CouchDB is described as 'Apache CouchDB is a distributed, fault-tolerant and schema-free document-oriented database accessible via a RESTful HTTP / JSON API. It includes incremental map / reduce mechanics for queries and keeps data safe with an append-only datastore' and is a relational database in the development category. There are more than 50 alternatives to CouchDB for a variety of platforms, including Linux, Windows, Mac, Self-Hosted and Web-based apps. The best CouchDB alternative is PostgreSQL, which is both free and Open Source. Other great apps like CouchDB are MySQL Community Edition, MongoDB, MariaDB and Redis.
PostgreSQL is a powerful, open source object-relational database system with over 35 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.
MySQL Community Edition is a freely downloadable version of the world's most popular open source database that is supported by an active community of open source developers and enthusiasts.
CouchDB is not bound to the relational DB model -- it's "NoSQL". ... Any DB might be an alternative, but a relational DB like MySQL cannot be a good alternative to a "NoSQL" DB.
MongoDB is a document database with the scalability and flexibility that you want with the querying and indexing that you need
MariaDB is a backward compatible, drop-in replacement of the MySQL® Database Server. It includes all major open source storage engines.
The in-memory data store used by millions of developers as a cache, vector database, document database, streaming engine, and message broker.
SQL Server delivers on Microsoft’s Data Platform vision by helping your organization manage your data by enabling you to store data from structured, semi-structured, and unstructured documents within the database.
Azure Cosmos DB is a NoSQL document database service designed from the ground up to natively support JSON and JavaScript directly inside the database engine. It’s the right solution for web and mobile applications when predictable throughput, low latency, and flexible query are...
ArangoDB database is an open-source NoSQL solution with a flexible data model for documents, graphs, and key-values.
A full-stack, syncing database that runs on both server and client. Pluggable storage (indexeddb, sqlite, durable objects), syncs over websockets, and works with your favorite framework (React, Solid, Vue, Svelte).
The Apache Cassandra database is the right choice when you need scalability and high availability without compromising performance.
Couchbase is the NoSQL database market share leader, with production deployments at AOL, Deutsche Post, NTT Docomo, Salesforce.com, Turner Broadcasting Systems, Zynga and hundreds of other organizations worldwide.
Firestore is a NoSQL document database built for automatic scaling, high performance, and ease of application development. While the Firestore interface has many of the same features as traditional databases, as a NoSQL database it differs from them in the way it describes...
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Also a relational database