Apache CouchDB is open source database software that focuses on ease of use and having a scalable architecture. It has a document-oriented NoSQL database architecture and is implemented in the concurrency-oriented language Erlang; it uses JSON to store data, JavaScript as its query language using MapReduce, and HTTP for an API.
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As of February 2026, the mindshare of CouchDB in the NoSQL Databases category
stands at 2.1%, down from 2.2% compared to the previous year, according to calculations based on PeerSpot user engagement data.
