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MongoDB

JSON document database.

DatabaseFreemium
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NoSQL database oriented to JSON documents (BSON), with a flexible schema. Available self-hosted or as a service (Atlas).

When to use

When the data are flexible documents whose shape changes often.

When to avoid

If there are many relations and queries across entities; a relational database is usually safer.

Alternatives

They do a similar job. Compare before choosing.

  • PostgreSQL

    Robust, extensible relational database.

    DatabaseOpen source★ 22.6K

Related

From the same area, with a close purpose.

  • Apache CouchDB

    Document database with an HTTP API and multi-master sync.

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  • Apache Cassandra

    Distributed database with high availability and write scale.

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  • Amazon DynamoDB

    AWS's serverless NoSQL database, with steady latency at any scale.

    ServicePaid