MongoDB is a document database with the scalability and flexibility that you want with the querying and indexing that you need
Cost / License
- Freemium
- Source Available (SSPL-1.0)
Application type
Platforms
- Mac
- Windows
- Linux
- Online
- BSD
NCache is described as 'Open Source in-memory distributed cache for .NET, Java, and Node.js. NCache provides an extremely fast and linearly scalable distributed cache that caches application data and reduces expensive database trips' and is a in-memory database in the development category. There are more than 25 alternatives to NCache for a variety of platforms, including Linux, Mac, Windows, Self-Hosted and Web-based apps. The best NCache alternative is MongoDB. Other great apps like NCache are Redis, DiceDB, Valkey and FerretDB.
MongoDB is a document database with the scalability and flexibility that you want with the querying and indexing that you need
The in-memory data store used by millions of developers as a cache, vector database, document database, streaming engine, and message broker.

DiceDB is an open-source, fast, reactive, in-memory database optimized for modern hardware. Commonly used as a cache, it offers a familiar interface while enabling real-time data updates through query subscriptions.

Valkey is an open source (BSD) high-performance key/value datastore that supports a variety of workloads such as caching, message queues, and can act as a primary database. Valkey can run as either a standalone daemon or in a cluster, with options for replication and high...
FerretDB (formerly MangoDB) is an open-source proxy, which converts MongoDB wire protocol queries to SQL, and uses PostgreSQL as a database engine.
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.
KeyDB is fast NoSQL database with full compatibility for Redis APIs, clients, and modules.
Cloudify is an orchestration-first, model-driven cloud management platform native to Network function virtualization (NFV), that is open source and based on the TOSCA standard.



Free & open source, high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load.

Bluzelle is a decentralized and open source database powered by PBFT Consensus Engine. It is a NoSQL key-value store database. Learn about trustless computing and discover the benefits of a decentralized by joining our Beta testing for free.


Hazelcast is an in-memory Open Source data grid based on Java. By having multiple nodes form a cluster, data is evenly distributed among the nodes. This allows for horizontal scalability both in terms of available storage space and processing power.
OrbitDB is a serverless, distributed, peer-to-peer database. OrbitDB uses IPFS as its data storage and IPFS Pubsub to automatically sync databases with peers. It's an eventually consistent database that uses CRDTs for conflict-free database merges making OrbitDB an excellent...