CockroachDB, Sequel Pro, SQLite, Microsoft SQL Server, Amazon DynamoDB, Redis, MongoDB, PostgreSQL, PlanetScale, MySQL Community Edition, IBM Lotus Approach, MariaDB, Google Cloud Bigtable, HSQLDB, Apache Cassandra, AskSam, Raven DB, H2 Database Engine, Titan Database, RethinkDB, Apache HBase, lowdb, IBM DB2, Couchbase, UnQLite, Hazelcast, MeshyDB, Orient DB, SQLGate, MarkLogic, ArangoDB, Bluzelle Decentralized DB, VoltDB, Mimer SQL, Tarantool, CUBRID Database, Amazon RDS, GraphDB, Matisse, KeyDB, NuoDB, Action PSQL, Polyhedra RDBMS, DeepDB, Postgres-XC, Database Labs, FleetDB, Starcounter, IBM Cloudant, Orchestrate, OrbitDB, BigMemory, Clustrix, Amazon Neptune, NosDB, EdgeDB, SAP MaxDB, Persevere, Frontbase, BigchainDB, ScaleOut are some alternatives to CouchDB.