Redis is an open source, in-memory NoSQL database that was created in 2009 by Salvatore Sanfilippo, Redis Labs’ lead of open source development. Redis has been ranked the #1 NoSQL (and #4 database) in user satisfaction and market presence by G2 Crowd, the most popular NoSQL database in containers by DevOps.com and ClusterHQ, the #2 NoSQL among top 50 developer tools & services by Stackshare and both the fastest growing database since January 2013 and one of the top three NoSQL databases by DB-engines.