The Document-Graph database supports SQL and Native Queries, asynchronous commands, intents, and much more.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux


Firestore is described as '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' and is an website in the development category. There are more than 10 alternatives to Firestore, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and BSD apps. The best Firestore alternative is MongoDB, which is free. Other great sites and apps similar to Firestore are CouchDB, Triplit, Apache Cassandra and ArangoDB.
The Document-Graph database supports SQL and Native Queries, asynchronous commands, intents, and much more.


LiteDB is an open-source, MongoDB-like database that requires no configuration and is mobile-ready. It's a serverless database delivered in a single DLL under 450kb, fully written in .NET C# managed code and compatible with .NET 4.5 and NETStandard 2.0.



EJDB 2.0 — Embeddable JSON Database engine C library. Simple XPath like query language (JQL). Websockets / Android / iOS / React Native / Flutter / Java / Dart / Node.js bindings.

MarkLogic is the only Enterprise NoSQL database, bringing all the features you need into one unified system: a document-centric, schema-agnostic, structure-aware, clustered, transactional, secure, database server with built-in search and a full suite of application services.