Cost / License
- Freemium (Pay once)
- Proprietary
Application type
Platforms
- Mac
- Windows
- Linux
- Raspberry Pi

MySQL Community Edition is described as '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' and is a very popular relational database in the development category. There are more than 50 alternatives to MySQL Community Edition for a variety of platforms, including Windows, Linux, Mac, Web-based and Self-Hosted apps. The best MySQL Community Edition alternative is PostgreSQL, which is both free and Open Source. Other great apps like MySQL Community Edition are SQLite, MariaDB, MongoDB and Microsoft SQL Server.

HSQLDB (Hyper Structured Query Language Database) is a relational database management system written in Java. It has a JDBC driver and supports a large subset of SQL-92 and SQL:2008 standards. It offers a fast, small (around 1300 kilobytes in version 2.

A complete cloud-first data platform that includes a multi-model transactional data management engine, an application development platform, and interoperability engine, and an open analytics platform.
H2 is a relational database management system written in Java. It can be embedded in Java applications or run in the client-server mode. The disk footprint (size of the jar file) is about 1 MB.
FrontBase was created to fill the need for a robust and scalable relational database server that was Internet enabled, had no downtime, and required zero administration. FrontBases speed, wide range of features, and flexible structure can give you the competitive edge.
Home of Scimore Distributed SQL database and Scimore Embedded SQL database. Both supports SQL, ACID for both DDL&DML, advanced query prioritization and multiversioning concurrency protocol, so read transactions never blocks.
The Starcounter database is built with the real-time systems of today in mind. Real-time systems supporting thousands or millions of simultaneous users. Systems like online stores, location-based services or banking applications.
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...
MaxDB is an ANSI SQL-92 (entry level) compliant relational database management system (RDBMS) from SAP AG, which was delivered also by MySQL AB from 2003 to 2007. MaxDB is targeted for large SAP environments e.g.
SQLMachine is a freeware, safe, scalable and adequate performance client-server side architectural SQL DBMS. (Database Management System).




VoltDB is a blazingly fast NewSQL database system. It is specifically designed to run on modern scale-out architectures - fast, inexpensive servers connected via high-speed data networks.
ScratchDB is a wrapper around Clickhouse that lets you input arbitrary JSON and perform analytical queries against it. It automatically creates tables and columns when new data is added.
