred to as CouchDB, is an open source database that focuses on ease of use and on being "a database that completely embraces the web". It is a NoSQL database that uses JSON to store data, JavaScript as its query language using MapReduce, and HTTP for an API. One of its distinguishing features is multi-master replication. CouchDB was first released in 2005 and later became an Apache project in 2008. == Installing == It's easy