ReasonDB (npm): A 100% JavaScript client and server database with a SQL like syntax, streaming analytics, 18 built-in predicates, in-line fat arrow predicates, predicate extensibility, indexed Dates and Arrays, joins, nested matching, and swapable persistence engines in 
Keywords: CouchDB|PouchDB|Firebase|MongoDB|Cloudbase|CloudDB|JSON|database|Redis|Memcached|IronCache|levelup|leveldown