Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- BSD

Apps similar to Apache Cassandra include PostgreSQL, which is free and open source. Other options are MySQL Community Edition, MongoDB, MariaDB and Redis. There's no shortage of Relational Databases like Apache Cassandra, with more than 50 alternatives for Linux, Windows, Mac, self-hosting and the web.

Oracle Database delivers industry leading performance, scalability, security and reliability on a choice of clustered or single-servers running Windows, Linux, and UNIX. It provides comprehensive features to easily manage the most demanding transaction processing, business...

Titan is a scalable graph database optimized for storing and querying graphs containing hundreds of billions of vertices and edges distributed across a multi-machine cluster. Titan is a transactional database that can support thousands of concurrent users executing complex graph...




Raven is an Open Source (with a commercial option) document database for the .NET/Windows platform. Raven offers a flexible data model design to fit the needs of real world systems. Raven stores schema-less JSON documents, allow you to define indexes using Linq queries and focus...
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.


HBase is an open source, non-relational, distributed database modeled after Google's BigTable and is written in Java. It is developed as part of Apache Software Foundation's Apache Hadoop project and runs on top of HDFS (Hadoop Distributed Filesystem), providing...
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.



NosDB is a 100% native .NET Open Source NoSQL Database (released under the Apache 2.0 License). NosDB is extremely fast and linearly scalable and allows your .NET applications to handle extreme transaction loads (XTP).



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...
Datomic is a database of flexible, time-based facts, supporting queries and joins, with elastic scalability, and ACID transactions.